genkernel: here are a few of my attempts to forward port our aufs support to a recent genkernel, all fail

sys-kernel/genkernel/Manifest

@@ -1,13 +1,29 @@
+AUX aufs-correct.diff 16362 RMD160 e5b32c95ffcac55e1a3b2803bd78b7431cf20e9a SHA1 6cccf26e62e6cf4b9829297fc0e128fa30c3935c SHA256 2755c721bb91107d986df78050137383fe0f1fd04277acb3865184093cf7c08b
+AUX aufs-new.diff 16771 RMD160 503ab2da8bb8c05543734650a4c85e1eeb4fc8dc SHA1 fd73a10f6181d6e2edc8e6a970a52788062316f3 SHA256 9ec8610c5f5085add6f5fef27c50d3b5b50a7d57232f9f8079cb37cd3632f556
+AUX aufs.diff 18177 RMD160 1ec49753853ec6f656c2a484a32223cd0ae58ba8 SHA1 3bdb6e5d652742c3e735be88c560e786a32aa1ed SHA256 39288c4d53614f4b4ca451de4c4ad376f1e8377ea8909424a1d82f04dbe999d1
 AUX genkernel.bash 2438 RMD160 b3d8e4436d8768c07d18c5aaff9c14fc16641729 SHA1 e15a9c6ef506aa6872a6a97d26751246dedded04 SHA256 e7de9771ba79ef878e2c9a21a1c1720f092c6047d3cc7d4a49ff6b90e7e2c248
+AUX initramfs.mounts 816 RMD160 a627d7f31ee919dc30057a1768c493229ada877f SHA1 3781d2eeb72ef0eb6b1e545d51545047e990faa1 SHA256 57ba8450e3f09edc9a4e5a1be15d49c77e4e014e27c626e9e3771167cbb54e49
 DIST LVM2.2.02.74.tgz 943084 RMD160 e5cb2a9e304c4075f05aecd03d67aa53eda9e43e SHA1 fc6cd04e4a908906c6f596ad99948140728be99c SHA256 a40c80c5b9a2547b8bd63e9321d7037c8bf041a35f734a5766ad2848d80bb697
+DIST LVM2.2.02.88.tgz 1029151 RMD160 a5918c6dfef8300b8ad9ab53e913ab487a051436 SHA1 05a4fb09cb5e3d680ad1b268c941968853fb1979 SHA256 a129d1d3949524da7d6d2a67218254baea02df06a6744faa5808a4182b2fb432
 DIST busybox-1.18.1.tar.bz2 2129404 RMD160 fb40d19103945eb1cd785a6041e5545f4055b8f6 SHA1 83b86858599870e46236da8d370d335d48cee77e SHA256 33eb25ea7b20c727c3af769256b21408a1ac1f927ff9f89a1f1e3767c18c9967
+DIST busybox-1.19.3.tar.bz2 2167188 RMD160 f8df020b47a363b1b308e852d2034758e42d16a9 SHA1 692754db46b129c70921ffb84eaef679061c0952 SHA256 a1a9a35732c719ef384f02b6e357c324d8be25bc154af91a48c4264b1e6038f0
 DIST device-mapper.1.02.22.tgz 189726 RMD160 8bf9986536c49f53c398d6a2180e21e1235bea18 SHA1 a4533872c32951a1b549bb9207a13b7e4dae0701 SHA256 ff833a6cd6246686f5b3f5692fd6597f1ffbc60f08929e5fe68304cdafb61595
 DIST dmraid-1.0.0.rc14.tar.bz2 164234 RMD160 9cd238a981cfef9c5c1f2f1d6466b70c95ec9c7c SHA1 2b3284db46a995967d88993ae5ae36b57c513bc4 SHA256 a777354d6d69a9b58d84966cc7b37bc3f5c89539f885ad25fd874ed1c388fbec
+DIST dmraid-1.0.0.rc16-3.tar.bz2 232743 RMD160 b661f5c465a11a4dcbb17db6b6632b32bcb7b723 SHA1 162b6173b91a0121a52402d2ed939b43d74ff605 SHA256 93421bd169d71ff5e7d2db95b62b030bfa205a12010b6468dcdef80337d6fbd8
 DIST e2fsprogs-1.41.14.tar.gz 4512157 RMD160 bdd22a93f57de1145007bffd6fc45323098e27e8 SHA1 24f9364fa3d4c0d7d00cb627b819d0e51055d6c5 SHA256 3f8ac1fedd7c4bec480afcbe4acabdd4ac59ec0446a0fd50c8975cd0aad7b176
+DIST e2fsprogs-1.42.tar.gz 5709827 RMD160 91136a82c35f86f54f6573f9788d32da66b972cb SHA1 e69bc63bc319e4d1e4242cc278bfd442a60646e6 SHA256 55b46db0cec3e2eb0e5de14494a88b01ff6c0500edf8ca8927cad6da7b5e4a46
 DIST fuse-2.7.4.tar.gz 506658 RMD160 fe1808cfd58ad6651259245b424301e99881faa2 SHA1 7a86f5cf39f38e64ccbae093599d64a895b950ba SHA256 c8b070ece5d4e09bd06eea6c28818c718f803d93a4b85bacb9982deb8ded49e6
+DIST fuse-2.8.6.tar.gz 505334 RMD160 df66df0256a677c50f2fc94fef6f34b2d598386c SHA1 c2c0f9fff8bfee217da200888123e5abb5b498f2 SHA256 1ec1913e38f09b2a9ec1579e1800805b5e2c747d1dce515e316dbb665ca139d6
+DIST genkernel-3.4.24.tar.bz2 211436 RMD160 3d29afb7c7bfac64e9cd09f1213fa5913de36643 SHA1 61629d89379b20b6b788c4c88153d6fe294ed657 SHA256 55611c867f1dc96c8711faabb8c17f62b1c5f8be27eb423e39fd53846552476c
+DIST genkernel-3.4.30.tar.bz2 210819 RMD160 c510bc13543ef2a96a151031d95caae41155afb2 SHA1 1d6429f2d1f2f031cdd09445c049bfda930993de SHA256 9c3d2ffac09c3e6043452daf325fc059f8f7eb774e4ea7af4d6d1d749bb7f74a
 DIST gnupg-1.4.11.tar.bz2 3407075 RMD160 9daf2dedfd4c6211fc13b8cdee8f08b8f5925378 SHA1 78e22f5cca88514ee71034aafff539c33f3c6676 SHA256 d18ceeac16e554a501170b9bfde611625252d0fe9448685a69c93bf149ee6ef6
 DIST mdadm-3.1.4.tar.bz2 288578 RMD160 f41a2be4158efac08dbe2e95f1c6812609475fad SHA1 4ee43922d38b15a930daaaa026ef1b4efacdbc8a SHA256 849ad0ad4ad3c1d2d8806a16b30e1f59ab2daf313cb103807207f7cba889ea63
+DIST mdadm-3.1.5.tar.bz2 292709 RMD160 e0542c4556988cae551b3399f0f0d27e42b68bda SHA1 e71859f16e1184df2c033a9e24a6f3f262bbf9a5 SHA256 1d547d0b36a88968e9fc9fb08b0e64de54a53f3d1cfa3656a9f319180f0727d3
 DIST open-iscsi-2.0-872.tar.gz 900081 RMD160 4eacb8a94cf7712f936b52a961fa7f11774dde67 SHA1 96880185791177ba7b8970742572b46ebfe901cd SHA256 37753697a170223ac02a292b3a23a315a3c747b490c42480e4057b676c9f8d4f
 DIST unionfs-fuse-0.22.tar.bz2 27355 RMD160 f29cbf41af0ba8f2181ac565a6663871676f6488 SHA1 e95799923ee3938e1fb44c6fd9aa7154d720063e SHA256 fa0c494a8ce63f235601fcc35e3a96527831169d6d5921ee49faccf3b25feb78
+DIST unionfs-fuse-0.24.tar.bz2 30381 RMD160 27934c23472f6e9d71e622f13aa9fd51a1f8018e SHA1 26f281e4e5f1e82194b430956b94cd7745d5bd97 SHA256 d8abc855eb618ac356b1e716599c82f8f0f74dbaee36d4062edc707567121937
+EBUILD genkernel-3.4.24.ebuild 5299 RMD160 ccea52b69caca68a079946fe44ab3b3197dab81c SHA1 1f65713df4373024ecc95ee3a2508fa8d86b08d8 SHA256 2b2b5905cfdfdc61bf741b57c44fd721e29b64ca079455c689561fa44d4e354c
+EBUILD genkernel-3.4.30.ebuild 5656 RMD160 b6b39f6a463a0c8a6f434e3a9d33f6cf73477a1e SHA1 0e7e196cc04fbc5fee33c47051f6e8bc829b214b SHA256 f0a74173521d7ff018ca7789f2112eeb8ae0c65a852339548cb0543d6b6c869a
 EBUILD genkernel-9999.2540.ebuild 5009 RMD160 bf510823f1aa9118d38d2672bcf4075d06260d23 SHA1 4b08734c9208734b9abdf0b34218bebfeb9cdc46 SHA256 54e051c18952c325edb2432a0eceaa5472e2209afd442f198eec47109e1d50f6
+EBUILD genkernel-9999.2998.ebuild 5009 RMD160 c9fc630b0ebe76dda415463bd0bab0f51a9b5efd SHA1 500bf742be83286cb0c56676e6219d72ff2eaa24 SHA256 9d33c03cd3d32f34620e2a36c3d0e11416fe40da9b3e081e15ffcc3429289bfd
 EBUILD genkernel-9999.ebuild 5009 RMD160 bf510823f1aa9118d38d2672bcf4075d06260d23 SHA1 4b08734c9208734b9abdf0b34218bebfeb9cdc46 SHA256 54e051c18952c325edb2432a0eceaa5472e2209afd442f198eec47109e1d50f6

sys-kernel/genkernel/files/aufs-correct.diff

@@ -0,0 +1,520 @@
+diff -Naur genkernel-3.4.30/defaults/initrd.defaults genkernel/defaults/initrd.defaults
+--- genkernel-3.4.30/defaults/initrd.defaults	2012-05-06 22:28:21.592425271 -0400
++++ genkernel/defaults/initrd.defaults	2012-05-06 22:29:10.618426583 -0400
+@@ -73,6 +73,7 @@
+ NEW_ROOT='/newroot'
+ CDROOT_PATH='/mnt/cdrom'
+ CONSOLE='/dev/console'
++MODULESD="${CDROOT_PATH}"
+ 
+ LOOPS='/livecd.loop /zisofs /livecd.squashfs /image.squashfs /livecd.gcloop'
+ 
+diff -Naur genkernel-3.4.30/defaults/initrd.scripts genkernel/defaults/initrd.scripts
+--- genkernel-3.4.30/defaults/initrd.scripts	2012-05-06 22:28:21.594425271 -0400
++++ genkernel/defaults/initrd.scripts	2012-05-06 22:29:10.619426583 -0400
+@@ -207,6 +207,192 @@
+ 	[ ${ret} -eq 0 ] || bad_msg "Failed to mount /sys!"
+ }
+ 
++# Insert a directory tree $2 to an union specified by $1
++# Top-level read-write branch is specified by it's index 0
++# $1 = union absolute path (starting with /)
++# $2 = path to data directory
++#
++union_insert_dir() {
++	# Always mount it over the precedent (add:1:)
++	mount -n -o remount,add:1:$2=rr aufs $1
++	if [ $? = '0' ]
++	then
++		good_msg "Addition of $2 to $1 successful"
++	fi
++}
++
++# Insert all modules found in $1, usually mnt/cdrom
++# added to allow users to add their own apps.
++union_insert_modules() {
++	for module in `ls ${NEW_ROOT}/$1/modules/*.mo 2>/dev/null| sort`
++	do
++		mkdir -p ${MEMORY}/modules/`basename ${module} .mo`
++		union_insert_dir $UNION ${MEMORY}/modules/`basename ${module} .mo`
++	done
++	for module in `ls ${NEW_ROOT}/$1/modules/*.lzm 2>/dev/null| sort`
++	do
++		mkdir -p ${MEMORY}/modules/`basename ${module} .lzm`
++		mount -o loop,ro ${module} ${MEMORY}/modules/`basename ${module} .lzm`
++		union_insert_dir $UNION ${MEMORY}/modules/`basename ${module} .lzm`
++	done
++}
++
++# Function to create an ext2 fs on $CHANGESDEV, $CHANGESMNT mountpoint
++create_changefs() {
++	local size
++	while [ 1 ]
++	do
++		read -p '<< Size of file (Enter for default 256 Mb): ' size
++		if [ -z "$size" ]; then
++			let size=256
++		fi
++		let size="$size"
++		if [ $size -lt 16 ]
++		then
++			bad_msg "Please give a size of at least 16 Mb"
++		else
++			dd if=/dev/zero of=$CHANGESMNT/livecd.aufs bs=1M count=$size
++			if [ $? = '0' ]
++			then
++				good_msg "Creation of livecd.aufs, $size Mb on $CHANGESDEV successful, formatting it ext2"
++				mke2fs -F $CHANGESMNT/livecd.aufs
++				break
++			else
++				rm -f $CHANGESMNT/livecd.aufs
++				bad_msg "Unable to create livecd.aufs on $CHANGESDEV of $size Mb"
++				bad_msg "Please give a size of at least 16 Mb"
++				bad_msg "Also check if your disk is full or read-only ?"
++				read -p '<< Type "a" to abort, anything else to continue : ' doabort
++				if [ "$doabort" = "a" ]; then
++					return 1
++				fi
++			fi
++		fi
++	done
++	return 0
++}
++
++setup_aufs() {
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		# Directory used for rw changes in union mount filesystem
++		UNION=/union
++		MEMORY=/memory
++		# Mountpoint for the changesdev
++		CHANGESMNT=$NEW_ROOT/mnt/changesdev
++		if [ -z "$UID" ]
++		then
++			CHANGES=$MEMORY/aufs_changes/default
++		else
++			CHANGES=$MEMORY/aufs_changes/$UID
++		fi
++
++		mkdir -p ${MEMORY}
++		mkdir -p ${UNION}
++		mkdir -p ${CHANGESMNT}
++		for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
++		do
++			mkdir -p "${NEW_ROOT}/${i}"
++			chmod 755 "${NEW_ROOT}/${i}"
++		done
++		[ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
++		[ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
++
++		bootstrapCD
++		if [ -n "${AUFS}" ]
++		then
++			if [ "${AUFS}" = "detect" ]
++			then
++				CHANGESMNT="${NEW_ROOT}/mnt/cdrom"
++				CHANGESDEV=${REAL_ROOT}
++			else
++				CHANGESDEV=${AUFS}
++				good_msg "mounting $CHANGESDEV to $MEMORY for aufs support"
++		#		mount -t auto $CHANGESDEV $MEMORY
++				mount -t auto $CHANGESDEV $CHANGESMNT
++				ret=$?
++				if [ "${ret}" -ne 0 ]
++				then
++					bad_msg "mount of $CHANGESDEV failed falling back to ramdisk based aufs"
++					unset AUFS
++				fi
++			fi
++			# Check and attempt to create the changesfile
++			if [ ! -e $CHANGESMNT/livecd.aufs ] && [ -n "${AUFS}" ]
++			then
++				create_changefs
++				mount -t auto $CHANGESMNT/livecd.aufs $MEMORY
++			elif [ -n "${AUFS}" ]
++			then
++				local nbpass=0
++				while [ 1 ]
++				do
++					mount -t auto $CHANGESMNT/livecd.aufs $MEMORY
++					ret=$?
++					if [ "${ret}" -ne 0 ]
++					then
++						if [ $nbpass -eq 0 ]
++						then
++							bad_msg "mounting of changes file failed, Running e2fsck"
++							e2fsck $CHANGESMNT/livecd.aufs
++							nbpass=$(($nbpass + 1))
++						else
++							bad_msg "mount of $CHANGESDEV failed falling back to ramdisk based aufs"
++							bad_msg "your livecd.aufs might be messed up, and I couldn't fix it"
++							bad_msg "moving livecd.aufs to livecd.aufs.bad"
++							mv $CHANGESMNT/livecd.aufs $CHANGESMNT/livecd.aufs.bad
++							bad_msg "try to fix it yourself with e2fsck later on, sorry for disturbing"
++							break
++						fi
++					else
++						if [ $nbpass -eq 1 ]
++						then
++							good_msg "e2fsck seemed successful. Please check your files after bootup"
++						fi
++						break
++					fi
++				done
++				if [ -f ${MEMORY}/.doclean.sh ]
++				then
++					good_msg "finishing the permanent changes cleanup"
++					. ${MEMORY}/.doclean.sh
++					rm ${MEMORY}/.doclean.sh
++				fi
++			fi
++			# mount tmpfs only in the case when changes= boot parameter was
++			# empty or we were not able to mount the storage device
++			if [ "${CDROOT}" -eq '1' -a ! -f ${CHANGESMNT}/livecd.aufs  ]
++			then
++				umount $MEMORY
++				bad_msg "failed to find livecd.aufs file on $CHANGESDEV"
++				bad_msg "create an ext2 livecd.aufs file on this device if you wish to use it for aufs"
++				bad_msg "falling back to ramdisk based aufs for safety"
++				mount -t tmpfs tmpfs $MEMORY
++				XINO=$MEMORY
++			else
++				XINO=$MEMORY/xino
++				mkdir -p $XINO
++				mount -t tmpfs tmpfs $XINO
++			fi
++		else
++			good_msg "Mounting ramdisk to $MEMORY for aufs support..."
++			mount -t tmpfs tmpfs $MEMORY
++			XINO=$MEMORY
++		fi 
++
++		mkdir -p $CHANGES
++		mount -t aufs -n -o nowarn_perm,udba=none,xino=$XINO/.aufs.xino,br:$CHANGES=rw aufs ${UNION}
++		ret=$?
++		if [ "${ret}" -ne 0 ]
++		then 
++			bad_msg "Can't setup union ${UNION} in directory!"
++			USE_AUFS_NORMAL=0
++		fi
++	else
++		USE_AUFS_NORMAL=0
++	fi
++}
++
+ findnfsmount() {
+ 	if [ "${IP}" != '' ] || busybox udhcpc -n -T 15 -q
+ 	then
+diff -Naur genkernel-3.4.30/defaults/linuxrc genkernel/defaults/linuxrc
+--- genkernel-3.4.30/defaults/linuxrc	2012-05-06 22:28:21.592425271 -0400
++++ genkernel/defaults/linuxrc	2012-05-06 22:52:33.523464151 -0400
+@@ -228,6 +228,38 @@
+ 		aufs)
+ 			USE_AUFS_NORMAL=1
+ 		;;
++		aufs\=*)
++			USE_AUFS_NORMAL=1
++			CMD_AUFS=`parse_opt "${x}"`
++			echo ${CMD_AUFS}|grep , >/dev/null 2>&1
++			if [ "$?" -eq '0' ]
++			then
++				UID=`echo ${CMD_AUFS#*,}`
++				AUFS=`echo ${CMD_AUFS%,*}`
++			else
++				AUFS=${CMD_AUFS}
++			fi
++		;;
++		changes\=*)
++			USE_AUFS_NORMAL=1
++			CMD_AUFS=`parse_opt "${x}"`
++			echo ${CMD_AUFS}|grep , >/dev/null 2>&1
++			if [ "$?" -eq '0' ]
++			then
++				UID=`echo ${CMD_AUFS#*,}`
++				AUFS=`echo ${CMD_AUFS%,*}`
++			else
++				AUFS=${CMD_AUFS}
++			fi
++		;;
++		persistent)
++			USE_AUFS_NORMAL=1
++			AUFS="detect"
++		;;
++		# Allow user to specify the modules location
++		modules\=*)
++			MODULESD=`parse_opt "${x}"`
++		;;
+ 		unionfs)
+ 			if [ ! -x /sbin/unionfs ]
+ 			then
+@@ -382,17 +414,28 @@
+ 
+ if [ "${CDROOT}" = '1' ]
+ then
+-	good_msg "Making tmpfs for ${NEW_ROOT}"
+-	mount -n -t tmpfs tmpfs "${NEW_ROOT}"
++	setup_aufs
++	setup_keymap
+ 
+-	for i in dev mnt mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
+-	do
+-		mkdir -p "${NEW_ROOT}/${i}"
+-		chmod 755 "${NEW_ROOT}/${i}"
+-	done
+-	[ ! -d "${CDROOT_PATH}" ] && mkdir -p "${CDROOT_PATH}"
+-	[ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
+-	[ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
++	# Run debug shell if requested
++	rundebugshell
++
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		CHROOT=${UNION}
++	else
++		CHROOT=${NEW_ROOT}
++		good_msg "Making tmpfs for ${NEW_ROOT}"
++		mount -t tmpfs tmpfs ${NEW_ROOT}
++
++		for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
++		do
++			mkdir -p "${NEW_ROOT}/${i}"
++			chmod 755 "${NEW_ROOT}/${i}"
++		done
++		[ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
++		[ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
++	fi
+ 
+ 	# For SGI LiveCDs ...
+ 	if [ "${LOOPTYPE}" = "sgimips" ]
+@@ -408,7 +451,7 @@
+ 		[ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
+ 	fi
+ 
+-	if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
++	if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ] && [ "${USE_AUFS_NORMAL}" != '1' ]
+ 	then
+ 		bootstrapCD
+ 	fi
+@@ -709,7 +752,23 @@
+ 		fi
+ 	fi
+ 
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		union_insert_dir ${UNION} ${NEW_ROOT}/${FS_LOCATION}
+ 
++		# Make sure fstab notes livecd is mounted ro.  Makes system skip remount which fails on aufs dirs.
++		sed -e 's|\(.*\s/\s*tmpfs\s*\)defaults\(.*\)|\1defaults,ro\2|' /${UNION}/etc/fstab > /${UNION}/etc/fstab.new
++		mv /${UNION}/etc/fstab.new /${UNION}/etc/fstab
++		warn_msg "Adding all modules in $MODULESD/modules/"
++		if [ "${MODULESD}" = "mnt/cdrom" ]
++		then
++			union_insert_modules mnt/cdrom
++		else
++			mkdir ${NEW_ROOT}/mnt/modulesd
++			mount "${MODULESD}" ${NEW_ROOT}/mnt/modulesd
++			union_insert_modules ${NEW_ROOT}/mnt/modulesd
++		fi
++	fi
+ 
+ 	# Unpacking additional packages from NFS mount
+ 	# This is useful for adding kernel modules to /lib
+@@ -732,57 +791,56 @@
+ 	then
+ 		setup_unionfs ${NEW_ROOT} /${FS_LOCATION}
+ 		CHROOT=/union
+-	elif [ "${USE_AUFS_NORMAL}" != '1' ]; then
+-
+-	good_msg "Copying read-write image contents to tmpfs"
+-	# Copy over stuff that should be writable
+-	(cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}") || {
+-		bad_msg "Copying failed, dropping into a shell."
+-		do_rundebugshell
+-	}
+-
+-	# Now we do the links.
+-	for x in ${ROOT_LINKS}
+-	do
+-		if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
++	else
++	#XXX this hunk confuses me more than a little and needs to be rewritten sanely
++		if [ ! "${USE_AUFS_NORMAL}" -eq '1' ]
+ 		then
+-			ln -s "$(readlink ${NEW_ROOT}/${FS_LOCATION}/${x})" "${x}" 2>/dev/null
+-		else
+-			# List all subdirectories of x
+-			find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
+-			do
+-				# Strip the prefix of the FS_LOCATION
+-				directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
++			good_msg "Copying read-write image contents to tmpfs"
++			# Copy over stuff that should be writable
++			(cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
+ 
+-				# Skip this directory if we already linked a parent directory
+-				if [ "${current_parent}" != '' ]; then
+-					var=$(echo "${directory}" | grep "^${current_parent}")
+-					if [ "${var}" != '' ]; then
+-						continue
+-					fi
+-				fi
+-				# Test if the directory exists already
+-				if [ -e "/${NEW_ROOT}/${directory}" ]
++			# Now we do the links.
++			for x in ${ROOT_LINKS}
++			do
++				if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
+ 				then
+-					# It does exist, link all the individual files
+-					for file in $(ls /${NEW_ROOT}/${FS_LOCATION}/${directory})
++					ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null
++				else
++					# List all subdirectories of x
++					find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
+ 					do
+-					if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
+-							ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
++						# Strip the prefix of the FS_LOCATION
++						directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
++
++						# Skip this directory if we already linked a parent directory
++						if [ "${current_parent}" != '' ]; then
++							var=`echo "${directory}" | grep "^${current_parent}"`
++							if [ "${var}" != '' ]; then
++								continue
++							fi
++						fi
++						# Test if the directory exists already
++						if [ -e "/${NEW_ROOT}/${directory}" ]
++						then
++							# It does exist, link all the individual files
++							for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}`
++							do
++								if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
++									ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
++							fi
++							done
++						else
++							# It does not exist, make a link to the livecd
++							ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
++							current_parent="${directory}"
+ 						fi
+ 					done
+-				else
+-					# It does not exist, make a link to the livecd
+-					ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
+-					current_parent="${directory}"
+ 				fi
+ 			done
++			mkdir initramfs proc tmp sys 2>/dev/null
++			chmod 1777 tmp
+ 		fi
+-	done
+-
+-	mkdir initramfs proc tmp sys 2>/dev/null
+-	chmod 1777 tmp
+-
++	#XXX: end extremely confusing hunk
+ 	fi
+ 
+ 	#UML=$(cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||')
+@@ -803,13 +861,18 @@
+ 		setup_unionfs /union_changes ${NEW_ROOT}
+ 		mkdir -p ${UNION}/tmp/.initrd
+ 	fi
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		union_insert_dir ${UNION} ${NEW_ROOT}
++		mkdir -p ${UNION}/tmp/.initrd
++	fi
+ fi
+ 
+ # Mount the additional things as required by udev & systemd
+ if [ -f ${NEW_ROOT}/etc/initramfs.mounts ]; then
+ 	fslist=$(get_mounts_list)
+ else
+-	fslist="/usr" 
++	fslist="/usr"
+ fi
+ 
+ for fs in $fslist; do
+@@ -842,6 +905,35 @@
+ 
+ verbose_kmsg
+ 
++if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++then
++	mkdir -p /${CHROOT}/.unions/memory 2>/dev/null
++	mount -o move /memory /${CHROOT}/.unions/memory || echo '*: Failed to move aufs /memory into the system root!'
++	for i in tmp var/tmp mnt/gentoo mnt/livecd
++	do
++		mkdir -p ${CHROOT}/$i
++		chmod 755 ${CHROOT}/$i
++	done
++	# This will prevent from putting junk on the CHANGESDEV
++	mkdir -p ${CHROOT}/usr/portage/distfiles
++	mount -t tmpfs tmpfs ${CHROOT}/var/tmp
++	mount -t tmpfs tmpfs ${CHROOT}/tmp
++	mount -t tmpfs tmpfs ${CHROOT}/usr/portage/distfiles
++	warn_msg "/tmp /var/tmp /usr/portage/distfiles are mounted in ram"
++	warn_msg "consider saving important files elsewhere..."
++	read -t 3 UNUSEDVAL
++	mount -o bind ${NEW_ROOT}/mnt/cdrom ${CHROOT}/mnt/cdrom
++	mount -o bind ${NEW_ROOT}/mnt/livecd ${CHROOT}/mnt/livecd
++	if [ -e $MEMORY/keyboard -a "${CDROOT}" -eq '1' ]
++	then
++		cp $MEMORY/keyboard ${CHROOT}/etc/sysconfig/keyboard
++	elif [ -e /etc/sysconfig/keyboard -a "${CDROOT}" -eq '1' ]
++	then
++		mkdir -p ${NEW_ROOT}/etc/sysconfig/
++		cp /etc/sysconfig/keyboard ${CHROOT}/etc/sysconfig/keyboard
++	fi
++fi
++
+ echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
+ 
+ cd "${CHROOT}"
+diff -Naur genkernel-3.4.30/gen_initramfs.sh genkernel/gen_initramfs.sh
+--- genkernel-3.4.30/gen_initramfs.sh	2012-05-06 22:28:21.596425271 -0400
++++ genkernel/gen_initramfs.sh	2012-05-06 22:29:10.619426583 -0400
+@@ -99,6 +99,24 @@
+ 	rm -rf "${TEMP}/initramfs-busybox-temp" > /dev/null
+ }
+ 
++# Used to add e2fs file making inside initramfs for aufs changes saving
++append_e2fstools(){
++	if [ -d "${TEMP}/initramfs-e2fsprogs-temp" ]
++	then
++		rm -r "${TEMP}/initramfs-e2fsprogs-temp/"
++	fi
++	print_info 1 'E2FSTOOLS: Adding support (compiling binaries)...'
++	# Using different name for blkid compatibility
++	compile_e2fstools
++	cd ${TEMP}
++	mkdir -p "${TEMP}/initramfs-e2fsprogs-temp/"
++	/bin/tar -jxpf "${E2FSPROGS_BINCACHE}" -C "${TEMP}/initramfs-e2fsprogs-temp/" ||
++		gen_die "Could not extract e2fsprogs binary cache!"
++	cd "${TEMP}/initramfs-e2fsprogs-temp/"
++	find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
++	rm -rf "${TEMP}/initramfs-e2fsprogs-temp" > /dev/null
++}
++
+ append_blkid(){
+ 	if [ -d "${TEMP}/initramfs-blkid-temp" ]
+ 	then
+@@ -544,6 +562,7 @@
+ 		rm -r "${TEMP}/initramfs-aux-temp/"
+ 	fi
+ 	mkdir -p "${TEMP}/initramfs-aux-temp/etc"
++	mkdir -p "${TEMP}/initramfs-aux-temp/bin"
+ 	mkdir -p "${TEMP}/initramfs-aux-temp/sbin"
+ 	if [ -f "${CMD_LINUXRC}" ]
+ 	then
+@@ -660,6 +679,7 @@
+ 	append_data 'base_layout'
+ 	append_data 'auxilary' "${BUSYBOX}"
+ 	append_data 'busybox' "${BUSYBOX}"
++	append_data 'e2fstools'
+ 	append_data 'lvm' "${LVM}"
+ 	append_data 'dmraid' "${DMRAID}"
+ 	append_data 'iscsi' "${ISCSI}"

sys-kernel/genkernel/files/aufs-new.diff

@@ -0,0 +1,520 @@
+diff -Naur genkernel-orig/defaults/initrd.defaults genkernel/defaults/initrd.defaults
+--- genkernel-orig/defaults/initrd.defaults	2012-05-05 22:03:33.670071698 -0400
++++ genkernel/defaults/initrd.defaults	2012-05-05 23:32:20.558214466 -0400
+@@ -73,6 +73,7 @@
+ NEW_ROOT='/newroot'
+ CDROOT_PATH='/mnt/cdrom'
+ CONSOLE='/dev/console'
++MODULESD="${CDROOT_PATH}"
+ 
+ LOOPS='/livecd.loop /zisofs /livecd.squashfs /image.squashfs /livecd.gcloop'
+ 
+diff -Naur genkernel-orig/defaults/initrd.scripts genkernel/defaults/initrd.scripts
+--- genkernel-orig/defaults/initrd.scripts	2012-05-05 22:03:33.670071698 -0400
++++ genkernel/defaults/initrd.scripts	2012-05-05 22:58:33.661160192 -0400
+@@ -201,6 +201,192 @@
+ 	[ ${ret} -eq 0 ] || bad_msg "Failed to mount /sys!"
+ }
+ 
++# Insert a directory tree $2 to an union specified by $1
++# Top-level read-write branch is specified by it's index 0
++# $1 = union absolute path (starting with /)
++# $2 = path to data directory
++#
++union_insert_dir() {
++	# Always mount it over the precedent (add:1:)
++	mount -n -o remount,add:1:$2=rr aufs $1
++	if [ $? = '0' ]
++	then
++		good_msg "Addition of $2 to $1 successful"
++	fi
++}
++
++# Insert all modules found in $1, usually mnt/cdrom
++# added to allow users to add their own apps.
++union_insert_modules() {
++	for module in `ls ${NEW_ROOT}/$1/modules/*.mo 2>/dev/null| sort`
++	do
++		mkdir -p ${MEMORY}/modules/`basename ${module} .mo`
++		union_insert_dir $UNION ${MEMORY}/modules/`basename ${module} .mo`
++	done
++	for module in `ls ${NEW_ROOT}/$1/modules/*.lzm 2>/dev/null| sort`
++	do
++		mkdir -p ${MEMORY}/modules/`basename ${module} .lzm`
++		mount -o loop,ro ${module} ${MEMORY}/modules/`basename ${module} .lzm`
++		union_insert_dir $UNION ${MEMORY}/modules/`basename ${module} .lzm`
++	done
++}
++
++# Function to create an ext2 fs on $CHANGESDEV, $CHANGESMNT mountpoint
++create_changefs() {
++	local size
++	while [ 1 ]
++	do
++		read -p '<< Size of file (Enter for default 256 Mb): ' size
++		if [ -z "$size" ]; then
++			let size=256
++		fi
++		let size="$size"
++		if [ $size -lt 16 ]
++		then
++			bad_msg "Please give a size of at least 16 Mb"
++		else
++			dd if=/dev/zero of=$CHANGESMNT/livecd.aufs bs=1M count=$size
++			if [ $? = '0' ]
++			then
++				good_msg "Creation of livecd.aufs, $size Mb on $CHANGESDEV successful, formatting it ext2"
++				mke2fs -F $CHANGESMNT/livecd.aufs
++				break
++			else
++				rm -f $CHANGESMNT/livecd.aufs
++				bad_msg "Unable to create livecd.aufs on $CHANGESDEV of $size Mb"
++				bad_msg "Please give a size of at least 16 Mb"
++				bad_msg "Also check if your disk is full or read-only ?"
++				read -p '<< Type "a" to abort, anything else to continue : ' doabort
++				if [ "$doabort" = "a" ]; then
++					return 1
++				fi
++			fi
++		fi
++	done
++	return 0
++}
++
++setup_aufs() {
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		# Directory used for rw changes in union mount filesystem
++		UNION=/union
++		MEMORY=/memory
++		# Mountpoint for the changesdev
++		CHANGESMNT=$NEW_ROOT/mnt/changesdev
++		if [ -z "$UID" ]
++		then
++			CHANGES=$MEMORY/aufs_changes/default
++		else
++			CHANGES=$MEMORY/aufs_changes/$UID
++		fi
++
++		mkdir -p ${MEMORY}
++		mkdir -p ${UNION}
++		mkdir -p ${CHANGESMNT}
++		for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
++		do
++			mkdir -p "${NEW_ROOT}/${i}"
++			chmod 755 "${NEW_ROOT}/${i}"
++		done
++		[ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
++		[ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
++
++		bootstrapCD
++		if [ -n "${AUFS}" ]
++		then
++			if [ "${AUFS}" = "detect" ]
++			then
++				CHANGESMNT="${NEW_ROOT}/mnt/cdrom"
++				CHANGESDEV=${REAL_ROOT}
++			else
++				CHANGESDEV=${AUFS}
++				good_msg "mounting $CHANGESDEV to $MEMORY for aufs support"
++		#		mount -t auto $CHANGESDEV $MEMORY
++				mount -t auto $CHANGESDEV $CHANGESMNT
++				ret=$?
++				if [ "${ret}" -ne 0 ]
++				then
++					bad_msg "mount of $CHANGESDEV failed falling back to ramdisk based aufs"
++					unset AUFS
++				fi
++			fi
++			# Check and attempt to create the changesfile
++			if [ ! -e $CHANGESMNT/livecd.aufs ] && [ -n "${AUFS}" ]
++			then
++				create_changefs
++				mount -t auto $CHANGESMNT/livecd.aufs $MEMORY
++			elif [ -n "${AUFS}" ]
++			then
++				local nbpass=0
++				while [ 1 ]
++				do
++					mount -t auto $CHANGESMNT/livecd.aufs $MEMORY
++					ret=$?
++					if [ "${ret}" -ne 0 ]
++					then
++						if [ $nbpass -eq 0 ]
++						then
++							bad_msg "mounting of changes file failed, Running e2fsck"
++							e2fsck $CHANGESMNT/livecd.aufs
++							nbpass=$(($nbpass + 1))
++						else
++							bad_msg "mount of $CHANGESDEV failed falling back to ramdisk based aufs"
++							bad_msg "your livecd.aufs might be messed up, and I couldn't fix it"
++							bad_msg "moving livecd.aufs to livecd.aufs.bad"
++							mv $CHANGESMNT/livecd.aufs $CHANGESMNT/livecd.aufs.bad
++							bad_msg "try to fix it yourself with e2fsck later on, sorry for disturbing"
++							break
++						fi
++					else
++						if [ $nbpass -eq 1 ]
++						then
++							good_msg "e2fsck seemed successful. Please check your files after bootup"
++						fi
++						break
++					fi
++				done
++				if [ -f ${MEMORY}/.doclean.sh ]
++				then
++					good_msg "finishing the permanent changes cleanup"
++					. ${MEMORY}/.doclean.sh
++					rm ${MEMORY}/.doclean.sh
++				fi
++			fi
++			# mount tmpfs only in the case when changes= boot parameter was
++			# empty or we were not able to mount the storage device
++			if [ "${CDROOT}" -eq '1' -a ! -f ${CHANGESMNT}/livecd.aufs  ]
++			then
++				umount $MEMORY
++				bad_msg "failed to find livecd.aufs file on $CHANGESDEV"
++				bad_msg "create an ext2 livecd.aufs file on this device if you wish to use it for aufs"
++				bad_msg "falling back to ramdisk based aufs for safety"
++				mount -t tmpfs tmpfs $MEMORY
++				XINO=$MEMORY
++			else
++				XINO=$MEMORY/xino
++				mkdir -p $XINO
++				mount -t tmpfs tmpfs $XINO
++			fi
++		else
++			good_msg "Mounting ramdisk to $MEMORY for aufs support..."
++			mount -t tmpfs tmpfs $MEMORY
++			XINO=$MEMORY
++		fi 
++
++		mkdir -p $CHANGES
++		mount -t aufs -n -o nowarn_perm,udba=none,xino=$XINO/.aufs.xino,br:$CHANGES=rw aufs ${UNION}
++		ret=$?
++		if [ "${ret}" -ne 0 ]
++		then 
++			bad_msg "Can't setup union ${UNION} in directory!"
++			USE_AUFS_NORMAL=0
++		fi
++	else
++		USE_AUFS_NORMAL=0
++	fi
++}
++
+ findnfsmount() {
+ 	if [ "${IP}" != '' ] || busybox udhcpc -n -T 15 -q
+ 	then
+diff -Naur genkernel-orig/defaults/linuxrc genkernel/defaults/linuxrc
+--- genkernel-orig/defaults/linuxrc	2012-05-05 22:03:33.670071698 -0400
++++ genkernel/defaults/linuxrc	2012-05-06 00:55:04.606347647 -0400
+@@ -220,6 +220,38 @@
+ 		aufs)
+ 			USE_AUFS_NORMAL=1
+ 		;;
++		aufs\=*)
++			USE_AUFS_NORMAL=1
++			CMD_AUFS=`parse_opt "${x}"`
++			echo ${CMD_AUFS}|grep , >/dev/null 2>&1
++			if [ "$?" -eq '0' ]
++			then
++				UID=`echo ${CMD_AUFS#*,}`
++				AUFS=`echo ${CMD_AUFS%,*}`
++			else
++				AUFS=${CMD_AUFS}
++			fi
++		;;
++		changes\=*)
++			USE_AUFS_NORMAL=1
++			CMD_AUFS=`parse_opt "${x}"`
++			echo ${CMD_AUFS}|grep , >/dev/null 2>&1
++			if [ "$?" -eq '0' ]
++			then
++				UID=`echo ${CMD_AUFS#*,}`
++				AUFS=`echo ${CMD_AUFS%,*}`
++			else
++				AUFS=${CMD_AUFS}
++			fi
++		;;
++		persistent)
++			USE_AUFS_NORMAL=1
++			AUFS="detect"
++		;;
++		# Allow user to specify the modules location
++		modules\=*)
++			MODULESD=`parse_opt "${x}"`
++		;;
+ 		unionfs)
+ 			if [ ! -x /sbin/unionfs ]
+ 			then
+@@ -346,17 +378,28 @@
+ 
+ if [ "${CDROOT}" = '1' ]
+ then
+-	good_msg "Making tmpfs for ${NEW_ROOT}"
+-	mount -n -t tmpfs tmpfs "${NEW_ROOT}"
++	setup_aufs
++	setup_keymap
+ 
+-	for i in dev mnt mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
+-	do
+-		mkdir -p "${NEW_ROOT}/${i}"
+-		chmod 755 "${NEW_ROOT}/${i}"
+-	done
+-	[ ! -d "${CDROOT_PATH}" ] && mkdir -p "${CDROOT_PATH}"
+-	[ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
+-	[ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
++	# Run debug shell if requested
++	rundebugshell
++
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		CHROOT=${UNION}
++	else
++		CHROOT=${NEW_ROOT}
++		good_msg "Making tmpfs for ${NEW_ROOT}"
++		mount -t tmpfs tmpfs ${NEW_ROOT}
++
++		for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
++		do
++			mkdir -p "${NEW_ROOT}/${i}"
++			chmod 755 "${NEW_ROOT}/${i}"
++		done
++		[ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
++		[ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
++	fi
+ 
+ 	# For SGI LiveCDs ...
+ 	if [ "${LOOPTYPE}" = "sgimips" ]
+@@ -372,7 +415,7 @@
+ 		[ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
+ 	fi
+ 
+-	if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
++	if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ] && [ "${USE_AUFS_NORMAL}" != '1' ]
+ 	then
+ 		bootstrapCD
+ 	fi
+@@ -608,7 +651,23 @@
+ 		fi
+ 	fi
+ 
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		union_insert_dir ${UNION} ${NEW_ROOT}/${FS_LOCATION}
+ 
++		# Make sure fstab notes livecd is mounted ro.  Makes system skip remount which fails on aufs dirs.
++		sed -e 's|\(.*\s/\s*tmpfs\s*\)defaults\(.*\)|\1defaults,ro\2|' /${UNION}/etc/fstab > /${UNION}/etc/fstab.new
++		mv /${UNION}/etc/fstab.new /${UNION}/etc/fstab
++		warn_msg "Adding all modules in $MODULESD/modules/"
++		if [ "${MODULESD}" = "mnt/cdrom" ]
++		then
++			union_insert_modules mnt/cdrom
++		else
++			mkdir ${NEW_ROOT}/mnt/modulesd
++			mount "${MODULESD}" ${NEW_ROOT}/mnt/modulesd
++			union_insert_modules ${NEW_ROOT}/mnt/modulesd
++		fi
++	fi
+ 
+ 	# Unpacking additional packages from NFS mount
+ 	# This is useful for adding kernel modules to /lib
+@@ -632,53 +691,57 @@
+ 		setup_unionfs ${NEW_ROOT} /${FS_LOCATION}
+ 		CHROOT=/union
+ 	elif [ "${USE_AUFS_NORMAL}" != '1' ]; then
++	#XXX the above line was added after my fork and confuses the hell out of me as it seems to have no fi
++	#XXX this hunk confuses me more than a little and needs to be rewritten sanely
+ 
+-	good_msg "Copying read-write image contents to tmpfs"
+-	# Copy over stuff that should be writable
+-	(cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
+-
+-	# Now we do the links.
+-	for x in ${ROOT_LINKS}
+-	do
+-		if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
++		if [ ! "${USE_AUFS_NORMAL}" -eq '1' ]
+ 		then
+-			ln -s "$(readlink ${NEW_ROOT}/${FS_LOCATION}/${x})" "${x}" 2>/dev/null
+-		else
+-			# List all subdirectories of x
+-			find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
+-			do
+-				# Strip the prefix of the FS_LOCATION
+-				directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
++			good_msg "Copying read-write image contents to tmpfs"
++			# Copy over stuff that should be writable
++			(cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
+ 
+-				# Skip this directory if we already linked a parent directory
+-				if [ "${current_parent}" != '' ]; then
+-					var=$(echo "${directory}" | grep "^${current_parent}")
+-					if [ "${var}" != '' ]; then
+-						continue
+-					fi
+-				fi
+-				# Test if the directory exists already
+-				if [ -e "/${NEW_ROOT}/${directory}" ]
++			# Now we do the links.
++			for x in ${ROOT_LINKS}
++			do
++				if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
+ 				then
+-					# It does exist, link all the individual files
+-					for file in $(ls /${NEW_ROOT}/${FS_LOCATION}/${directory})
++					ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null
++				else
++					# List all subdirectories of x
++					find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
+ 					do
+-					if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
+-							ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
++						# Strip the prefix of the FS_LOCATION
++						directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
++
++						# Skip this directory if we already linked a parent directory
++						if [ "${current_parent}" != '' ]; then
++							var=`echo "${directory}" | grep "^${current_parent}"`
++							if [ "${var}" != '' ]; then
++								continue
++							fi
++						fi
++						# Test if the directory exists already
++						if [ -e "/${NEW_ROOT}/${directory}" ]
++						then
++							# It does exist, link all the individual files
++							for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}`
++							do
++								if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
++									ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
++							fi
++							done
++						else
++							# It does not exist, make a link to the livecd
++							ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
++							current_parent="${directory}"
+ 						fi
+ 					done
+-				else
+-					# It does not exist, make a link to the livecd
+-					ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
+-					current_parent="${directory}"
+ 				fi
+ 			done
++			mkdir initramfs proc tmp sys 2>/dev/null
++			chmod 1777 tmp
++#XXX: end extremely confusing hunk
+ 		fi
+-	done
+-
+-	mkdir initramfs proc tmp sys 2>/dev/null
+-	chmod 1777 tmp
+-
+ 	fi
+ 
+ 	#UML=$(cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||')
+@@ -699,6 +762,11 @@
+ 		setup_unionfs /union_changes ${NEW_ROOT}
+ 		mkdir -p ${UNION}/tmp/.initrd
+ 	fi
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		union_insert_dir ${UNION} ${NEW_ROOT}
++		mkdir -p ${UNION}/tmp/.initrd
++	fi
+ fi
+ 
+ # Mount the additional things as required by udev & systemd
+@@ -734,6 +802,35 @@
+ 
+ verbose_kmsg
+ 
++if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++then
++	mkdir -p /${CHROOT}/.unions/memory 2>/dev/null
++	mount -o move /memory /${CHROOT}/.unions/memory || echo '*: Failed to move aufs /memory into the system root!'
++	for i in tmp var/tmp mnt/gentoo mnt/livecd
++	do
++		mkdir -p ${CHROOT}/$i
++		chmod 755 ${CHROOT}/$i
++	done
++	# This will prevent from putting junk on the CHANGESDEV
++	mkdir -p ${CHROOT}/usr/portage/distfiles
++	mount -t tmpfs tmpfs ${CHROOT}/var/tmp
++	mount -t tmpfs tmpfs ${CHROOT}/tmp
++	mount -t tmpfs tmpfs ${CHROOT}/usr/portage/distfiles
++	warn_msg "/tmp /var/tmp /usr/portage/distfiles are mounted in ram"
++	warn_msg "consider saving important files elsewhere..."
++	read -t 3 UNUSEDVAL
++	mount -o bind ${NEW_ROOT}/mnt/cdrom ${CHROOT}/mnt/cdrom
++	mount -o bind ${NEW_ROOT}/mnt/livecd ${CHROOT}/mnt/livecd
++	if [ -e $MEMORY/keyboard -a "${CDROOT}" -eq '1' ]
++	then
++		cp $MEMORY/keyboard ${CHROOT}/etc/sysconfig/keyboard
++	elif [ -e /etc/sysconfig/keyboard -a "${CDROOT}" -eq '1' ]
++	then
++		mkdir -p ${NEW_ROOT}/etc/sysconfig/
++		cp /etc/sysconfig/keyboard ${CHROOT}/etc/sysconfig/keyboard
++	fi
++fi
++
+ echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
+ 
+ cd "${CHROOT}"
+diff -Naur genkernel-orig/gen_initramfs.sh genkernel/gen_initramfs.sh
+--- genkernel-orig/gen_initramfs.sh	2012-05-05 22:03:33.674071708 -0400
++++ genkernel/gen_initramfs.sh	2012-05-05 23:53:17.352248333 -0400
+@@ -77,6 +77,24 @@
+ 	rm -rf "${TEMP}/initramfs-busybox-temp" > /dev/null
+ }
+ 
++# Used to add e2fs file making inside initramfs for aufs changes saving
++append_e2fstools(){
++	if [ -d "${TEMP}/initramfs-e2fsprogs-temp" ]
++	then
++		rm -r "${TEMP}/initramfs-e2fsprogs-temp/"
++	fi
++	print_info 1 'E2FSTOOLS: Adding support (compiling binaries)...'
++	# Using different name for blkid compatibility
++	compile_e2fstools
++	cd ${TEMP}
++	mkdir -p "${TEMP}/initramfs-e2fsprogs-temp/"
++	/bin/tar -jxpf "${E2FSPROGS_BINCACHE}" -C "${TEMP}/initramfs-e2fsprogs-temp/" ||
++		gen_die "Could not extract e2fsprogs binary cache!"
++	cd "${TEMP}/initramfs-e2fsprogs-temp/"
++	find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
++	rm -rf "${TEMP}/initramfs-e2fsprogs-temp" > /dev/null
++}
++
+ append_blkid(){
+ 	if [ -d "${TEMP}/initramfs-blkid-temp" ]
+ 	then
+@@ -528,6 +546,7 @@
+ 		rm -r "${TEMP}/initramfs-aux-temp/"
+ 	fi
+ 	mkdir -p "${TEMP}/initramfs-aux-temp/etc"
++	mkdir -p "${TEMP}/initramfs-aux-temp/bin"
+ 	mkdir -p "${TEMP}/initramfs-aux-temp/sbin"
+ 	if [ -f "${CMD_LINUXRC}" ]
+ 	then
+@@ -641,6 +660,7 @@
+ 	append_data 'base_layout'
+ 	append_data 'auxilary' "${BUSYBOX}"
+ 	append_data 'busybox' "${BUSYBOX}"
++	append_data 'e2fstools'
+ 	append_data 'lvm' "${LVM}"
+ 	append_data 'dmraid' "${DMRAID}"
+ 	append_data 'iscsi' "${ISCSI}"
+diff -Naur genkernel-3.4.18/genkernel.conf trunk/genkernel.conf
+--- genkernel-3.4.18/genkernel.conf     2012-03-24 23:23:39.479742473 -0400
++++ trunk/genkernel.conf       2011-10-16 21:32:05.000000000 -0400
+@@ -229,6 +229,7 @@ XXX: seperate patch for this
+ E2FSPROGS_VER="VERSION_E2FSPROGS"
+ E2FSPROGS_DIR="e2fsprogs-${E2FSPROGS_VER}"
+ E2FSPROGS_SRCTAR="${DISTDIR}/e2fsprogs-${E2FSPROGS_VER}.tar.gz"
++E2FSPROGS_BINCACHE="%%CACHE%%/e2fsprogs-${E2FSPROGS_VER}-%%ARCH%%.bz2"
+ BLKID_BINCACHE="%%CACHE%%/blkid-${E2FSPROGS_VER}-%%ARCH%%.bz2"
+ 
+ FUSE_VER="VERSION_FUSE"
+

sys-kernel/genkernel/files/aufs.diff

@@ -0,0 +1,572 @@
+diff -Naur '--exclude=.svn' '--exclude=.git' genkernel-3.4.18/defaults/initrd.defaults pentoo/genkernel/trunk/defaults/initrd.defaults
+--- genkernel-3.4.18/defaults/initrd.defaults	2012-03-24 23:23:39.476742487 -0400
++++ pentoo/genkernel/trunk/defaults/initrd.defaults	2011-10-16 21:32:06.000000000 -0400
+@@ -72,6 +72,7 @@
+ CDROOT_TYPE='auto'
+ NEW_ROOT='/newroot'
+ CONSOLE='/dev/console'
++MODULESD="mnt/cdrom"  #XXX sub CDROOT_PATH instead
+ 
+ LOOPS='/livecd.loop /zisofs /livecd.squashfs /image.squashfs /livecd.gcloop'
+ 
+diff -Naur '--exclude=.svn' '--exclude=.git' genkernel-3.4.18/defaults/initrd.scripts pentoo/genkernel/trunk/defaults/initrd.scripts
+--- genkernel-3.4.18/defaults/initrd.scripts	2012-03-24 23:23:39.476742487 -0400
++++ pentoo/genkernel/trunk/defaults/initrd.scripts	2012-02-03 00:03:57.395026177 -0500
+@@ -215,6 +217,193 @@
+ 	[ ${ret} -eq 0 ] || bad_msg "Failed to mount /sys!"
+ }
+ 
++# Insert a directory tree $2 to an union specified by $1
++# Top-level read-write branch is specified by it's index 0
++# $1 = union absolute path (starting with /)
++# $2 = path to data directory
++#
++union_insert_dir() {
++	# Always mount it over the precedent (add:1:)
++	mount -n -o remount,add:1:$2=rr aufs $1
++	if [ $? = '0' ]
++	then
++		good_msg "Addition of $2 to $1 successful"
++	fi
++}
++
++# Insert all modules found in $1, usually mnt/cdrom
++# added to allow users to add their own apps.
++union_insert_modules() {
++	for module in `ls ${NEW_ROOT}/$1/modules/*.mo 2>/dev/null| sort`
++	do
++		mkdir -p ${MEMORY}/modules/`basename ${module} .mo`
++		mount -o loop,ro ${module} ${MEMORY}/modules/`basename ${module} .mo`
++		union_insert_dir $UNION ${MEMORY}/modules/`basename ${module} .mo`
++	done
++	for module in `ls ${NEW_ROOT}/$1/modules/*.lzm 2>/dev/null| sort`
++	do
++		mkdir -p ${MEMORY}/modules/`basename ${module} .lzm`
++		mount -o loop,ro ${module} ${MEMORY}/modules/`basename ${module} .lzm`
++		union_insert_dir $UNION ${MEMORY}/modules/`basename ${module} .lzm`
++	done
++}
++
++# Function to create an ext2 fs on $CHANGESDEV, $CHANGESMNT mountpoint
++create_changefs() {
++	local size
++	while [ 1 ]
++	do
++		read -p '<< Size of file (Enter for default 256 Mb): ' size
++		if [ -z "$size" ]; then
++			let size=256
++		fi
++		let size="$size"
++		if [ $size -lt 16 ]
++		then
++			bad_msg "Please give a size of at least 16 Mb"
++		else
++			dd if=/dev/zero of=$CHANGESMNT/livecd.aufs bs=1M count=$size
++			if [ $? = '0' ]
++			then
++				good_msg "Creation of livecd.aufs, $size Mb on $CHANGESDEV successful, formatting it ext2"
++				mke2fs -F $CHANGESMNT/livecd.aufs
++				break
++			else
++				rm -f $CHANGESMNT/livecd.aufs
++				bad_msg "Unable to create livecd.aufs on $CHANGESDEV of $size Mb"
++				bad_msg "Please give a size of at least 16 Mb"
++				bad_msg "Also check if your disk is full or read-only ?"
++				read -p '<< Type "a" to abort, anything else to continue : ' doabort
++				if [ "$doabort" = "a" ]; then
++					return 1
++				fi
++			fi
++		fi
++	done
++	return 0
++}
++
++setup_aufs() {
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++ 	then
++		# Directory used for rw changes in union mount filesystem
++		UNION=/union
++		MEMORY=/memory
++		# Mountpoint for the changesdev
++		CHANGESMNT=$NEW_ROOT/mnt/changesdev
++		if [ -z "$UID" ]
++		then
++			CHANGES=$MEMORY/aufs_changes/default
++		else
++			CHANGES=$MEMORY/aufs_changes/$UID
++		fi
++
++		mkdir -p ${MEMORY}
++		mkdir -p ${UNION}
++		mkdir -p ${CHANGESMNT}
++		for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
++		do
++			mkdir -p "${NEW_ROOT}/${i}"
++			chmod 755 "${NEW_ROOT}/${i}"
++		done
++		[ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
++		[ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
++
++		bootstrapCD
++		if [ -n "${AUFS}" ]
++		then
++			if [ "${AUFS}" = "detect" ]
++			then
++				CHANGESMNT="${NEW_ROOT}/mnt/cdrom"
++				CHANGESDEV=${REAL_ROOT}
++			else
++				CHANGESDEV=${AUFS}
++				good_msg "mounting $CHANGESDEV to $MEMORY for aufs support"
++	#			mount -t auto $CHANGESDEV $MEMORY
++				mount -t auto $CHANGESDEV $CHANGESMNT
++				ret=$?
++				if [ "${ret}" -ne 0 ]
++				then
++					bad_msg "mount of $CHANGESDEV failed falling back to ramdisk based aufs"
++					unset AUFS
++				fi
++			fi
++			# Check and attempt to create the changesfile
++			if [ ! -e $CHANGESMNT/livecd.aufs ] && [ -n "${AUFS}" ]
++			then
++				create_changefs
++				mount -t auto $CHANGESMNT/livecd.aufs $MEMORY
++			elif [ -n "${AUFS}" ]
++			then
++				local nbpass=0
++				while [ 1 ]
++				do
++					mount -t auto $CHANGESMNT/livecd.aufs $MEMORY
++					ret=$?
++					if [ "${ret}" -ne 0 ]
++					then
++						if [ $nbpass -eq 0 ]
++						then
++							bad_msg "mounting of changes file failed, Running e2fsck"
++							e2fsck $CHANGESMNT/livecd.aufs
++							nbpass=$(($nbpass + 1))
++						else
++							bad_msg "mount of $CHANGESDEV failed falling back to ramdisk based aufs"
++							bad_msg "your livecd.aufs might be messed up, and I couldn't fix it"
++							bad_msg "moving livecd.aufs to livecd.aufs.bad"
++							mv $CHANGESMNT/livecd.aufs $CHANGESMNT/livecd.aufs.bad
++							bad_msg "try to fix it yourself with e2fsck later on, sorry for disturbing"
++							break
++						fi
++					else
++						if [ $nbpass -eq 1 ]
++						then
++							good_msg "e2fsck seemed successful. Please check your files after bootup"
++						fi
++						break
++					fi
++				done
++				if [ -f ${MEMORY}/.doclean.sh ]
++				then
++					good_msg "finishing the permanent changes cleanup"
++					. ${MEMORY}/.doclean.sh
++					rm ${MEMORY}/.doclean.sh
++				fi
++			fi
++			# mount tmpfs only in the case when changes= boot parameter was
++			# empty or we were not able to mount the storage device
++			if [ "${CDROOT}" -eq '1' -a ! -f ${CHANGESMNT}/livecd.aufs  ]
++			then
++				umount $MEMORY
++				bad_msg "failed to find livecd.aufs file on $CHANGESDEV"
++				bad_msg "create an ext2 livecd.aufs file on this device if you wish to use it for aufs"
++				bad_msg "falling back to ramdisk based aufs for safety"
++				mount -t tmpfs tmpfs $MEMORY
++				XINO=$MEMORY
++			else
++				XINO=$MEMORY/xino
++				mkdir -p $XINO
++				mount -t tmpfs tmpfs $XINO
++			fi
++		else 
++			good_msg "Mounting ramdisk to $MEMORY for aufs support..."
++			mount -t tmpfs tmpfs $MEMORY
++			XINO=$MEMORY
++		fi 
++
++		mkdir -p $CHANGES
++		mount -t aufs -n -o nowarn_perm,udba=none,xino=$XINO/.aufs.xino,br:$CHANGES=rw aufs ${UNION}
++		ret=$?
++		if [ "${ret}" -ne 0 ]
++		then 
++			bad_msg "Can't setup union ${UNION} in directory!"
++			USE_AUFS_NORMAL=0
++		fi
++	else
++		USE_AUFS_NORMAL=0
++	fi
++}
++
+ findnfsmount() {
+ 	if [ "${IP}" != '' ] || busybox udhcpc -n -T 15 -q
+ 	then
+@@ -510,7 +701,11 @@
+ }
+ 
+ setup_keymap() {
+XXX: needed?
+-	if [ "${DO_keymap}" ]
++	if [ -e $MEMORY/keyboard ]
++	then
++		. $MEMORY/keyboard
++		loadkmap < /lib/keymaps/${XKEYBOARD}.map
++	elif [ "${DO_keymap}" ]
+XXX: ask grimmlin
+ 	then
+ 		if [ ! -e /dev/vc/0 -a ! -e /dev/tty0 ]
+ 		then
+@@ -523,7 +718,10 @@
+ 
+ 		[ "${DEVBIND}" = '1' ] && umount /dev
+XXX: needed? 		
+-		if [ -e /etc/sysconfig/keyboard -a "${CDROOT}" = '1' ]
++		if [ -e /etc/sysconfig/keyboard -a "${USE_AUFS_NORMAL}" = '1' ]
++		then
++			cp /etc/sysconfig/keyboard $MEMORY
++		elif [ -e /etc/sysconfig/keyboard -a "${CDROOT}" = '1' ]
+XXX: ask grimmlin
+ 		then
+ 			mkdir -p ${NEW_ROOT}/etc/sysconfig/
+ 			cp /etc/sysconfig/keyboard ${NEW_ROOT}/etc/sysconfig/keyboard
+@@ -595,13 +794,15 @@
+ 	then
+ 		echo
+ 		good_msg "Keeping default keymap"
+ 		splash set_msg "Keeping default keymap"
+XXX: needed?
++		mkdir -p /etc/sysconfig
++		echo "XKEYBOARD=us" > /etc/sysconfig/keyboard
+XXX: ask grimmlin
+ 	else
+ 		bad_msg "Sorry, but keymap ''${keymap}'' is invalid!"
+ 		unset keymap
+diff -Naur '--exclude=.svn' '--exclude=.git' genkernel-3.4.18/defaults/linuxrc pentoo/genkernel/trunk/defaults/linuxrc
+--- genkernel-3.4.18/defaults/linuxrc	2012-03-24 23:23:39.476742487 -0400
++++ pentoo/genkernel/trunk/defaults/linuxrc	2011-10-16 21:32:06.000000000 -0400
+@@ -78,6 +78,41 @@
+ 		isoboot\=*)
+ 			ISOBOOT=`parse_opt "${x}"`
+ 		;;
++		aufs)
++			USE_AUFS_NORMAL=1
++		;;
++		aufs\=*)
++			USE_AUFS_NORMAL=1
++			CMD_AUFS=`parse_opt "${x}"`
++			echo ${CMD_AUFS}|grep , >/dev/null 2>&1
++			if [ "$?" -eq '0' ]
++			then
++				UID=`echo ${CMD_AUFS#*,}`
++				AUFS=`echo ${CMD_AUFS%,*}`
++			else
++				AUFS=${CMD_AUFS}
++			fi
++		;;
++		changes\=*)
++			USE_AUFS_NORMAL=1
++			CMD_AUFS=`parse_opt "${x}"`
++			echo ${CMD_AUFS}|grep , >/dev/null 2>&1
++			if [ "$?" -eq '0' ]
++			then
++				UID=`echo ${CMD_AUFS#*,}`
++				AUFS=`echo ${CMD_AUFS%,*}`
++			else
++				AUFS=${CMD_AUFS}
++			fi
++		;;
++		persistent)
++			USE_AUFS_NORMAL=1
++			AUFS="detect"
++		;;
++		# Allow user to specify the modules location
++		modules\=*)
++			MODULESD=`parse_opt "${x}"`
++      		;;
+ 		# Start Volume manager options 
+ 		dolvm)
+ 			USE_LVM_NORMAL=1
+@@ -350,23 +384,32 @@
+ fi
+ 
+ mkdir -p "${NEW_ROOT}"
+XXX: but why?
+-CHROOT="${NEW_ROOT}"
+-
+-# Run debug shell if requested
+-rundebugshell
++CHROOT=${NEW_ROOT}
+XXX: no reason at all
+ if [ "${CDROOT}" = '1' ]
+ then
+-	good_msg "Making tmpfs for ${NEW_ROOT}"
+-	mount -n -t tmpfs tmpfs "${NEW_ROOT}"
+-	
+-	for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
+-	do
+-		mkdir -p "${NEW_ROOT}/${i}"
+-		chmod 755 "${NEW_ROOT}/${i}"
+-	done
+-	[ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
+-	[ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
++	setup_aufs
++	setup_keymap
++ 
++	# Run debug shell if requested
++	rundebugshell
++
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		CHROOT=${UNION}
++	else
++		CHROOT=${NEW_ROOT}
++		good_msg "Making tmpfs for ${NEW_ROOT}"
++		mount -t tmpfs tmpfs ${NEW_ROOT}
++
++		for i in dev mnt mnt/cdrom mnt/livecd mnt/key tmp tmp/.initrd mnt/gentoo sys
++		do
++			mkdir -p "${NEW_ROOT}/${i}"
++			chmod 755 "${NEW_ROOT}/${i}"
++		done
++		[ ! -e "${NEW_ROOT}/dev/null" ] && mknod "${NEW_ROOT}"/dev/null c 1 3
++		[ ! -e "${NEW_ROOT}/dev/console" ] && mknod "${NEW_ROOT}"/dev/console c 5 1
++	fi
+ 
+ 	# For SGI LiveCDs ...
+ 	if [ "${LOOPTYPE}" = "sgimips" ]
+@@ -382,7 +425,7 @@
+ 		[ ! -e "${NEW_ROOT}/dev/tty1" ] && mknod "${NEW_ROOT}/dev/tty1" c 4 1
+ 	fi
+ 
+-	if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ]
++	if [ "${REAL_ROOT}" != "/dev/nfs" ] && [ "${LOOPTYPE}" != "sgimips" ] && [ "${USE_AUFS_NORMAL}" != '1' ]
+ 	then
+ 		bootstrapCD
+ 	fi
+@@ -613,7 +656,23 @@
+ 		fi
+ 	fi
+ 
+-
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		union_insert_dir ${UNION} ${NEW_ROOT}/${FS_LOCATION}
++		
++		# Make sure fstab notes livecd is mounted ro.  Makes system skip remount which fails on aufs dirs.
++		sed -e 's|\(.*\s/\s*tmpfs\s*\)defaults\(.*\)|\1defaults,ro\2|' /${UNION}/etc/fstab > /${UNION}/etc/fstab.new
++		mv /${UNION}/etc/fstab.new /${UNION}/etc/fstab
++		warn_msg "Adding all modules in $MODULESD/modules/"
++		if [ "${MODULESD}" = "mnt/cdrom" ]
++		then
++			union_insert_modules mnt/cdrom
++		else
++			mkdir ${NEW_ROOT}/mnt/modulesd
++			mount "${MODULESD}" ${NEW_ROOT}/mnt/modulesd
++			union_insert_modules ${NEW_ROOT}/mnt/modulesd
++		fi
++	fi
+ 
+ 	# Unpacking additional packages from NFS mount
+ 	# This is useful for adding kernel modules to /lib
+@@ -637,53 +696,54 @@
+ 		setup_unionfs ${NEW_ROOT} ${NEW_ROOT}/${FS_LOCATION}
+ 		CHROOT=/union
+ 	else
+-	
+-	good_msg "Copying read-write image contents to tmpfs"
+-	# Copy over stuff that should be writable
+-	(cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
+-
+-	# Now we do the links.
+-	for x in ${ROOT_LINKS}
+-	do
+-		if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
++		if [ ! "${USE_AUFS_NORMAL}" -eq '1' ]
+ 		then
+-			ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null
+-		else
+-			# List all subdirectories of x
+-			find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
+-			do
+-				# Strip the prefix of the FS_LOCATION
+-				directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
++			good_msg "Copying read-write image contents to tmpfs"
++			# Copy over stuff that should be writable
++			(cd "${NEW_ROOT}/${FS_LOCATION}"; cp -a ${ROOT_TREES} "${NEW_ROOT}")
+ 
+-				# Skip this directory if we already linked a parent directory
+-				if [ "${current_parent}" != '' ]; then
+-					var=`echo "${directory}" | grep "^${current_parent}"`
+-					if [ "${var}" != '' ]; then
+-						continue
+-					fi
+-				fi
+-				# Test if the directory exists already
+-				if [ -e "/${NEW_ROOT}/${directory}" ]
++			# Now we do the links.
++			for x in ${ROOT_LINKS}
++			do
++				if [ -L "${NEW_ROOT}/${FS_LOCATION}/${x}" ]
+ 				then
+-					# It does exist, link all the individual files
+-					for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}`
++					ln -s "`readlink ${NEW_ROOT}/${FS_LOCATION}/${x}`" "${x}" 2>/dev/null
++				else
++					# List all subdirectories of x
++					find "${NEW_ROOT}/${FS_LOCATION}/${x}" -type d 2>/dev/null | while read directory
+ 					do
+-					if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
+-							ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
++						# Strip the prefix of the FS_LOCATION
++						directory="${directory#${NEW_ROOT}/${FS_LOCATION}/}"
++	
++						# Skip this directory if we already linked a parent directory
++						if [ "${current_parent}" != '' ]; then
++							var=`echo "${directory}" | grep "^${current_parent}"`
++							if [ "${var}" != '' ]; then
++								continue
++							fi
++						fi
++						# Test if the directory exists already
++						if [ -e "/${NEW_ROOT}/${directory}" ]
++						then
++							# It does exist, link all the individual files
++							for file in `ls /${NEW_ROOT}/${FS_LOCATION}/${directory}`
++							do
++								if [ ! -d "/${NEW_ROOT}/${FS_LOCATION}/${directory}/${file}" ] && [ ! -e "${NEW_ROOT}/${directory}/${file}" ]; then
++									ln -s "/${FS_LOCATION}/${directory}/${file}" "${directory}/${file}" 2> /dev/null
++								fi
++							done
++						else
++							# It does not exist, make a link to the livecd
++							ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
++							current_parent="${directory}"
+ 						fi
+ 					done
+-				else
+-					# It does not exist, make a link to the livecd
+-					ln -s "/${FS_LOCATION}/${directory}" "${directory}" 2>/dev/null
+-					current_parent="${directory}"
+ 				fi
+ 			done
+-		fi
+-	done
+-
+-	mkdir initramfs proc tmp sys 2>/dev/null
+-	chmod 1777 tmp
+ 
++			mkdir initramfs proc tmp sys 2>/dev/null
++			chmod 1777 tmp
++		fi
+ 	fi
+ 
+ 	#UML=`cat /proc/cpuinfo|grep UML|sed -e 's|model name.*: ||'`
+@@ -704,6 +764,12 @@
+ 		setup_unionfs /union_changes ${NEW_ROOT}
+ 		mkdir -p ${UNION}/tmp/.initrd
+ 	fi
++
++	if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++	then
++		union_insert_dir ${UNION} ${NEW_ROOT}
++		mkdir -p ${UNION}/tmp/.initrd
++	fi
+ fi
+ 
+ # Execute script on the cdrom just before boot to update things if necessary
+@@ -717,6 +783,35 @@
+ 
+ verbose_kmsg
+ 
++if [ "${USE_AUFS_NORMAL}" -eq '1' ]
++then
++	mkdir -p /${CHROOT}/.unions/memory 2>/dev/null
++	mount -o move /memory /${CHROOT}/.unions/memory || echo '*: Failed to move aufs /memory into the system root!'
++	for i in tmp var/tmp mnt/gentoo mnt/livecd
++	do
++		mkdir -p ${CHROOT}/$i
++		chmod 755 ${CHROOT}/$i
++	done
++	# This will prevent from putting junk on the CHANGESDEV
++	mkdir -p ${CHROOT}/usr/portage/distfiles
++	mount -t tmpfs tmpfs ${CHROOT}/var/tmp
++	mount -t tmpfs tmpfs ${CHROOT}/tmp
++	mount -t tmpfs tmpfs ${CHROOT}/usr/portage/distfiles
++	warn_msg "/tmp /var/tmp /usr/portage/distfiles are mounted in ram"
++	warn_msg "consider saving important files elsewhere..."
++	read -t 3 UNUSEDVAL
++	mount -o bind ${NEW_ROOT}/mnt/cdrom ${CHROOT}/mnt/cdrom
++	mount -o bind ${NEW_ROOT}/mnt/livecd ${CHROOT}/mnt/livecd
++	if [ -e $MEMORY/keyboard -a "${CDROOT}" -eq '1' ]
++	then
++		cp $MEMORY/keyboard ${CHROOT}/etc/sysconfig/keyboard
++	elif [ -e /etc/sysconfig/keyboard -a "${CDROOT}" -eq '1' ]
++	then
++		mkdir -p ${NEW_ROOT}/etc/sysconfig/
++		cp /etc/sysconfig/keyboard ${CHROOT}/etc/sysconfig/keyboard
++	fi
++fi
++
+ echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
+ 
+ cd "${CHROOT}"
+diff -Naur '--exclude=.svn' '--exclude=.git' genkernel-3.4.18/gen_initramfs.sh pentoo/genkernel/trunk/gen_initramfs.sh
+--- genkernel-3.4.18/gen_initramfs.sh	2012-03-24 23:23:39.478742478 -0400
++++ pentoo/genkernel/trunk/gen_initramfs.sh	2011-10-16 21:32:05.000000000 -0400
+@@ -69,6 +69,24 @@
+ 	rm -rf "${TEMP}/initramfs-busybox-temp" > /dev/null
+ }
+ 
++# Used to add e2fs file making inside initramfs for aufs changes saving
++append_e2fstools(){
++	if [ -d "${TEMP}/initramfs-e2fsprogs-temp" ]
++	then
++		rm -r "${TEMP}/initramfs-e2fsprogs-temp/"
++	fi
++	print_info 1 'E2FSTOOLS: Adding support (compiling binaries)...'
++	# Using different name for blkid compatibility
++	compile_e2fstools
++	cd ${TEMP}
++	mkdir -p "${TEMP}/initramfs-e2fsprogs-temp/"
++	/bin/tar -jxpf "${E2FSPROGS_BINCACHE}" -C "${TEMP}/initramfs-e2fsprogs-temp/" ||
++		gen_die "Could not extract e2fsprogs binary cache!"
++	cd "${TEMP}/initramfs-e2fsprogs-temp/"
++	find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
++	rm -rf "${TEMP}/initramfs-e2fsprogs-temp" > /dev/null
++}
++
+ append_blkid(){
+ 	if [ -d "${TEMP}/initramfs-blkid-temp" ]
+ 	then
+@@ -507,6 +525,7 @@
+ 		rm -r "${TEMP}/initramfs-aux-temp/"
+ 	fi
+ 	mkdir -p "${TEMP}/initramfs-aux-temp/etc"	
++	mkdir -p "${TEMP}/initramfs-aux-temp/bin"	
+ 	mkdir -p "${TEMP}/initramfs-aux-temp/sbin"	
+ 	if [ -f "${CMD_LINUXRC}" ]
+ 	then
+@@ -620,6 +639,7 @@
+ 	append_data 'base_layout'
+ 	append_data 'auxilary' "${BUSYBOX}"
+ 	append_data 'busybox' "${BUSYBOX}"
++	append_data 'e2fstools'
+ 	append_data 'lvm' "${LVM}"
+ 	append_data 'dmraid' "${DMRAID}"
+ 	append_data 'iscsi' "${ISCSI}"
+diff -Naur '--exclude=.svn' '--exclude=.git' genkernel-3.4.18/genkernel.conf pentoo/genkernel/trunk/genkernel.conf
+--- genkernel-3.4.18/genkernel.conf	2012-03-24 23:23:39.479742473 -0400
++++ pentoo/genkernel/trunk/genkernel.conf	2011-10-16 21:32:05.000000000 -0400
+@@ -229,6 +229,7 @@ XXX: seperate patch for this
+ E2FSPROGS_VER="VERSION_E2FSPROGS"
+ E2FSPROGS_DIR="e2fsprogs-${E2FSPROGS_VER}"
+ E2FSPROGS_SRCTAR="${DISTDIR}/e2fsprogs-${E2FSPROGS_VER}.tar.gz"
++E2FSPROGS_BINCACHE="%%CACHE%%/e2fsprogs-${E2FSPROGS_VER}-%%ARCH%%.bz2"
+ BLKID_BINCACHE="%%CACHE%%/blkid-${E2FSPROGS_VER}-%%ARCH%%.bz2"
+ 
+ FUSE_VER="VERSION_FUSE"

sys-kernel/genkernel/files/initramfs.mounts

@@ -0,0 +1,23 @@
+# This specifies which mounts from your fstab should be mounted before
+# switching to the real root. If this file is missing, genkernel's code will
+# default to just "/usr", which will suffice on most systems with a seperate
+# /usr mount.
+#
+# If you have a complex configuration with a bindmount or symlink at /usr, or
+# need some other mountpoints at boot, you should update this file such that
+# /usr and anything else needed will be available after the switch into the
+# real root.
+#
+# The lines without comments in this file are used as exact matches against the
+# second column of your /etc/fstab and the device, fstype and mount options are
+# taken from that line in fstab. If no line matches, the line from this file
+# will be ignored.
+#
+
+/usr
+
+# If you had some need of these:
+#/usr/local
+#/opt
+#/var
+#/home

sys-kernel/genkernel/genkernel-3.4.24.ebuild

@@ -0,0 +1,156 @@
+# Copyright 1999-2012 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-kernel/genkernel/genkernel-3.4.24.ebuild,v 1.1 2012/01/24 23:30:18 sping Exp $
+
+# genkernel-9999        -> latest Git branch "master"
+# genkernel-VERSION     -> normal genkernel release
+
+VERSION_BUSYBOX='1.19.3'
+VERSION_DMAP='1.02.22'
+VERSION_DMRAID='1.0.0.rc14'
+VERSION_MDADM='3.1.5'
+VERSION_E2FSPROGS='1.42'
+VERSION_FUSE='2.8.6'
+VERSION_ISCSI='2.0-872'
+VERSION_LVM='2.02.88'
+VERSION_UNIONFS_FUSE='0.24'
+VERSION_GPG='1.4.11'
+
+MY_HOME="http://wolf31o2.org"
+RH_HOME="ftp://sources.redhat.com/pub"
+DM_HOME="http://people.redhat.com/~heinzm/sw/dmraid/src"
+BB_HOME="http://www.busybox.net/downloads"
+
+COMMON_URI="${DM_HOME}/dmraid-${VERSION_DMRAID}.tar.bz2
+		${DM_HOME}/old/dmraid-${VERSION_DMRAID}.tar.bz2
+		mirror://kernel/linux/utils/raid/mdadm/mdadm-${VERSION_MDADM}.tar.bz2
+		${RH_HOME}/lvm2/LVM2.${VERSION_LVM}.tgz
+		${RH_HOME}/lvm2/old/LVM2.${VERSION_LVM}.tgz
+		${RH_HOME}/dm/device-mapper.${VERSION_DMAP}.tgz
+		${RH_HOME}/dm/old/device-mapper.${VERSION_DMAP}.tgz
+		${BB_HOME}/busybox-${VERSION_BUSYBOX}.tar.bz2
+		mirror://kernel/linux/kernel/people/mnc/open-iscsi/releases/open-iscsi-${VERSION_ISCSI}.tar.gz
+		mirror://sourceforge/e2fsprogs/e2fsprogs-${VERSION_E2FSPROGS}.tar.gz
+		mirror://sourceforge/fuse/fuse-${VERSION_FUSE}.tar.gz
+		http://podgorny.cz/unionfs-fuse/releases/unionfs-fuse-${VERSION_UNIONFS_FUSE}.tar.bz2
+		mirror://gnupg/gnupg/gnupg-${VERSION_GPG}.tar.bz2"
+
+if [[ ${PV} == 9999* ]]
+then
+	EGIT_REPO_URI="git://git.overlays.gentoo.org/proj/${PN}.git
+		http://git.overlays.gentoo.org/gitroot/proj/${PN}.git"
+	inherit git-2 bash-completion eutils
+	S="${WORKDIR}/${PN}"
+	SRC_URI="${COMMON_URI}"
+	KEYWORDS=""
+else
+	inherit bash-completion eutils
+	SRC_URI="mirror://gentoo/${P}.tar.bz2
+		${MY_HOME}/sources/genkernel/${P}.tar.bz2
+		${COMMON_URI}"
+	# Please don't touch individual KEYWORDS.  Since this is maintained/tested by
+	# Release Engineering, it's easier for us to deal with all arches at once.
+	KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86"
+fi
+
+DESCRIPTION="Gentoo automatic kernel building scripts"
+HOMEPAGE="http://www.gentoo.org"
+
+LICENSE="GPL-2"
+SLOT="0"
+RESTRICT=""
+IUSE="ibm pentoo selinux"
+
+DEPEND="sys-fs/e2fsprogs
+	selinux? ( sys-libs/libselinux )"
+RDEPEND="${DEPEND} app-arch/cpio"
+
+if [[ ${PV} == 9999* ]]; then
+	DEPEND="${DEPEND} app-text/asciidoc"
+fi
+
+src_unpack() {
+	if [[ ${PV} == 9999* ]] ; then
+		git-2_src_unpack
+	else
+		unpack ${P}.tar.bz2
+	fi
+	use selinux && sed -i 's/###//g' "${S}"/gen_compile.sh
+	use pentoo && cd "${S}"
+	use pentoo && epatch "${FILESDIR}"/aufs-new.diff
+}
+
+src_compile() {
+	if [[ ${PV} == 9999* ]]; then
+		emake || die
+	fi
+}
+
+src_install() {
+	# This block updates genkernel.conf
+	sed \
+		-e "s:VERSION_BUSYBOX:$VERSION_BUSYBOX:" \
+		-e "s:VERSION_DMAP:$VERSION_DMAP:" \
+		-e "s:VERSION_MDADM:$VERSION_MDADM:" \
+		-e "s:VERSION_DMRAID:$VERSION_DMRAID:" \
+		-e "s:VERSION_E2FSPROGS:$VERSION_E2FSPROGS:" \
+		-e "s:VERSION_FUSE:$VERSION_FUSE:" \
+		-e "s:VERSION_ISCSI:$VERSION_ISCSI:" \
+		-e "s:VERSION_LVM:$VERSION_LVM:" \
+		-e "s:VERSION_UNIONFS_FUSE:$VERSION_UNIONFS_FUSE:" \
+		-e "s:VERSION_GPG:$VERSION_GPG:" \
+		"${S}"/genkernel.conf > "${T}"/genkernel.conf \
+		|| die "Could not adjust versions"
+	insinto /etc
+	doins "${T}"/genkernel.conf || die "doins genkernel.conf"
+
+	doman genkernel.8 || die "doman"
+	dodoc AUTHORS ChangeLog README TODO || die "dodoc"
+
+	dobin genkernel || die "dobin genkernel"
+
+	rm -f genkernel genkernel.8 AUTHORS ChangeLog README TODO genkernel.conf
+
+	insinto /usr/share/genkernel
+	doins -r "${S}"/* || die "doins"
+	use ibm && cp "${S}"/ppc64/kernel-2.6-pSeries "${S}"/ppc64/kernel-2.6 || \
+		cp "${S}"/arch/ppc64/kernel-2.6.g5 "${S}"/arch/ppc64/kernel-2.6
+
+	# Copy files to /var/cache/genkernel/src
+	elog "Copying files to /var/cache/genkernel/src..."
+	mkdir -p "${D}"/var/cache/genkernel/src
+	cp -f \
+		"${DISTDIR}"/mdadm-${VERSION_MDADM}.tar.bz2 \
+		"${DISTDIR}"/dmraid-${VERSION_DMRAID}.tar.bz2 \
+		"${DISTDIR}"/LVM2.${VERSION_LVM}.tgz \
+		"${DISTDIR}"/device-mapper.${VERSION_DMAP}.tgz \
+		"${DISTDIR}"/e2fsprogs-${VERSION_E2FSPROGS}.tar.gz \
+		"${DISTDIR}"/busybox-${VERSION_BUSYBOX}.tar.bz2 \
+		"${DISTDIR}"/fuse-${VERSION_FUSE}.tar.gz \
+		"${DISTDIR}"/unionfs-fuse-${VERSION_UNIONFS_FUSE}.tar.bz2 \
+		"${DISTDIR}"/gnupg-${VERSION_GPG}.tar.bz2 \
+		"${DISTDIR}"/open-iscsi-${VERSION_ISCSI}.tar.gz \
+		"${D}"/var/cache/genkernel/src || die "Copying distfiles..."
+
+	dobashcompletion "${FILESDIR}"/genkernel.bash
+}
+
+pkg_postinst() {
+	echo
+	elog 'Documentation is available in the genkernel manual page'
+	elog 'as well as the following URL:'
+	echo
+	elog 'http://www.gentoo.org/doc/en/genkernel.xml'
+	echo
+	ewarn "This package is known to not work with reiser4.  If you are running"
+	ewarn "reiser4 and have a problem, do not file a bug.  We know it does not"
+	ewarn "work and we don't plan on fixing it since reiser4 is the one that is"
+	ewarn "broken in this regard.  Try using a sane filesystem like ext3 or"
+	ewarn "even reiser3."
+	echo
+	ewarn "The LUKS support has changed from versions prior to 3.4.4.  Now,"
+	ewarn "you use crypt_root=/dev/blah instead of real_root=luks:/dev/blah."
+	echo
+
+	bash-completion_pkg_postinst
+}

sys-kernel/genkernel/genkernel-3.4.30.ebuild

@@ -0,0 +1,167 @@
+# Copyright 1999-2012 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-kernel/genkernel/genkernel-3.4.30.ebuild,v 1.2 2012/05/03 22:26:18 sping Exp $
+
+# genkernel-9999        -> latest Git branch "master"
+# genkernel-VERSION     -> normal genkernel release
+
+EAPI="3"
+
+VERSION_BUSYBOX='1.19.3'
+VERSION_DMRAID='1.0.0.rc16-3'
+VERSION_MDADM='3.1.5'
+VERSION_E2FSPROGS='1.42'
+VERSION_FUSE='2.8.6'
+VERSION_ISCSI='2.0-872'
+VERSION_LVM='2.02.88'
+VERSION_UNIONFS_FUSE='0.24'
+VERSION_GPG='1.4.11'
+
+MY_HOME="http://wolf31o2.org"
+RH_HOME="ftp://sources.redhat.com/pub"
+DM_HOME="http://people.redhat.com/~heinzm/sw/dmraid/src"
+BB_HOME="http://www.busybox.net/downloads"
+
+COMMON_URI="${DM_HOME}/dmraid-${VERSION_DMRAID}.tar.bz2
+		${DM_HOME}/old/dmraid-${VERSION_DMRAID}.tar.bz2
+		mirror://kernel/linux/utils/raid/mdadm/mdadm-${VERSION_MDADM}.tar.bz2
+		${RH_HOME}/lvm2/LVM2.${VERSION_LVM}.tgz
+		${RH_HOME}/lvm2/old/LVM2.${VERSION_LVM}.tgz
+		${BB_HOME}/busybox-${VERSION_BUSYBOX}.tar.bz2
+		mirror://kernel/linux/kernel/people/mnc/open-iscsi/releases/open-iscsi-${VERSION_ISCSI}.tar.gz
+		mirror://sourceforge/e2fsprogs/e2fsprogs-${VERSION_E2FSPROGS}.tar.gz
+		mirror://sourceforge/fuse/fuse-${VERSION_FUSE}.tar.gz
+		http://podgorny.cz/unionfs-fuse/releases/unionfs-fuse-${VERSION_UNIONFS_FUSE}.tar.bz2
+		mirror://gnupg/gnupg/gnupg-${VERSION_GPG}.tar.bz2"
+
+if [[ ${PV} == 9999* ]]
+then
+	EGIT_REPO_URI="git://git.overlays.gentoo.org/proj/${PN}.git
+		http://git.overlays.gentoo.org/gitroot/proj/${PN}.git"
+	inherit git-2 bash-completion eutils
+	S="${WORKDIR}/${PN}"
+	SRC_URI="${COMMON_URI}"
+	KEYWORDS=""
+else
+	inherit bash-completion eutils
+	SRC_URI="mirror://gentoo/${P}.tar.bz2
+		${MY_HOME}/sources/genkernel/${P}.tar.bz2
+		${COMMON_URI}"
+	# Please don't touch individual KEYWORDS.  Since this is maintained/tested by
+	# Release Engineering, it's easier for us to deal with all arches at once.
+	KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86"
+fi
+
+DESCRIPTION="Gentoo automatic kernel building scripts"
+HOMEPAGE="http://www.gentoo.org"
+
+LICENSE="GPL-2"
+SLOT="0"
+RESTRICT=""
+IUSE="crypt cryptsetup ibm pentoo selinux"  # Keep 'crypt' in to keep 'use crypt' below working!
+
+DEPEND="sys-fs/e2fsprogs
+	selinux? ( sys-libs/libselinux )"
+RDEPEND="${DEPEND}
+		cryptsetup? ( sys-fs/cryptsetup )
+		app-arch/cpio
+		app-misc/pax-utils
+		!<sys-apps/openrc-0.9.9"
+# pax-utils is used for lddtree
+
+if [[ ${PV} == 9999* ]]; then
+	DEPEND="${DEPEND} app-text/asciidoc"
+fi
+
+src_unpack() {
+	if [[ ${PV} == 9999* ]] ; then
+		git-2_src_unpack
+	else
+		unpack ${P}.tar.bz2
+	fi
+	use selinux && sed -i 's/###//g' "${S}"/gen_compile.sh
+	use pentoo && cd "${S}"
+	use pentoo && epatch "${FILESDIR}"/aufs-correct.diff
+}
+
+src_compile() {
+	if [[ ${PV} == 9999* ]]; then
+		emake || die
+	fi
+}
+
+src_install() {
+	# This block updates genkernel.conf
+	sed \
+		-e "s:VERSION_BUSYBOX:$VERSION_BUSYBOX:" \
+		-e "s:VERSION_MDADM:$VERSION_MDADM:" \
+		-e "s:VERSION_DMRAID:$VERSION_DMRAID:" \
+		-e "s:VERSION_E2FSPROGS:$VERSION_E2FSPROGS:" \
+		-e "s:VERSION_FUSE:$VERSION_FUSE:" \
+		-e "s:VERSION_ISCSI:$VERSION_ISCSI:" \
+		-e "s:VERSION_LVM:$VERSION_LVM:" \
+		-e "s:VERSION_UNIONFS_FUSE:$VERSION_UNIONFS_FUSE:" \
+		-e "s:VERSION_GPG:$VERSION_GPG:" \
+		"${S}"/genkernel.conf > "${T}"/genkernel.conf \
+		|| die "Could not adjust versions"
+	insinto /etc
+	doins "${T}"/genkernel.conf || die "doins genkernel.conf"
+
+	doman genkernel.8 || die "doman"
+	dodoc AUTHORS ChangeLog README TODO || die "dodoc"
+
+	dobin genkernel || die "dobin genkernel"
+
+	rm -f genkernel genkernel.8 AUTHORS ChangeLog README TODO genkernel.conf
+
+	insinto /usr/share/genkernel
+	doins -r "${S}"/* || die "doins"
+	use ibm && cp "${S}"/ppc64/kernel-2.6-pSeries "${S}"/ppc64/kernel-2.6 || \
+		cp "${S}"/arch/ppc64/kernel-2.6.g5 "${S}"/arch/ppc64/kernel-2.6
+
+	# Copy files to /var/cache/genkernel/src
+	elog "Copying files to /var/cache/genkernel/src..."
+	mkdir -p "${D}"/var/cache/genkernel/src
+	cp -f \
+		"${DISTDIR}"/mdadm-${VERSION_MDADM}.tar.bz2 \
+		"${DISTDIR}"/dmraid-${VERSION_DMRAID}.tar.bz2 \
+		"${DISTDIR}"/LVM2.${VERSION_LVM}.tgz \
+		"${DISTDIR}"/e2fsprogs-${VERSION_E2FSPROGS}.tar.gz \
+		"${DISTDIR}"/busybox-${VERSION_BUSYBOX}.tar.bz2 \
+		"${DISTDIR}"/fuse-${VERSION_FUSE}.tar.gz \
+		"${DISTDIR}"/unionfs-fuse-${VERSION_UNIONFS_FUSE}.tar.bz2 \
+		"${DISTDIR}"/gnupg-${VERSION_GPG}.tar.bz2 \
+		"${DISTDIR}"/open-iscsi-${VERSION_ISCSI}.tar.gz \
+		"${D}"/var/cache/genkernel/src || die "Copying distfiles..."
+
+	dobashcompletion "${FILESDIR}"/genkernel.bash
+	insinto /etc
+	doins "${FILESDIR}"/initramfs.mounts
+}
+
+pkg_postinst() {
+	echo
+	elog 'Documentation is available in the genkernel manual page'
+	elog 'as well as the following URL:'
+	echo
+	elog 'http://www.gentoo.org/doc/en/genkernel.xml'
+	echo
+	ewarn "This package is known to not work with reiser4.  If you are running"
+	ewarn "reiser4 and have a problem, do not file a bug.  We know it does not"
+	ewarn "work and we don't plan on fixing it since reiser4 is the one that is"
+	ewarn "broken in this regard.  Try using a sane filesystem like ext3 or"
+	ewarn "even reiser3."
+	echo
+	ewarn "The LUKS support has changed from versions prior to 3.4.4.  Now,"
+	ewarn "you use crypt_root=/dev/blah instead of real_root=luks:/dev/blah."
+	echo
+	if use crypt && ! use cryptsetup ; then
+		ewarn "Local use flag 'crypt' has been renamed to 'cryptsetup' (bug #414523)."
+		ewarn "Please set flag 'cryptsetup' for this very package if you would like"
+		ewarn "to have genkernel create an initramfs with LUKS support."
+		ewarn "Sorry for the inconvenience."
+		echo
+	fi
+
+	bash-completion_pkg_postinst
+}

sys-kernel/genkernel/genkernel-9999.2998.ebuild

@@ -0,0 +1,151 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-kernel/genkernel/genkernel-3.4.16.ebuild,v 1.7 2011/10/03 19:47:58 josejx Exp $
+
+# genkernel-9999        -> latest Git branch "master"
+# genkernel-VERSION     -> normal genkernel release
+
+VERSION_BUSYBOX='1.19.3'
+VERSION_DMAP='1.02.22'
+VERSION_DMRAID='1.0.0.rc14'
+VERSION_MDADM='3.1.4'
+VERSION_E2FSPROGS='1.41.14'
+VERSION_FUSE='2.7.4'
+VERSION_ISCSI='2.0-872'
+VERSION_LVM='2.02.74'
+VERSION_UNIONFS_FUSE='0.22'
+VERSION_GPG='1.4.11'
+
+MY_HOME="http://wolf31o2.org"
+RH_HOME="ftp://sources.redhat.com/pub"
+DM_HOME="http://people.redhat.com/~heinzm/sw/dmraid/src"
+BB_HOME="http://www.busybox.net/downloads"
+
+COMMON_URI="${DM_HOME}/dmraid-${VERSION_DMRAID}.tar.bz2
+		${DM_HOME}/old/dmraid-${VERSION_DMRAID}.tar.bz2
+		mirror://kernel/linux/utils/raid/mdadm/mdadm-${VERSION_MDADM}.tar.bz2
+		${RH_HOME}/lvm2/LVM2.${VERSION_LVM}.tgz
+		${RH_HOME}/lvm2/old/LVM2.${VERSION_LVM}.tgz
+		${RH_HOME}/dm/device-mapper.${VERSION_DMAP}.tgz
+		${RH_HOME}/dm/old/device-mapper.${VERSION_DMAP}.tgz
+		${BB_HOME}/busybox-${VERSION_BUSYBOX}.tar.bz2
+		mirror://kernel/linux/kernel/people/mnc/open-iscsi/releases/open-iscsi-${VERSION_ISCSI}.tar.gz
+		mirror://sourceforge/e2fsprogs/e2fsprogs-${VERSION_E2FSPROGS}.tar.gz
+		mirror://sourceforge/fuse/fuse-${VERSION_FUSE}.tar.gz
+		http://podgorny.cz/unionfs-fuse/releases/unionfs-fuse-${VERSION_UNIONFS_FUSE}.tar.bz2
+		mirror://gnupg/gnupg/gnupg-${VERSION_GPG}.tar.bz2"
+
+
+if [[ ${PV} == 9999* ]]
+then
+	[[ ${PV} == 9999.* ]] && ESVN_UPDATE_CMD="svn up -r ${PV/9999./}"
+	ESVN_REPO_URI="https://pentoo.googlecode.com/svn/genkernel/trunk"
+	inherit subversion bash-completion eutils
+	S=${WORKDIR}/trunk
+	SRC_URI="${COMMON_URI}"
+else
+	inherit bash-completion eutils
+	SRC_URI="${MY_HOME}/genkernel/${P}.tar.bz2
+		${COMMON_URI}"
+fi
+
+DESCRIPTION="Gentoo automatic kernel building scripts with pentoo patches"
+HOMEPAGE="http://trac.pentoo.ch/wiki/Genkernel"
+
+LICENSE="GPL-2"
+SLOT="0"
+RESTRICT=""
+IUSE="ibm selinux"
+KEYWORDS="-*"
+
+DEPEND="sys-fs/e2fsprogs
+	selinux? ( sys-libs/libselinux )"
+RDEPEND="${DEPEND} app-arch/cpio"
+
+if [[ ${PV} == 9999* ]]; then
+	DEPEND="${DEPEND} app-text/asciidoc"
+fi
+
+src_unpack() {
+	if [[ ${PV} == 9999* ]] ; then
+		subversion_src_unpack
+	else
+		unpack ${P}.tar.bz2
+	fi
+	use selinux && sed -i 's/###//g' "${S}"/gen_compile.sh
+}
+
+src_compile() {
+	if [[ ${PV} == 9999* ]]; then
+		emake || die
+	fi
+}
+
+src_install() {
+	# This block updates genkernel.conf
+	sed \
+		-e "s:VERSION_BUSYBOX:$VERSION_BUSYBOX:" \
+		-e "s:VERSION_DMAP:$VERSION_DMAP:" \
+		-e "s:VERSION_MDADM:$VERSION_MDADM:" \
+		-e "s:VERSION_DMRAID:$VERSION_DMRAID:" \
+		-e "s:VERSION_E2FSPROGS:$VERSION_E2FSPROGS:" \
+		-e "s:VERSION_FUSE:$VERSION_FUSE:" \
+		-e "s:VERSION_ISCSI:$VERSION_ISCSI:" \
+		-e "s:VERSION_LVM:$VERSION_LVM:" \
+		-e "s:VERSION_UNIONFS_FUSE:$VERSION_UNIONFS_FUSE:" \
+		-e "s:VERSION_GPG:$VERSION_GPG:" \
+		"${S}"/genkernel.conf > "${T}"/genkernel.conf \
+		|| die "Could not adjust versions"
+	insinto /etc
+	doins "${T}"/genkernel.conf || die "doins genkernel.conf"
+
+	doman genkernel.8 || die "doman"
+	dodoc AUTHORS ChangeLog README TODO || die "dodoc"
+
+	dobin genkernel || die "dobin genkernel"
+
+	rm -f genkernel genkernel.8 AUTHORS ChangeLog README TODO genkernel.conf
+
+	insinto /usr/share/genkernel
+	doins -r "${S}"/* || die "doins"
+	use ibm && cp "${S}"/ppc64/kernel-2.6-pSeries "${S}"/ppc64/kernel-2.6 || \
+		cp "${S}"/arch/ppc64/kernel-2.6.g5 "${S}"/arch/ppc64/kernel-2.6
+
+	# Copy files to /var/cache/genkernel/src
+	elog "Copying files to /var/cache/genkernel/src..."
+	mkdir -p "${D}"/var/cache/genkernel/src
+	cp -f \
+		"${DISTDIR}"/mdadm-${VERSION_MDADM}.tar.bz2 \
+		"${DISTDIR}"/dmraid-${VERSION_DMRAID}.tar.bz2 \
+		"${DISTDIR}"/LVM2.${VERSION_LVM}.tgz \
+		"${DISTDIR}"/device-mapper.${VERSION_DMAP}.tgz \
+		"${DISTDIR}"/e2fsprogs-${VERSION_E2FSPROGS}.tar.gz \
+		"${DISTDIR}"/busybox-${VERSION_BUSYBOX}.tar.bz2 \
+		"${DISTDIR}"/fuse-${VERSION_FUSE}.tar.gz \
+		"${DISTDIR}"/unionfs-fuse-${VERSION_UNIONFS_FUSE}.tar.bz2 \
+		"${DISTDIR}"/gnupg-${VERSION_GPG}.tar.bz2 \
+		"${DISTDIR}"/open-iscsi-${VERSION_ISCSI}.tar.gz \
+		"${D}"/var/cache/genkernel/src || die "Copying distfiles..."
+
+	dobashcompletion "${FILESDIR}"/genkernel.bash
+}
+
+pkg_postinst() {
+	echo
+	elog 'Documentation is available in the genkernel manual page'
+	elog 'as well as the following URL:'
+	echo
+	elog 'http://www.gentoo.org/doc/en/genkernel.xml'
+	echo
+	ewarn "This package is known to not work with reiser4.  If you are running"
+	ewarn "reiser4 and have a problem, do not file a bug.  We know it does not"
+	ewarn "work and we don't plan on fixing it since reiser4 is the one that is"
+	ewarn "broken in this regard.  Try using a sane filesystem like ext3 or"
+	ewarn "even reiser3."
+	echo
+	ewarn "The LUKS support has changed from versions prior to 3.4.4.  Now,"
+	ewarn "you use crypt_root=/dev/blah instead of real_root=luks:/dev/blah."
+	echo
+
+	bash-completion_pkg_postinst
+}