/usr/share/initramfs-tools/scripts/local-bottom/bootcdaufs is in bootcd 4.05.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | #!/bin/sh
# if necessary mount iso image loopback
# use aufs to make iso image "writable"
# See manpage initramfs-tools(8)
[ -f /scripts/functions ] && . /scripts/functions
PREREQ=""
prereqs()
{
echo "$PREREQ"
}
case $1 in
prereqs)
prereqs
exit 0
;;
esac
# chkerr <EXIT CODE> <action performed>
chkerr()
{
e=$1
shift
if [ $e -ne 0 ]; then
echo "bootcdaufs: ERROR $e while running: $*"
echo "try to fix and exit"
/bin/sh
fi
}
getiso()
{
sed -n "s/^.*\<root=iso:\([^ :]*\):\([^ ]*\)\>.*$/\2/p"
}
if [ "$(grep "\<bootcd=" /proc/cmdline)" ]; then
echo "bootcdaufs rootmnt=<$rootmnt>"
iso="$(cat /proc/cmdline | getiso)"
if [ "$iso" ]; then
mkdir /bootcd.disk_with_iso
mount --move ${rootmnt} /bootcd.disk_with_iso
chkerr $? "mount --move ${rootmnt} /bootcd.disk_with_iso"
modprobe loop
mount -o loop -t iso9660 /bootcd.disk_with_iso/${iso} ${rootmnt}
chkerr $? "mount -o loop -t iso9660 /bootcd.disk_with_iso/${iso} ${rootmnt}"
fi
mkdir /bootcd.aufs
mount none -t tmpfs /bootcd.aufs
chkerr $? "mount none -t tmpfs /bootcd.aufs"
mkdir /bootcd.ro
mount --move ${rootmnt} /bootcd.ro
chkerr $? "mount --move ${rootmnt} /bootcd.ro"
mkdir /aufs
mount none -t aufs -o dirs=/bootcd.aufs:/bootcd.ro=ro /aufs
chkerr $? "mount none -t aufs -o dirs=/bootcd.aufs:/bootcd.ro=ro /aufs"
mkdir -p /aufs/mnt/bootcd.ro
mount --move /bootcd.ro /aufs/mnt/bootcd.ro
chkerr $? "mount --move /bootcd /aufs/mnt/bootcd.ro"
if [ "$iso" ]; then
mkdir -p /aufs/mnt/bootcd.disk_with_iso
mount --move /bootcd.disk_with_iso /aufs/mnt/bootcd.disk_with_iso
chkerr $? "mount --move /bootcd.disk_with_iso /aufs/mnt/bootcd.disk_with_iso"
fi
mkdir -p /aufs/mnt/bootcd.aufs
mount --move /bootcd.aufs /aufs/mnt/bootcd.aufs
chkerr $? "mount --move /bootcd.aufs /aufs/mnt/bootcd.aufs"
mount --move /aufs ${rootmnt}
chkerr $? "mount --move /aufs ${rootmnt}"
fi
exit 0
|