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-#!/bin/sh
-#
-# /etc/rc.d/rc.S: System initialization script.
-#
-# Mostly written by: Patrick J. Volkerding, <volkerdi@slackware.com>
-#
-
-# Set $container variable since this is a modified version of rc.S with
-# changes for running in an lxc container. A check to see if this variable
-# is set will be used to skip parts of the script that we don't want to run
-# in a container. Thanks to Matteo Bernardini <ponce@slackbuilds.org> and
-# Chris Willing for the initial work making this script lxc compatible.
-container="lxc"
-
-PATH=/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/bin:/bin
-
-# Try to mount /proc:
-if [ -z "$container" ]; then
- /sbin/mount -v proc /proc -n -t proc 2> /dev/null
-fi
-
-# Mount sysfs next, if the kernel supports it:
-if [ -d /sys -a -z "$container" ]; then
- if grep -wq sysfs /proc/filesystems ; then
- if ! grep -wq sysfs /proc/mounts ; then
- /sbin/mount -v sysfs /sys -n -t sysfs
- fi
- fi
-fi
-
-# If /run exists, mount a tmpfs on it (unless the
-# initrd has already done so):
-if [ -d /run -a -z "$container" ]; then
- if ! grep -wq "tmpfs /run tmpfs" /proc/mounts ; then
- /sbin/mount -v -n -t tmpfs tmpfs /run -o mode=0755,size=32M,nodev,nosuid,noexec
- fi
-fi
-
-# Load the loop device kernel module:
-if [ -x /etc/rc.d/rc.loop -a -z "$container" ]; then
- /etc/rc.d/rc.loop start
-fi
-
-# Initialize udev to manage /dev entries and hotplugging.
-# You may turn off udev by making the /etc/rc.d/rc.udev file non-executable
-# or giving the "nohotplug" option at boot, but realize that if you turn off
-# udev that you will have to load all the kernel modules that you need
-# yourself (possibly in /etc/rc.d/rc.modules.local), and make any additional
-# device nodes that you need in the /dev directory. Even USB and IEEE1394
-# devices will need to have the modules loaded by hand if udev is not used.
-# So use it. :-)
-if grep -wq sysfs /proc/mounts && grep -q devtmpfs /proc/filesystems ; then
- if ! grep -wq nohotplug /proc/cmdline ; then
- if [ -x /etc/rc.d/rc.udev -a -z "$container" ]; then
- /etc/rc.d/rc.udev start
- fi
- fi
-fi
-
-# Mount Control Groups filesystem interface:
-if [ -z "$container" ]; then
- if grep -wq cgroup /proc/filesystems ; then
- if [ -d /sys/fs/cgroup ]; then
- # See linux-*/Documentation/cgroups/cgroups.txt (section 1.6)
- # Check if we have some tools to autodetect the available cgroup controllers
- if [ -x /bin/cut -a -x /bin/tail ]; then
- # Mount a tmpfs as the cgroup filesystem root
- mount -t tmpfs -o mode=0755 cgroup_root /sys/fs/cgroup
- # Autodetect available controllers and mount them in subfolders
- controllers="$(/bin/cut -f 1 /proc/cgroups | /bin/tail -n +2)"
- for i in $controllers; do
- mkdir /sys/fs/cgroup/$i
- mount -t cgroup -o $i $i /sys/fs/cgroup/$i
- done
- unset i controllers
- else
- # We can't use autodetection so fall back mounting them all together
- mount -t cgroup cgroup /sys/fs/cgroup
- fi
- else
- mkdir -p /dev/cgroup
- mount -t cgroup cgroup /dev/cgroup
- fi
- fi
-fi
-
-# Initialize the Logical Volume Manager.
-# This won't start unless we find /etc/lvmtab (LVM1) or
-# /etc/lvm/backup/ (LVM2). This is created by /sbin/vgscan, so to
-# use LVM you must run /sbin/vgscan yourself the first time (and
-# create some VGs and LVs).
-if [ -z "$container" ]; then
- # Create LVM lock/run directories:
- mkdir -p -m 0700 /run/lvm /run/lock /run/lock/lvm
- if [ -r /etc/lvmtab -o -d /etc/lvm/backup ]; then
- echo "Initializing LVM (Logical Volume Manager):"
- # Check for device-mapper support.
- if ! grep -wq device-mapper /proc/devices ; then
- # Try to load a device-mapper kernel module:
- /sbin/modprobe -q dm-mod
- fi
- # Scan for new volume groups:
- /sbin/vgscan --mknodes --ignorelockingfailure 2> /dev/null
- if [ $? = 0 ]; then
- # Make volume groups available to the kernel.
- # This should also make logical volumes available.
- /sbin/vgchange -ay --ignorelockingfailure
- fi
- fi
-fi
-
-# Open any volumes created by cryptsetup.
-#
-# Some notes on /etc/crypttab in Slackware:
-# Only LUKS formatted volumes are supported (except for swap)
-# crypttab follows the following format:
-# <luks_name> <device> <password> <options>
-#
-# <luks_name>: This is the name of your LUKS volume.
-# For example: crypt-home
-#
-# <device>: This is the device containing your LUKS volume.
-# For example: /dev/sda2
-#
-# <password>: This is either the volume password in plain text, or the name of
-# a key file. Use 'none' to interactively enter password on boot.
-#
-# <options>: Comma-separated list of options. Note that there must be a
-# password field for any options to be picked up (use a password of 'none' to
-# get a password prompt at boot). The following options are supported:
-#
-# discard -- this will cause --allow-discards to be passed to the cryptsetup
-# program while opening the LUKS volume.
-#
-# ro -- this will cause --readonly to be passed to the cryptsetup program while
-# opening the LUKS volume.
-#
-# swap -- this option cannot be used with other options. The device given will
-# be formatted as a new encrypted volume with a random key on boot, and used as
-# swap.
-#
-if [ -f /etc/crypttab -a -x /sbin/cryptsetup -a -z "$container" ]; then
- # First, check for device-mapper support.
- if ! grep -wq device-mapper /proc/devices ; then
- # If device-mapper exists as a module, try to load it.
- # Try to load a device-mapper kernel module:
- /sbin/modprobe -q dm-mod
- fi
- # NOTE: we only support LUKS formatted volumes (except for swap)!
- cat /etc/crypttab | grep -v "^#" | grep -v "^$" | while read line; do
- eval LUKSARRAY=( $line )
- LUKS="${LUKSARRAY[0]}"
- DEV="${LUKSARRAY[1]}"
- PASS="${LUKSARRAY[2]}"
- OPTS="${LUKSARRAY[3]}"
- LUKSOPTS=""
- if echo $OPTS | grep -wq ro ; then LUKSOPTS="${LUKSOPTS} --readonly" ; fi
- if echo $OPTS | grep -wq discard ; then LUKSOPTS="${LUKSOPTS} --allow-discards" ; fi
- # Skip LUKS volumes that were already unlocked (in the initrd):
- /sbin/cryptsetup status $LUKS 2>/dev/null | head -n 1 | grep -q "is active" && continue
- if /sbin/cryptsetup isLuks $DEV 2>/dev/null ; then
- if [ -z "${LUKSOPTS}" ]; then
- echo "Unlocking LUKS encrypted volume '${LUKS}' on device '$DEV':"
- else
- echo "Unlocking LUKS encrypted volume '${LUKS}' on device '$DEV' with options '${LUKSOPTS}':"
- fi
- if [ -n "${PASS}" -a "${PASS}" != "none" ]; then
- if [ -f "${PASS}" ]; then
- # A password was given a key-file filename
- /sbin/cryptsetup ${LUKSOPTS} --key-file=${PASS} luksOpen $DEV $LUKS
- else
- # A password was provided in plain text
- echo "${PASS}" | /sbin/cryptsetup ${LUKSOPTS} luksOpen $DEV $LUKS
- fi
- else
- # No password was given, or a password of 'none' was given
- /sbin/cryptsetup ${LUKSOPTS} luksOpen $DEV $LUKS </dev/tty0 >/dev/tty0 2>&1
- fi
- elif echo $OPTS | grep -wq swap ; then
- # If any of the volumes is to be used as encrypted swap,
- # then encrypt it using a random key and run mkswap:
- echo "Creating encrypted swap volume '${LUKS}' on device '$DEV':"
- /sbin/cryptsetup --cipher=aes --key-file=/dev/urandom --key-size=256 create $LUKS $DEV
- mkswap /dev/mapper/$LUKS
- fi
- done
-fi
-
-# Enable swapping:
-if [ -z "$container" ]; then
- /sbin/swapon -a 2> /dev/null
-fi
-
-# Set the tick and frequency for the system clock.
-# Default values are: TICK=10000 and FREQ=0
-if [ -z "$container" ]; then
- TICK=10000
- FREQ=0
- # If there's a /etc/default/adjtimex config file, source it to override
- # the default TICK and FREQ:
- if [ -r /etc/default/adjtimex ]; then
- . /etc/default/adjtimex
- fi
- if /sbin/adjtimex --tick $TICK --frequency $FREQ; then
- echo "Setting the system clock rate: /sbin/adjtimex --tick $TICK --frequency $FREQ"
- else
- echo "Failed to set system clock with adjtimex, possibly invalid parameters? (TICK=$TICK FREQ=$FREQ)"
- fi
-fi
-
-# Set the system time from the hardware clock using hwclock --hctosys.
-if [ -x /sbin/hwclock -a -z "$container" ]; then
- # Check for a broken motherboard RTC clock (where ioports for rtc are
- # unknown) to prevent hwclock causing a hang:
- if ! grep -q " : rtc" /proc/ioports ; then
- CLOCK_OPT="--directisa"
- fi
- if [ /etc/adjtime -nt /etc/hardwareclock ]; then
- if grep -q "^LOCAL" /etc/adjtime ; then
- echo -n "Setting system time from the hardware clock (localtime): "
- else
- echo -n "Setting system time from the hardware clock (UTC): "
- fi
- /sbin/hwclock $CLOCK_OPT --hctosys
- elif grep -wq "^localtime" /etc/hardwareclock 2> /dev/null ; then
- echo -n "Setting system time from the hardware clock (localtime): "
- /sbin/hwclock $CLOCK_OPT --localtime --hctosys
- else
- echo -n "Setting system time from the hardware clock (UTC): "
- /sbin/hwclock $CLOCK_OPT --utc --hctosys
- fi
- date
-fi
-
-# Test to see if the root partition is read-only, like it ought to be.
-if [ -z "$container" ]; then
- READWRITE=no
- if touch /fsrwtestfile 2>/dev/null; then
- rm -f /fsrwtestfile
- READWRITE=yes
- else
- echo "Testing root filesystem status: read-only filesystem"
- fi
-fi
-
-# See if a forced filesystem check was requested at shutdown:
-if [ -r /etc/forcefsck -a -z "$container" ]; then
- FORCEFSCK="-f"
-fi
-
-# Check the root filesystem:
-if [ -z "$container" ]; then
- # If we're using F2FS for the root filesystem, don't check it as it doesn't
- # allow checking a read-only filesystem:
- if grep -q ' / f2fs ' /proc/mounts ; then
- echo "Remounting root device with read-write enabled."
- /sbin/mount -w -v -n -o remount /
- elif [ ! $READWRITE = yes ]; then
- RETVAL=0
- if [ ! -r /etc/fastboot ]; then
- echo "Checking root filesystem:"
- /sbin/fsck $FORCEFSCK -C -a /
- RETVAL=$?
- fi
- # An error code of 2 or higher will require a reboot.
- if [ $RETVAL -ge 2 ]; then
- # An error code equal to or greater than 4 means that some errors
- # could not be corrected. This requires manual attention, so we
- # offer a chance to try to fix the problem in single-user mode:
- if [ $RETVAL -ge 4 ]; then
- echo
- echo "***********************************************************"
- echo "*** An error occurred during the root filesystem check. ***"
- echo "*** You will now be given a chance to log into the ***"
- echo "*** system in single-user mode to fix the problem. ***"
- echo "*** ***"
- echo "*** If you are using the ext2 filesystem, running ***"
- echo "*** 'e2fsck -v -y <partition>' might help. ***"
- echo "***********************************************************"
- echo
- echo "Once you exit the single-user shell, the system will reboot."
- echo
- PS1="(Repair filesystem) \#"; export PS1
- sulogin
- else # With an error code of 2 or 3, reboot the machine automatically:
- echo
- echo "***********************************"
- echo "*** The filesystem was changed. ***"
- echo "*** The system will now reboot. ***"
- echo "***********************************"
- echo
- fi
- echo "Unmounting file systems."
- /sbin/umount -a -r
- /sbin/mount -n -o remount,ro /
- echo "Rebooting system."
- reboot -f
- fi
- # Remount the root filesystem in read-write mode
- echo "Remounting root device with read-write enabled."
- /sbin/mount -w -v -n -o remount /
- if [ $? -gt 0 ] ; then
- echo "FATAL: Attempt to remount root device as read-write failed! This is going to"
- echo "cause serious problems."
- fi
- else
- echo "Testing root filesystem status: read-write filesystem"
- echo
- echo "ERROR: Root partition has already been mounted read-write. Cannot check!"
- echo
- echo "For filesystem checking to work properly, your system must initially mount"
- echo "the root partition as read only. If you're booting with LILO, add a line:"
- echo
- echo " read-only"
- echo
- echo "to the Linux section in your /etc/lilo.conf and type 'lilo' to reinstall it."
- fi # Done checking root filesystem
-fi
-
-# If /etc/mtab is a symlink (probably to /proc/mounts) then we don't want to mess with it.
-if [ ! -L /etc/mtab -o ! -r /etc/mtab ]; then
- # /etc/mtab is a file (or doesn't exist), so we'll handle it the old way:
- # Any /etc/mtab that exists here is old, so we start with a new one:
- /bin/rm -f /etc/mtab{,~,.tmp} && /bin/touch /etc/mtab
- if [ -z "$container" ]; then
- # Add /, /proc, /sys, and /dev/shm mounts to /etc/mtab:
- /sbin/mount -f -w /
- if [ -d /proc/sys ]; then
- /sbin/mount -f -t proc proc /proc
- fi
- if [ -d /sys/bus ]; then
- /sbin/mount -f -t sysfs sysfs /sys
- fi
- if grep -q '^[^ ]\+ /dev/shm ' /proc/mounts 2> /dev/null ; then
- /sbin/mount -f -t tmpfs tmpfs /dev/shm
- fi
- fi
-fi
-
-# Configure ISA Plug-and-Play devices:
-if [ -r /etc/isapnp.conf -a -z "$container" ]; then
- if [ -x /sbin/isapnp ]; then
- /sbin/isapnp /etc/isapnp.conf
- fi
-fi
-
-# Run the kernel module script. This updates the module dependencies and
-# also supports manually loading kernel modules through rc.modules.local.
-if [ -x /etc/rc.d/rc.modules -a -z "$container" ]; then
- /etc/rc.d/rc.modules
-fi
-
-# Configure kernel parameters:
-if [ -x /sbin/sysctl -a -r /etc/sysctl.conf -a -z "$container" ]; then
- echo "Configuring kernel parameters: /sbin/sysctl -e --system"
- /sbin/sysctl -e --system
-elif [ -x /sbin/sysctl -a -z "$container" ]; then
- echo "Configuring kernel parameters: /sbin/sysctl -e --system"
- # Don't say "Applying /etc/sysctl.conf" or complain if the file doesn't exist
- /sbin/sysctl -e --system 2> /dev/null | grep -v "Applying /etc/sysctl.conf"
-fi
-
-# Check all the non-root filesystems:
-if [ ! -r /etc/fastboot -a -z "$container" ]; then
- echo "Checking non-root filesystems:"
- /sbin/fsck $FORCEFSCK -C -R -A -a
-fi
-
-# Mount usbfs only if it is found in /etc/fstab:
-if [ -z "$container" ]; then
- if grep -wq usbfs /proc/filesystems; then
- if ! grep -wq usbfs /proc/mounts ; then
- if grep -wq usbfs /etc/fstab; then
- /sbin/mount -v /proc/bus/usb
- fi
- fi
- fi
-fi
-
-# Mount non-root file systems in fstab, but not NFS or SMB
-# because TCP/IP is not yet configured, and not proc or sysfs
-# because those have already been mounted. Also check that
-# devpts is not already mounted before attempting to mount
-# it. With a 2.6.x or newer kernel udev mounts devpts.
-if [ -z "$container" ]; then
- echo "Mounting non-root local filesystems:"
- if /bin/grep -wq devpts /proc/mounts ; then
- # This pipe after the mount command is just to convert the new
- # mount verbose output back to the old format that contained
- # more useful information:
- /sbin/mount -a -v -t nonfs,nosmbfs,nocifs,noproc,nosysfs,nodevpts | grep successfully | cut -f 1 -d : | tr -d ' ' | while read dev ; do mount | grep " ${dev} " ; done
- else
- /sbin/mount -a -v -t nonfs,nosmbfs,nocifs,noproc,nosysfs | grep successfully | cut -f 1 -d : | tr -d ' ' | while read dev ; do mount | grep " ${dev} " ; done
- fi
-fi
-
-# Enable swapping again. This is needed in case a swapfile is used,
-# as it can't be enabled until the filesystem it resides on has been
-# mounted read-write.
-if [ -z "$container" ]; then
- /sbin/swapon -a 2> /dev/null
-fi
-
-# Start cgmanager (or cgproxy in a container):
-if [ -x /etc/rc.d/rc.cgmanager -a -d /sys/fs/cgroup ]; then
- /etc/rc.d/rc.cgmanager start
-fi
-
-# Start libcgroup services:
-if [ -x /etc/rc.d/rc.cgconfig -a -x /etc/rc.d/rc.cgred -a -d /sys/fs/cgroup ]; then
- /etc/rc.d/rc.cgconfig start ; echo " /usr/sbin/cgconfigparser -l /etc/cgconfig.conf"
- /etc/rc.d/rc.cgred start
-fi
-
-# Clean up some temporary files:
-rm -f /var/run/* /var/run/*/* /var/run/*/*/* /etc/nologin \
- /etc/dhcpc/*.pid /etc/forcefsck /etc/fastboot \
- /var/state/saslauthd/saslauthd.pid \
- /tmp/.Xauth* 1> /dev/null 2> /dev/null
-if [ -d /var/lib/pkgtools/setup/tmp ]; then
- ( cd /var/lib/pkgtools/setup/tmp && rm -rf * )
-elif [ -d /var/log/setup/tmp ]; then
- ( cd /var/log/setup/tmp && rm -rf * )
-fi
-( cd /tmp && rm -rf kde-[a-zA-Z]* ksocket-[a-zA-Z]* hsperfdata_[a-zA-Z]* plugtmp* )
-
-# Clear /var/lock/subsys:
-if [ -d /var/lock/subsys ]; then
- rm -f /var/lock/subsys/*
-fi
-
-# Create /tmp/{.ICE-unix,.X11-unix} if they are not present:
-if [ ! -e /tmp/.ICE-unix ]; then
- mkdir -p /tmp/.ICE-unix
- chmod 1777 /tmp/.ICE-unix
-fi
-if [ ! -e /tmp/.X11-unix ]; then
- mkdir -p /tmp/.X11-unix
- chmod 1777 /tmp/.X11-unix
-fi
-
-# Create a fresh utmp file:
-touch /var/run/utmp
-chown root:utmp /var/run/utmp
-chmod 664 /var/run/utmp
-
-# Update the current kernel level in the /etc/motd (Message Of The Day) file,
-# if the first line of that file begins with the word 'Linux'.
-# You are free to modify the rest of the file as you see fit.
-if [ -x /bin/sed ]; then
- /bin/sed -i "{1s/^Linux.*/$(/bin/uname -sr)\./}" /etc/motd
-fi
-
-# If there are SystemV init scripts for this runlevel, run them.
-if [ -x /etc/rc.d/rc.sysvinit ]; then
- /etc/rc.d/rc.sysvinit
-fi
-
-# Run serial port setup script:
-# CAREFUL! This can make some systems hang if the rc.serial script isn't
-# set up correctly. If this happens, you may have to edit the file from a
-# boot disk, and/or set it as non-executable:
-if [ -x /etc/rc.d/rc.serial -a -z "$container" ]; then
- /etc/rc.d/rc.serial start
-fi
-
-# Carry an entropy pool between reboots to improve randomness.
-if [ -f /etc/random-seed ]; then
- echo "Using /etc/random-seed to initialize /dev/urandom."
- cat /etc/random-seed > /dev/urandom
-fi
-# Use the pool size from /proc, or 4096 bits:
-if [ -r /proc/sys/kernel/random/poolsize ]; then
- dd if=/dev/urandom of=/etc/random-seed count=1 bs=$(expr $(cat /proc/sys/kernel/random/poolsize) / 8) 2> /dev/null
-else
- dd if=/dev/urandom of=/etc/random-seed count=1 bs=512 2> /dev/null
-fi
-chmod 600 /etc/random-seed