PAL.C.T MINI SHELL
#!/bin/sh
# live images are specified with
# root=live:backingdev
[ -z "$root" ] && root=$(getarg root=)
# support legacy syntax of passing liveimg and then just the base root
if getarg liveimg; then
liveroot="live:$root"
fi
if [ "${root%%:*}" = "live" ] ; then
liveroot=$root
fi
[ "${liveroot%%:*}" = "live" ] || return
case "$liveroot" in
live:LABEL=*|LABEL=*)
root="${root#live:}"
root="$(echo $root | sed 's,/,\\x2f,g')"
root="live:/dev/disk/by-label/${root#LABEL=}"
rootok=1 ;;
live:CDLABEL=*|CDLABEL=*)
root="${root#live:}"
root="$(echo $root | sed 's,/,\\x2f,g')"
root="live:/dev/disk/by-label/${root#CDLABEL=}"
rootok=1 ;;
live:UUID=*|UUID=*)
root="${root#live:}"
root="live:/dev/disk/by-uuid/${root#UUID=}"
rootok=1 ;;
live:/*.[Ii][Ss][Oo]|/*.[Ii][Ss][Oo])
root="${root#live:}"
root="liveiso:${root}"
rootok=1 ;;
live:/dev/*)
rootok=1 ;;
esac
info "root was $root, liveroot is now $liveroot"
if [ "${root##live:/dev/}" != "$root" ]; then
[ -d /dev/.udev/rules.d ] || mkdir -p /dev/.udev/rules.d
{
printf 'KERNEL=="%s", SYMLINK+="live"\n' \
${root#live:/dev/}
printf 'SYMLINK=="%s", SYMLINK+="live"\n' \
${root#live:/dev/}
} >> /dev/.udev/rules.d/99-live-mount.rules
{
printf 'KERNEL=="%s", RUN+="/sbin/initqueue --settled --onetime --unique /sbin/dmsquash-live-root $env{DEVNAME}"\n' \
${root#live:/dev/}
printf 'SYMLINK=="%s", RUN+="/sbin/initqueue --settled --onetime --unique /sbin/dmsquash-live-root $env{DEVNAME}"\n' \
${root#live:/dev/}
} >> /etc/udev/rules.d/98-dracut-20-live-squash.rules
echo '[ -e /dev/live ]' > /initqueue-finished/dmsquash.sh
root=/dev/mapper/live-rw
unset rootok
fi
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