/sbin/casper-stop is in casper 1.394.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | #! /bin/sh
# Author: Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com>
# Tollef Fog Heen <tfheen@canonical.com>
# Marco Amadori <marco.amadori@gmail.com>
#
PATH=/usr/sbin:/usr/bin:/sbin:/bin
NAME=casper
SCRIPTNAME=/etc/init.d/${NAME}
DO_SNAPSHOT=/sbin/${NAME}-snapshot
# Exit if system was not booted by casper
grep -qs boot=casper /proc/cmdline || exit 0
# Exit if the system was booted from an ISO image rather than a physical CD
grep -qs find_iso= /proc/cmdline && exit 0
# Read configuration variable file if it is present
[ -r /etc/$NAME.conf ] && . /etc/$NAME.conf
# Try to cache everything we're likely to need after ejecting. This
# is fragile and simple-minded, but our options are limited.
cache_path() {
path="$1"
if [ -d "$path" ]; then
for f in $(find "$path" -type f); do
cache_path "$f"
done
elif [ -f "$path" ] && [ ! -L "$path" ]; then
if [ -x "$path" ]; then
if file -L "$path" | grep -q 'dynamically linked'; then
for lib in $(ldd "$path" | awk '{ print $3 }'); do
cache_path "$lib"
done
fi
fi
echo -n >> "$path"
fi
}
do_stop ()
{
logger -t ${NAME} "resyncing snapshots and caching reboot files..."
if [ ! -z "${ROOTSNAP}" ]; then
$DO_SNAPSHOT --resync-string="${ROOTSNAP}"
fi
if [ ! -z "${HOMESNAP}" ]; then
$DO_SNAPSHOT --resync-string="${HOMESNAP}"
fi
# check for netboot
if [ ! -z "${NETBOOT}" ] || grep -qs netboot /proc/cmdline || grep -qsi root=/dev/nfs /proc/cmdline || grep -qsi root=/dev/cifs /proc/cmdline ; then
return 0
fi
# Don't prompt to eject the SD card on Babbage board, where we reuse it
# as a quasi-boot-floppy. Technically this uses a bit of ubiquity
# (archdetect), but since this is mostly only relevant for
# installations, who cares ...
if type archdetect >/dev/null 2>&1; then
subarch="$(archdetect)"
case $subarch in
arm*/imx51)
return 0
;;
esac
fi
prompt=1
if grep -qs noprompt /proc/cmdline || [ -e /run/casper-no-prompt ]; then
prompt=
fi
for path in $(which halt) $(which reboot) /etc/rc?.d /etc/default $(which stty) /bin/plymouth /lib/plymouth /lib/*/plymouth /lib/systemd /etc/systemd /lib/*/libnss_files* /etc/nsswitch.conf /usr/share/fonts/truetype/dejavu/DejaVuSans.ttf /usr/share/fonts/truetype/ubuntu/Ubuntu-R.ttf /usr/share/fonts/truetype/ubuntu/UbuntuMono-R.ttf /etc/fonts/fonts.conf /etc/fonts/conf.d/60-latin.conf; do
cache_path "$path"
done
device="$(grep " /cdrom " /proc/mounts | cut -d' ' -f1)" || device=
# If /cdrom isn't mounted, don't try to eject it
if [ -z "$device" ]; then
return 0
fi
# If the device exists but can't be found in /sys/block, it's most likely a partition
# so unmount it (lazy mode) and sync
if [ -b "$device" ] && [ ! -f "/sys/block/$(basename $device)/removable" ]; then
umount -l $device >/dev/null 2>&1
sync
return 0
fi
# If we're still there, then we're probably a cdrom or other media
# ship the eject if the kernel says the media isn't removable
if [ "$(cat /sys/block/$(basename $device)/removable)" = "0" ]; then
return 0
fi
# XXX - i18n
MSG="Please remove the installation medium, then press ENTER: "
MSG_FALLBACK="Please remove the installation medium, then reboot."
if [ "$prompt" ]; then
if [ -x /bin/plymouth ] && plymouth --ping; then
plymouth message --text="$MSG"
clear > /dev/tty1
echo $MSG_FALLBACK > /dev/tty1
else
stty sane < /dev/console
echo $MSG > /dev/console
fi
fi
eject -p -m $device >/dev/null 2>&1
[ "$prompt" ] || return 0
if [ -x /bin/plymouth ] && plymouth --ping; then
plymouth watch-keystroke > /dev/null
else
read x < /dev/console
fi
}
do_stop
|