/usr/share/initramfs-tools/scripts/live-bottom/12fstab is in live-boot-initramfs-tools 3.0~a24-1ubuntu1.
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 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 | #!/bin/sh
#set -e
# initramfs-tools header
PREREQ=""
FSTAB=/root/etc/fstab
prereqs()
{
echo "${PREREQ}"
}
case "${1}" in
prereqs)
prereqs
exit 0
;;
esac
# live-boot header
. /scripts/live-functions
if [ -n "${NOFSTAB}" ]
then
exit 0
fi
log_begin_msg "Configuring fstab"
# live-boot script
# Create a fake fstab only if it doesn't exist or if its the debootstrap template
if [ ! -f "${FSTAB}" ] || grep -qs 'UNCONFIGURED FSTAB FOR BASE SYSTEM' "${FSTAB}"
then
cat > ${FSTAB} << EOF
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
EOF
fi
if ! grep -qs "^${UNIONTYPE}" "${FSTAB}"
then
echo "${UNIONTYPE} / ${UNIONTYPE} rw 0 0" >> "${FSTAB}"
fi
if ! grep -qs "^tmpfs /tmp" "${FSTAB}"
then
echo "tmpfs /tmp tmpfs nosuid,nodev 0 0" >> "${FSTAB}"
fi
if [ -n "${SWAPON}" ]
then
devices=""
for device in /dev/[hs]d[a-z][0-9]*
do
if ! [ -b "${device}" ]
then
continue
fi
/sbin/blkid -o udev -p ${device%%[0-9]*} | grep -q "^ID_FS_USAGE=raid" && continue
magic=$(/bin/dd if="${device}" bs=4086 skip=1 count=1 2>/dev/null | /bin/dd bs=10 count=1 2>/dev/null) || continue
if [ "${magic}" = "SWAPSPACE2" -o "${magic}" = "SWAP-SPACE" ]
then
#log "Found ${device}"
devices="${devices} ${device}"
fi
done
# Remove all auto swap entries
if grep -qs "swap swap" "${FSTAB}"
then
grep -v "swap swap" "${FSTAB}" > "${FSTAB}".tmp
mv "${FSTAB}".tmp "${FSTAB}"
fi
# Add new swap entries
for device in ${devices}
do
echo "${device} swap swap defaults 0 0" >> "${FSTAB}"
done
fi
# disabled for now
#rm -f /root/etc/rcS.d/S*checkroot.sh
if [ "${NOFASTBOOT}" != "Yes" ]
then
touch root/fastboot
fi
log_end_msg
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