[SoaS] [PATCH 4/5] livecd-iso-to-disk --copy-home --include options
Frederick Grose
fgrose at gmail.com
Thu Apr 14 12:12:02 EDT 2011
[Patch 4/5]
Author: Frederick Grose <fgrose at sugarlabs.org>
Date: Thu Apr 14 10:53:09 2011 -0400
Support installation of customized builds with --copy-home and
--include options.
Custom isos may package home.img and extra files or directories.
Fix logic on unmounting and removing SRCMNT & TGTMNT.
Include uncompressed ext3fs.img in detectsrctype() logic.
Use loop mount for SRCMNT on running Live images.
Add error messages and disc space estimation adjustments.
Tolerate user changes to 'quiet rhgb' in configuration file.
Support F15-style rd.luks=0 in configuration file adjustment.
diff --git a/tools/livecd-iso-to-disk.sh b/tools/livecd-iso-to-disk.sh
index 5261aab..de48ec4 100755
--- a/tools/livecd-iso-to-disk.sh
+++ b/tools/livecd-iso-to-disk.sh
@@ -33,6 +33,7 @@ shortusage() {
[--compress] [--skipcompress] [--swap-size-mb
<size>]
[--overlay-size-mb <size>] [--home-size-mb <size>]
[--delete-home] [--crypted-home]
[--unencrypted-home]
+ [--copy-home] [--include <file s>]
<source> <target device>
(Enter livecd-iso-to-disk --help on the command line for more
information.)"
@@ -242,6 +243,20 @@ usage() {
--unencrypted-home
Prevents the default option to encrypt a new persistent home
directory.
+ --copy-home
+ This option allows one to copy a persistent home folder from one
LiveOS
+ image to the target image. Changes already made in the source home
+ directory will be propagated to the new image.
+ WARNING: User-sensitive information, such as password cookies
and
+ user and application data, will be copied to the new image!
Scrub
+ this information before using this option.
+
+ --include <path s>
+ This option allows one to copy one or more file or directory paths
from
+ the outer source filesystem to the same path on the target.
+ Multiple paths should be specified in one string, i.e.,
+ --include "path1 path2 ..."
+
CONTRIBUTORS
livecd-iso-to-disk: David Zeuthen, Jeremy Katz, Douglas McClendon,
@@ -272,8 +287,14 @@ usage() {
cleanup() {
sleep 2
- [ -d "$SRCMNT" ] && umount $SRCMNT && rmdir $SRCMNT
- [ -d "$TGTMNT" ] && umount $TGTMNT && rmdir $TGTMNT
+ if [[ -d $SRCMNT ]]; then
+ umount $SRCMNT
+ rmdir $SRCMNT
+ fi
+ if [[ -d $TGTMNT ]]; then
+ umount $TGTMNT
+ rmdir $TGTMNT
+ fi
}
exitclean() {
@@ -594,7 +615,8 @@ if [ $(id -u) != 0 ]; then
fi
detectsrctype() {
- if [[ -e $SRCMNT/LiveOS/squashfs.img ]]; then
+ if [[ -e $SRCMNT/LiveOS/squashfs.img ||
+ -e $SRCMNT/LiveOS/ext3fs.img ]]; then
srctype=live
return
fi
@@ -652,6 +674,8 @@ shopt -s extglob
cryptedhome=1
keephome=1
+copyhome=
+copyhomesize=0
homesizemb=0
swapsizemb=0
overlaysizemb=0
@@ -659,6 +683,7 @@ srctype=
imgtype=
LIVEOS=LiveOS
HOMEFILE="home.img"
+includes=
if [[ "$*" =~ "--help" ]]; then
usage
@@ -747,6 +772,14 @@ while [ $# -gt 2 ]; do
--delete-home)
keephome=""
;;
+ --copy-home)
+ copyhome=1
+ cryptedhome=""
+ ;;
+ --include)
+ includes=($2)
+ shift
+ ;;
*)
echo "invalid arg -- $1"
shortusage
@@ -795,6 +828,7 @@ fi
# do some basic sanity checks.
checkMounted $TGTDEV
+! [[ /dev/live == $1 || /dev/sr0 == $1 ]] && checkMounted $SRC
# Format the device
if [ -n "$format" -a -z "$skipcopy" ]; then
@@ -850,10 +884,13 @@ fi
# FIXME: would be better if we had better mountpoints
SRCMNT=$(mktemp -d /media/srctmp.XXXXXX)
-if [ -b $SRC ]; then
- mount -o ro "$SRC" $SRCMNT || exitclean
-elif [ -f $SRC ]; then
+if [[ -f $SRC || /dev/live == $1 || /dev/sr0 == $1 ]]; then
mount -o loop,ro "$SRC" $SRCMNT || exitclean
+ imgtype='iso'
+ [[ /dev/live == $1 ]] && imgtype='live'
+elif [[ -b $SRC ]]; then
+ mount -o ro "$SRC" $SRCMNT || exitclean
+ imgtype='blk'
else
echo "$SRC is not a file or block device."
exitclean
@@ -865,11 +902,53 @@ trap exitclean SIGINT SIGTERM
detectsrctype
-if [ -f "$TGTMNT/$LIVEOS/$HOMEFILE" -a -n "$keephome" -a "$homesizemb" -gt
0 ]; then
- echo "ERROR: Requested keeping existing /home and specified a size for
/home"
- echo "Please either don't specify a size or specify --delete-home"
+if [[ -d $SRCMNT/LiveOS ]]; then
+ SRCLIVEOSDIR=$SRCMNT/LiveOS
+else
+ SRCLIVEOSDIR=$SRCMNT
+fi
+if [[ ! -f $SRCMNT/$LIVEOS/$HOMEFILE && -n $copyhome ]]; then
+ echo -e "ERROR: There appears to be no persistent /home.img on the
source
+ Please check your inputs.\n"
+ exitclean
+fi
+if [[ -f $SRCMNT/$LIVEOS/$HOMEFILE && -n $copyhome && -n $cryptedhome ]];
then
+ echo -e "WARNING: You asked for an --encrypted-home and to copy the
source's
+ /home.img to your target device. The --encrypted-home option is
only
+ available for newly-created /home directories. (If the /home.img
on
+ the source is encrypted, that feature will carry over.)\n
+ Press Enter to continue, or Ctrl-c to abort.\n"
+ read
+fi
+if [[ -f $TGTMNT/$LIVEOS/$HOMEFILE && -n $keephome && $homesizemb -gt 0 ]];
then
+ echo -e "ERROR: The target has an existing /home and you requested that
a
+ new /home.img be created.
+ To remove an existing /home on the target, you must explicitly
specify
+ --delete-home.
+ Please adjust your home options.\n"
+ exitclean
+fi
+if [[ -f $TGTMNT/$LIVEOS/$HOMEFILE && -n $keephome && -n $copyhome && \
+ -s $SRCMNT/$LIVEOS/$HOMEFILE ]]; then
+ echo -e "ERROR: The target has an existing /home and you requested that
one
+ from the source be copied to the target device.
+ To remove an existing /home on the target, you must explicitly
specify
+ --delete-home.
+ Please adjust your home options.\n"
exitclean
fi
+if [[ -s $SRCMNT/$LIVEOS/$HOMEFILE && -n $copyhome && $homesizemb -gt 0 ]];
then
+ echo -e "ERROR: You requested a new home AND a copy of one from the
source.
+ Please request only one of these options.\n"
+ exitclean
+fi
+if [[ ! -s $SRCLIVEOSDIR/$HOMEFILE && -n $copyhome && $overlaysizemb -gt 0
]]; then
+ echo -e "NOTICE: There appears to be no persistent /home.img on this
image.
+ Would you LIKE to continue with just the persistent overlay?\n
+ Press Enter to continue, or Ctrl-c to abort.\n"
+ read
+ copyhome=""
+fi
if [ -n "$efi" ]; then
if [ -d $SRCMNT/EFI/BOOT ]; then
@@ -894,11 +973,11 @@ else
fi
if [[ live == $srctype ]]; then
- targets="$TGTMNT/$SYSLINUXPATH"
- [[ -n $efi ]] && targets+=" $TGTMNT$EFI_BOOT"
- [[ -n $xo ]] && targets+=" $TGTMNT/boot/olpc.fth"
- duTable=($(du -c -B 1M $targets 2> /dev/null || :))
- tbd=$((tbd + ${duTable[*]: -2:1}))
+ targets="$TGTMNT/$SYSLINUXPATH"
+ [[ -n $efi ]] && targets+=" $TGTMNT$EFI_BOOT"
+ [[ -n $xo ]] && targets+=" $TGTMNT/boot/olpc.fth"
+ duTable=($(du -c -B 1M $targets 2> /dev/null || :))
+ tbd=$((tbd + ${duTable[*]: -2:1}))
fi
if [[ -n $skipcompress ]] && [[ -s $SRCMNT/LiveOS/squashfs.img ]]; then
@@ -931,22 +1010,52 @@ if [[ live == $srctype ]]; then
[[ -n $xo ]] && sources+=" $SRCMNT/boot/olpc.fth"
duTable=($(du -c -B 1M "$thisScriptpath" $sources 2> /dev/null || :))
livesize=$((livesize + ${duTable[*]: -2:1}))
+ [[ -s $SRCLIVEOSDIR/$HOMEFILE && -n $copyhome ]] && \
+ copyhomesize=($(du -s -B 1M $SRCLIVEOSDIR/$HOMEFILE))
+ if [[ 'iso' == $imgtype ]]; then
+ [[ -e $SRCMNT/boot ]] && findargs=$SRCMNT/boot
+ findargs+=" $SRCMNT"' -xdev -mindepth 1 -maxdepth 1
+ ( -type d -o -type f )
+ ! ( -name isolinux -o -name LiveOS -o -name EFI -o -name
olpc.fth )
+ -print0'
+ fi
+ if [[ -n $includes ]]; then
+ includes=(${includes[@]/#/$SRCMNT})
+ for i in ${!includes[*]}; do
+ if [[ ! -e ${includes[i]} ]]; then
+ echo -e "\n${includes[i]#$SRCMNT} does not exist.
+ Please check your input. Exiting..."; exitclean
+ fi
+ done
+ fi
+ includes_size=0
+ if [[ -n $includes || -n $findargs ]]; then
+ duTable=($(find ${includes[*]} $findargs | \
+ du -cs -B 1M --files0-from=-))
+ includes_size=${duTable[*]: -2:1}
+ fi
fi
freespace=($(df -B 1M --total $TGTDEV))
freespace=${freespace[*]: -2:1}
if [[ live == $srctype ]]; then
- tba=$((overlaysizemb + homesizemb + livesize + swapsizemb))
+ tba=$((overlaysizemb + homesizemb + copyhomesize + includes_size + \
+ livesize + swapsizemb))
if ((tba > freespace + tbd)); then
needed=$((tba - freespace - tbd))
- printf "\n The live image + overlay, home, & swap space, if
requested,
- \r will NOT fit in the space available on the target device.\n
- \r + Size of live image: %10s MiB\n" $livesize
+ printf "\n The live image + overlay, home, includes, & swap space,
+ \r if requested, will NOT fit in the space available on the
+ \r target device.\n
+ \r + Size of live image: %10s MiB\n" $livesize
(($overlaysizemb > 0)) && \
printf " + Overlay size: %16s\n" $overlaysizemb
(($homesizemb > 0)) && \
printf " + Home directory size: %9s\n" $homesizemb
+ (($copyhomesize > 0)) && \
+ printf " + Copy home directory size: %4s\n" $copyhomesize
+ (($includes_size > 0)) && \
+ printf " + Included files size: %9s\n" $includes_size
(($swapsizemb > 0)) && \
printf " + Swap overlay size: %11s\n" $swapsizemb
printf " = Total requested space: %6s MiB\n" $tba
@@ -1030,6 +1139,18 @@ if [ "$srctype" = "live" -a -z "$skipcopy" ]; then
if [ -f $SRCMNT/LiveOS/osmin.img ]; then
copyFile $SRCMNT/LiveOS/osmin.img $TGTMNT/$LIVEOS/osmin.img ||
exitclean
fi
+ if [[ -s $SRCLIVEOSDIR/$HOMEFILE && -n $copyhome ]]; then
+ copyFile $SRCLIVEOSDIR/$HOMEFILE $TGTMNT/$LIVEOS/$HOMEFILE ||
exitclean
+ fi
+ cp_mode='-ax'
+ [[ 'vfat' == $TGTFS || 'msdos' == $TGTFS ]] && cp_mode='-dRx'
+ if [[ 'iso' == $imgtype ]]; then
+ find $findargs -exec cp $cp_mode -t $TGTMNT {} + 1> /dev/null ||
+ exitclean
+ fi
+ if [[ -n $includes ]]; then
+ cp $cp_mode -t $TGTMNT ${includes[*]} || exitclean
+ fi
sync
fi
@@ -1112,7 +1233,8 @@ if [[ live == $srctype ]]; then
if [[ -d $SRCMNT/syslinux/ ]]; then
echo "Preparing boot config file."
sed -i -e "s/root=live:[^ ]*/root=live:CDLABEL=name/"\
- -e "s/liveimg .* quiet/liveimg quiet/"\
+ -e "s/liveimg .* rd_NO_LUKS/liveimg quiet rhgb rd_NO_LUKS/"\
+ -e "s/liveimg .* rd.luks=0/liveimg quiet rhgb rd.luks=0/"\
$BOOTCONFIG $BOOTCONFIG_EFI
sed -i -e "s/^timeout.*$/timeout\ 100/"\
-e "/^totaltimeout.*$/d" $BOOTCONFIG
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