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- # Copyright 1999-2005 Gentoo Foundation
- # Distributed under the terms of the GNU General Public License v2
-
- # Check to see if this is a livecd, if it is read the commandline
- # this mainly makes sure $CDBOOT is defined if it's a livecd
- [[ -f /sbin/livecd-functions.sh ]] && \
- source /sbin/livecd-functions.sh && \
- livecd_read_commandline
-
- # Reset pam_console permissions if we are actually using it
- if [[ -x /sbin/pam_console_apply && ! -c /dev/.devfsd && \
- -n $(grep -v -e '^[[:space:]]*#' /etc/pam.d/* | grep 'pam_console') ]]; then
- /sbin/pam_console_apply -r
- fi
-
- # We need to properly terminate devfsd to save the permissions
- if [[ -n $(ps --no-heading -C 'devfsd') ]]; then
- ebegin "Stopping devfsd"
- killall -15 devfsd &>/dev/null
- eend $?
- elif [[ ! -e /dev/.devfsd && -e /dev/.udev && -z ${CDBOOT} && \
- ${RC_DEVICE_TARBALL} == "yes" ]] && \
- touch /lib/udev-state/devices.tar.bz2 2>/dev/null
- then
- ebegin "Saving device nodes"
- # Handle our temp files
- devices_udev=$(mktemp /tmp/devices.udev.XXXXXX)
- devices_real=$(mktemp /tmp/devices.real.XXXXXX)
- devices_totar=$(mktemp /tmp/devices.totar.XXXXXX)
- device_tarball=$(mktemp /tmp/devices-XXXXXX)
-
- if [[ -z ${devices_udev} || -z ${devices_real} || \
- -z ${device_tarball} ]]; then
- eend 1 "Could not create temporary files!"
- else
- cd /dev
- # Find all devices
- find . -xdev -type b -or -type c -or -type l | cut -d/ -f2- > \
- "${devices_real}"
- # Figure out what udev created
- eval $(grep '^[[:space:]]*udev_db=' /etc/udev/udev.conf)
- if [[ -d ${udev_db} ]]; then
- # New udev_db is clear text ...
- udevinfo=$(cat "${udev_db}"/*)
- else
- # Old one is not ...
- udevinfo=$(udevinfo -d)
- fi
- # This basically strips 'S:' and 'N:' from the db output, and then
- # print all the nodes/symlinks udev created ...
- echo "${udevinfo}" | gawk '
- /^(N|S):.+/ {
- sub(/^(N|S):/, "")
- split($0, nodes)
- for (x in nodes)
- print nodes[x]
- }' > "${devices_udev}"
- # These ones we also do not want in there
- for x in MAKEDEV core fd initctl pts shm stderr stdin stdout; do
- echo "${x}" >> "${devices_udev}"
- done
- fgrep -x -v -f "${devices_udev}" < "${devices_real}" > "${devices_totar}"
- # Now only tarball those not created by udev if we have any
- if [[ -s ${devices_totar} ]]; then
- try tar -jclpf "${device_tarball}" -T "${devices_totar}"
- try mv -f "${device_tarball}" /lib/udev-state/devices.tar.bz2
- try rm -f "${devices_udev}" "${devices_real}"
- else
- rm -f /lib/udev-state/devices.tar.bz2
- fi
- eend 0
- fi
- fi
-
- # Try to unmount all tmpfs filesystems not in use, else a deadlock may
- # occure, bug #13599.
- umount -at tmpfs &>/dev/null
-
- if [[ -n $(swapon -s 2>/dev/null) ]]; then
- ebegin "Deactivating swap"
- swapoff -a
- eend $?
- fi
-
- # Write a reboot record to /var/log/wtmp before unmounting
-
- halt -w &>/dev/null
-
- # Unmounting should use /proc/mounts and work with/without devfsd running
-
- # Credits for next function to unmount loop devices, goes to:
- #
- # Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
- # Modified for RHS Linux by Damien Neil
- #
- #
- # Unmount file systems, killing processes if we have to.
- # Unmount loopback stuff first
- # Use `umount -d` to detach the loopback device
-
- # Remove loopback devices started by dm-crypt
-
- remaining=$(awk '!/^#/ && $1 ~ /^\/dev\/loop/ && $2 != "/" {print $2}' /proc/mounts | \
- sort -r | grep -v '/newroot' | grep -v '/mnt/livecd')
- [[ -n ${remaining} ]] && {
- sig=
- retry=3
-
- while [[ -n ${remaining} && ${retry} -gt 0 ]]; do
- if [[ ${retry} -lt 3 ]]; then
- ebegin "Unmounting loopback filesystems (retry)"
- umount -d ${remaining} &>/dev/null
- eend $? "Failed to unmount filesystems this retry"
- else
- ebegin "Unmounting loopback filesystems"
- umount -d ${remaining} &>/dev/null
- eend $? "Failed to unmount filesystems"
- fi
-
- remaining=$(awk '!/^#/ && $1 ~ /^\/dev\/loop/ && $2 != "/" {print $2}' /proc/mounts | \
- sort -r | grep -v '/newroot' | grep -v '/mnt/livecd')
- [[ -z ${remaining} ]] && break
-
- /bin/fuser -k -m ${sig} ${remaining} &>/dev/null
- sleep 5
- retry=$((${retry} - 1))
- sig=-9
- done
- }
-
- # Try to unmount all filesystems (no /proc,tmpfs,devfs,etc).
- # This is needed to make sure we dont have a mounted filesystem
- # on a LVM volume when shutting LVM down ...
- ebegin "Unmounting filesystems"
- unmounts=$( \
- awk '{ \
- if (($3 !~ /^(proc|devpts|sysfs|devfs|tmpfs|usb(dev)?fs)$/) && \
- ($1 != "none") && \
- ($1 !~ /^(rootfs|\/dev\/root)$/) && \
- ($2 != "/")) \
- print $2 }' /proc/mounts | sort -ur)
- for x in ${unmounts}; do
- # Do not umount these if we are booting off a livecd
- if [[ -n ${CDBOOT} ]] && \
- [[ ${x} == "/mnt/cdrom" || ${x} == "/mnt/livecd" ]] ; then
- continue
- fi
-
- x=${x//\\040/ }
- if ! umount "${x}" &>/dev/null; then
- # Kill processes still using this mount
- /bin/fuser -k -m -9 "${x}" &>/dev/null
- sleep 2
- # Now try to unmount it again ...
- umount -f -r "${x}" &>/dev/null
- fi
- done
- eend 0
-
- # Try to remove any dm-crypt mappings
- stop_addon dm-crypt
-
- # Stop LVM, etc
- stop_volumes
-
- # This is a function because its used twice below
- ups_kill_power() {
- local UPS_CTL UPS_POWERDOWN
- if [[ -f /etc/killpower ]] ; then
- UPS_CTL=/sbin/upsdrvctl
- UPS_POWERDOWN="${UPS_CTL} shutdown"
- elif [[ -f /etc/apcupsd/powerfail ]] ; then
- UPS_CTL=/etc/apcupsd/apccontrol
- UPS_POWERDOWN="${UPS_CTL} killpower"
- else
- return 0
- fi
- if [[ -x ${UPS_CTL} ]] ; then
- ewarn "Signalling ups driver(s) to kill the load!"
- ${UPS_POWERDOWN}
- ewarn "Halt system and wait for the UPS to kill our power"
- /sbin/halt -id
- while [ 1 ]; do sleep 60; done
- fi
- }
-
- mount_readonly() {
- local x=
- local retval=0
- local cmd=$1
-
- # Get better results with a sync and sleep
- sync; sync
- sleep 1
-
- for x in $(awk '$1 != "none" { print $2 }' /proc/mounts | sort -ur) ; do
- x=${x//\\040/ }
- if [[ ${cmd} == "u" ]]; then
- umount -n -r "${x}"
- else
- mount -n -o remount,ro "${x}" &>/dev/null
- fi
- retval=$((${retval} + $?))
- done
- [[ ${retval} -ne 0 ]] && killall5 -9 &>/dev/null
-
- return ${retval}
- }
-
- # Since we use `mount` in mount_readonly(), but we parse /proc/mounts, we
- # have to make sure our /etc/mtab and /proc/mounts agree
- cp /proc/mounts /etc/mtab &>/dev/null
- ebegin "Remounting remaining filesystems readonly"
- mount_worked=0
- if ! mount_readonly ; then
- if ! mount_readonly ; then
- # If these things really don't want to remount ro, then
- # let's try to force them to unmount
- if ! mount_readonly u ; then
- mount_worked=1
- fi
- fi
- fi
- eend ${mount_worked}
- if [[ ${mount_worked} -eq 1 ]]; then
- ups_kill_power
- /sbin/sulogin -t 10 /dev/console
- fi
-
- # Inform if there is a forced or skipped fsck
- if [[ -f /fastboot ]]; then
- echo
- ewarn "Fsck will be skipped on next startup"
- elif [[ -f /forcefsck ]]; then
- echo
- ewarn "A full fsck will be forced on next startup"
- fi
-
- ups_kill_power
-
-
- # vim:ts=4
-