# Exit if system was not booted by live-initramfs
grep -qs boot=live /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/live.conf ] && . /etc/live.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
- find "$path" -type f | xargs cat > /dev/null 2>&1
- elif [ -f "$path" ]; then
- if [ -x "$path" ]; then
- if file "$path" | grep -q 'dynamically linked'; then
- for lib in $(ldd "$path" | awk '{ print $3 }'); do
- cache_path "$lib"
+ path="${1}"
+
+ if [ -d "${path}" ]; then
+ find "${path}" -type f | xargs cat > /dev/null 2>&1
+ elif [ -f "${path}" ]; then
+ if [ -x "${path}" ]; then
+ if file "${path}" | grep -q 'dynamically linked'; then
+ for lib in $(ldd "${path}" | awk '{ print $3 }'); do
+ cache_path "${lib}"
done
fi
fi
- cat "$path" >/dev/null 2>&1
+ cat "${path}" >/dev/null 2>&1
+ fi
+}
+
+get_boot_device() {
+ # search in /proc/mounts for the device that is mounted at /live/image
+ while read DEVICE MOUNT REST; do
+ if [ "${MOUNT}" == "/live/image" ]; then
+ echo "${DEVICE}"
+ exit 0
+ fi
+ done < /proc/mounts
+}
+
+device_is_USB_flash_drive()
+{
+ # remove leading "/dev/" and all trailing numbers from input
+ DEVICE=$(expr substr ${1} 6 3)
+ # check that device starts with "sd"
+ [ "$(expr substr ${DEVICE} 1 2)" != "sd" ] && return 1
+ # check that the device is an USB device
+ if readlink /sys/block/${DEVICE}/device | grep -q usb ; then
+ return 0
fi
+ return 1
}
do_stop ()
{
if [ ! -z "${ROOTSNAP}" ]; then
- $DO_SNAPSHOT --resync-string="${ROOTSNAP}"
+ ${DO_SNAPSHOT} --resync-string="${ROOTSNAP}"
fi
if [ ! -z "${HOMESNAP}" ]; then
- $DO_SNAPSHOT --resync-string="${HOMESNAP}"
+ ${DO_SNAPSHOT} --resync-string="${HOMESNAP}"
fi
# check for netboot
return 0
fi
- for path in $(which halt) $(which reboot) /etc/rc?.d /etc/default; do
- cache_path "$path"
+ prompt=1
+ if grep -qs noprompt /proc/cmdline; then
+ prompt=
+ fi
+
+ for path in $(which halt) $(which reboot) /etc/rc?.d /etc/default $(which stty); do
+ cache_path "${path}"
done
for x in $(cat /proc/cmdline); do
- case $x in
+ case ${x} in
quickreboot)
QUICKREBOOT="Yes"
;;
done
if [ -z ${QUICKREBOOT} ]; then
+ # TODO: i18n, dialog
if [ -x /usr/bin/eject ]
then
- eject -p -m /live_media >/dev/null 2>&1
+ BOOT_DEVICE="$(get_boot_device)"
+ if device_is_USB_flash_drive ${BOOT_DEVICE}; then
+ # do NOT eject USB flash drives!
+ # otherwise rebooting with most USB flash drives failes because
+ # they actually remember the "ejected" state even after reboot
+ MESSAGE="Please remove the USB flash drive"
+ else
+ # ejecting is a very good idea here
+ eject -p -m /live/image >/dev/null 2>&1
+ # TODO: detect CD
+ MEDIUM="DVD"
+ MESSAGE="Please remove the ${MEDIUM}, close the ${MEDIUM} tray (if any)"
+ fi
+ MESSAGE="${MESSAGE} and press ENTER:"
+
+ [ "$prompt" ] || return 0
fi
- # XXX - i18n
- echo "Please remove the disc and close the tray (if any) then press ENTER: "
+ stty sane < /dev/console
+
+ echo -n -e "\n\n${MESSAGE}" > /dev/console
if [ -x /sbin/usplash_write ]; then
/sbin/usplash_write "TIMEOUT 86400"
/sbin/usplash_write "TEXT-URGENT Please remove the disc, close the tray (if any)"
fi
}
-case "$1" in
+case "${1}" in
start|restart|reload|force-reload|status)
- [ "$VERBOSE" != no ] && log_end_msg 0
+ [ "${VERBOSE}" != no ] && log_end_msg 0
;;
stop)
log_begin_msg "${NAME} is resyncing snapshots and caching reboot files..."
do_stop
- case "$?" in
- 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
- 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
+ case "${?}" in
+ 0|1) [ "${VERBOSE}" != no ] && log_end_msg 0 ;;
+ 2) [ "${VERBOSE}" != no ] && log_end_msg 1 ;;
esac
;;
*)
- log_success_msg "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
+ log_success_msg "Usage: ${SCRIPTNAME} {start|stop|restart|force-reload}" >&2
exit 3
;;
esac