#!/bin/ash # # Copyright 2004 Slackware Linux, Inc., Concord, CA, USA # Copyright 2007, 2008, 2009, 2010, 2012 Patrick J. Volkerding, Sebeka, MN, USA # Copyright 2015, 2016 Eric Hameleers, Eindhoven, NL # All rights reserved. # # Redistribution and use of this script, with or without modification, is # permitted provided that the following conditions are met: # # 1. Redistributions of this script must retain the above copyright # notice, this list of conditions and the following disclaimer. # # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED # WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO # EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; # OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # ################################################################################## # Changelog # 10-Dec-2012 # * Added support for the official Kernel parameters to select root filesystem # type ('rootfstype') and pause before attempting to mount the root filesystem # ('rootdelay'). The original parameters may continue to be used. # 23-Oct-2015 # * Modified for booting as a Live filesystem. ################################################################################## # The ISO creation script will create a filesystem with this label. # Nevertheless, the user may have copied the ISO content to a different device. MEDIALABEL="@MEDIALABEL@" LIVEMAIN="@LIVEMAIN@" MARKER="@MARKER@" PERSISTENCE="@PERSISTENCE@" LIVEMEDIA="" LIVEPATH="" # By default, let the media determine if we can write persistent changes: # However, if we define TORAM=1, we will also set VIRGIN=1 since we want # to avoid anything that writes to disk after we copy the OS to RAM. VIRGIN=0 # Used for debugging the init; set to '1' to enable explicit pauses> DEBUG=0 # Masochists can copy the live environment into RAM: TORAM=0 # By default we do not touch local hard disks (raid, lvm, btrfs): LOCALHD=0 # Perhaps we need to blacklist some kernel module(s): BLACKLIST="" # QEMU X.Org and some other setups need glamor 2D acceleration disabled, # default in X.Org is to enable it: GLAMORACCEL=1 INITRD=$(cat /initrd-name) WAIT=$(cat /wait-for-root) KEYMAP=$(cat /keymap) LUKSVOL=$(cat /luksdev) INIT=/sbin/init PATH="/sbin:/bin:/usr/sbin:/usr/bin" # Mount /proc and /sys: mount -n proc /proc -t proc mount -n sysfs /sys -t sysfs mount -n tmpfs /run -t tmpfs -o mode=0755 if grep devtmpfs /proc/filesystems 1>/dev/null 2>/dev/null ; then DEVTMPFS=1 mount -n devtmpfs /dev -t devtmpfs fi # Parse command line for ARG in $(cat /proc/cmdline); do case $ARG in 0|1|2|3|4|5|6|S|s|single) RUNLEVEL=$ARG ;; blacklist=*) BLACKLIST=$(echo $ARG | cut -f2 -d=) ;; debug) DEBUG=1 ;; debug=*) DEBUG=$(echo $ARG | cut -f2 -d=) ;; hostname=*) LIVE_HOSTNAME=$(echo $ARG | cut -f2 -d=) ;; init=*) INIT=$(echo $ARG | cut -f2 -d=) ;; kbd=*) KEYMAP=$(echo $ARG | cut -f2 -d=) ;; livemain=*) LIVEMAIN=$(echo $ARG | cut -f2 -d=) ;; livemedia=*) LIVEMEDIA=$(echo $ARG | cut -f2 -d=) ;; livepw=*) LIVEPW=$(echo $ARG | cut -f2 -d=) ;; load=*) LOAD=$(echo $ARG | cut -f2 -d=) ;; locale=*) LOCALE=$(echo $ARG | cut -f2 -d=) ;; localhd) LOCALHD=1 ;; luksvol=*) # Format: luksvol=file1[:/mountpoint1][,file1[:/mountpoint2],...] LUKSVOL=$(echo $ARG | cut -f2 -d=) ;; nga) GLAMORACCEL=0 ;; noload=*) NOLOAD=$(echo $ARG | cut -f2 -d=) ;; nop) VIRGIN=1 ;; persistence=*) PERSISTENCE=$(echo $ARG | cut -f2 -d=) ;; rescue) RESCUE=1 ;; swap) USE_SWAP=1 ;; rootpw=*) ROOTPW=$(echo $ARG | cut -f2 -d=) ;; toram) TORAM=1 VIRGIN=1 # prevent writes to disk since we are supposed to run from RAM ;; tz=*) TZ=$(echo $ARG | cut -f2 -d=) ;; waitforroot=*|rootdelay=*) WAIT=$(echo $ARG | cut -f2 -d=) ;; xkb=*) XKB=$(echo $ARG | cut -f2 -d=) ;; esac done [ $DEBUG -ge 2 ] && set -x debugit () { [ $DEBUG -eq 0 ] && return echo "DEBUG>> -- blkid info -- :" blkid | while read LINE ; do echo "DEBUG>> $LINE" ; done echo "DEBUG>> -- mount info -- :" mount | while read LINE ; do echo "DEBUG>> $LINE" ; done echo "DEBUG>> -- Press ENTER to continue -- : " read JUNK return } # If udevd is available, use it to generate block devices # else use mdev to read sysfs and generate the needed devices if [ -x /sbin/udevd -a -x /sbin/udevadm ]; then /sbin/udevd --daemon --resolve-names=never /sbin/udevadm trigger --subsystem-match=block --action=add /sbin/udevadm settle --timeout=10 else [ "$DEVTMPFS" != "1" ] && mdev -s fi # Load kernel modules (ideally this was already done by udev): if [ ! -d /lib/modules/$(uname -r) ]; then echo "No kernel modules found for Linux $(uname -r)." elif [ -x ./load_kernel_modules ]; then # use load_kernel_modules script: echo "${MARKER}: Loading kernel modules from initrd image:" . ./load_kernel_modules 1>/dev/null 2>/dev/null else # load modules (if any) in order: if ls /lib/modules/$(uname -r)/*.*o 1> /dev/null 2> /dev/null ; then echo "${MARKER}: Loading kernel modules from initrd image:" for module in /lib/modules/$(uname -r)/*.*o ; do /sbin/modprobe $module 1>/dev/null 2>/dev/null done unset module fi fi # Sometimes the devices need extra time to be available. # A root filesystem on USB is a good example of that. sleep $WAIT # Fire at least one blkid: blkid 1>/dev/null 2>/dev/null # Load a custom keyboard mapping: if [ -n "$KEYMAP" ]; then echo "${MARKER}: Loading '$KEYMAP' keyboard mapping:" tar xzOf /etc/keymaps.tar.gz ${KEYMAP}.bmap | loadkmap fi if [ "$RESCUE" = "" ]; then if [ $LOCALHD -eq 1 ]; then # We will initialize RAID/LVM/BTRFS on local harddisks: # Initialize RAID: if [ -x /sbin/mdadm ]; then # If /etc/mdadm.conf is present, udev should DTRT on its own; # If not, we'll make one and go from there: if [ ! -r /etc/mdadm.conf ]; then /sbin/mdadm -E -s >/etc/mdadm.conf /sbin/mdadm -S -s /sbin/mdadm -A -s # This seems to make the kernel see partitions more reliably: fdisk -l /dev/md* 1> /dev/null 2> /dev/null fi fi # Initialize LVM: if [ -x /sbin/vgchange ]; then mkdir -p /var/lock/lvm # this avoids useless warnings /sbin/vgchange -ay --ignorelockingfailure 2>/dev/null /sbin/udevadm settle --timeout=10 fi # Scan for btrfs multi-device filesystems: if [ -x /sbin/btrfs ]; then /sbin/btrfs device scan fi fi # --------------------------------------------------------------------- # # SLACKWARE LIVE - START # # --------------------------------------------------------------------- # ## Support functions ## find_loop() { # The losetup of busybox is different from the real losetup - watch out! lodev=$(losetup -f) if [ -z "$lodev" ]; then # We exhausted the available loop devices, so create the block device: for NOD in $(seq 0 64); do if [ ! -b /dev/loop${NOD} ]; then mknod -m660 /dev/loop${NOD} b 7 ${NOD} break fi done lodev=/dev/loop${NOD} elif [ ! -b $lodev ]; then # We exhausted the available loop devices, so create the block device: mknod -m660 $lodev b 7 $(echo $lodev |sed %/dev/loop%%) fi echo "$lodev" } find_modloc() { MY_LOC="$1" if [ $TORAM -ne 0 ]; then # If we need to copy the module to RAM, we need a place for that: mkdir -p /mnt/live/toram # Copy the module to RAM before mounting it: MODNAME="$(basename ${MY_LOC})" cp ${MY_LOC} /mnt/live/toram MY_LOC=/mnt/live/toram/${MODNAME} fi echo "${MY_LOC}" } load_modules() { # SUBSYS can be 'system', 'addons', 'optional': SUBSYS="$1" if ls /mnt/media/${LIVEMAIN}/${SUBSYS}/*.sxz 1>/dev/null 2>/dev/null ; then for MODULE in /mnt/media/${LIVEMAIN}/${SUBSYS}/*.sxz ; do MODBASE="$(basename ${MODULE} .sxz)" if [ "$SUBSYS" = "optional" ]; then # Load one or more optionals by using boot parameter 'load': # load=mod1[,mod2[,mod3]] if [ -z "$LOAD" -o -z '$(echo ",${LOAD}," |grep -i ",$(echo $MODBASE |cut -d- -f2),")' ]; then continue fi elif [ "$SUBSYS" = "addons" ]; then # Skip loading one or more addons by using boot parameter 'noload': # noload=mod1[,mod2[,mod3]] if [ -n "$NOLOAD" -a -n '$(echo ",${NOLOAD}," |grep -i ",$(echo $MODBASE |cut -d- -f2),")' ]; then echo "$MODBASE" >> /mnt/live/modules/skipped continue fi fi MODLOC=$(find_modloc ${MODULE}) mkdir /mnt/live/modules/${MODBASE} mount -t squashfs -o loop ${MODLOC} /mnt/live/modules/${MODBASE} RODIRS=":/mnt/live/modules/${MODBASE}${RODIRS}" done fi } ## End support functions ## # We need a mounted filesystem here to be able to do a switch_root later, # so we create one in RAM: if [ $TORAM -eq 1 ]; then RAMSIZE=90% # need to be able to load the entire OS in RAM else RAMSIZE=50% # the default value. fi mount -t tmpfs -o defaults,size=${RAMSIZE} none /mnt # Find the Slackware Live media. # TIP: Increase WAIT to give USB devices a chance to be seen by the kernel. mkdir /mnt/media if [ -z "$LIVEMEDIA" ]; then # LIVEMEDIA not specified on the boot commandline using "livemedia=" # Filter out the block devices, only look at partitions at first: LIVEALL=$(blkid |grep LABEL="\"$MEDIALABEL\"" |cut -d: -f1 |grep "[0-9]$") LIVEMEDIA=$(blkid |grep LABEL="\"$MEDIALABEL\"" |cut -d: -f1 |grep "[0-9]$" |head -1) if [ ! -z "$LIVEMEDIA" ]; then # That was easy... we found the media straight away. # Determine filesystem type ('iso9660' means we found a CDROM/DVD) LIVEFS=$(blkid $LIVEMEDIA |rev |cut -d'"' -f2 |rev) mount -t $LIVEFS -o ro $LIVEMEDIA /mnt/media else LIVEALL=$(blkid |grep LABEL="\"$MEDIALABEL\"" |cut -d: -f1 |grep -v "[0-9]$") LIVEMEDIA=$(blkid |grep LABEL="\"$MEDIALABEL\"" |cut -d: -f1 |grep -v "[0-9]$" |head -1) if [ ! -z "$LIVEMEDIA" ]; then # We found a block device with the correct label (non-UEFI media). # Determine filesystem type ('iso9660' means we found a CDROM/DVD) LIVEFS=$(blkid $LIVEMEDIA |rev |cut -d'"' -f2 |rev) mount -t $LIVEFS -o ro $LIVEMEDIA /mnt/media else # Bummer... label not found; the ISO was extracted to a different device. # Separate partitions from block devices, look at partitions first: for SLDEVICE in $(blkid |cut -d: -f1 |grep "[0-9]$") $(blkid |cut -d: -f1 |grep -v "[0-9]$") ; do SLFS=$(blkid $SLDEVICE |rev |cut -d'"' -f2 |rev) mount -t $SLFS -o ro $SLDEVICE /mnt/media if [ -d /mnt/media/${LIVEMAIN} ]; then # Found our media! LIVEALL=$SLDEVICE LIVEMEDIA=$SLDEVICE LIVEFS=$(blkid $LIVEMEDIA |rev |cut -d'"' -f2 |rev) break else umount $SLDEVICE unset SLDEVICE fi done fi fi if [ -n "$LIVEMEDIA" ]; then # Gotcha! break fi sleep 1 else # LIVEMEDIA was specified on the boot commandline using "livemedia=" if [ ! -b "$LIVEMEDIA" ]; then # Passed a UUID or LABEL? LIVEALL=$(findfs UUID=$LIVEMEDIA 2>/dev/null) || LIVEALL=$(findfs LABEL=$LIVEMEDIA 2>/dev/null) if [ -z "$LIVEALL" ]; then echo "${MARKER}: Live media '$LIVEMEDIA' not found... trouble ahead." else LIVEMEDIA="$LIVEALL" fi else LIVEALL="$LIVEMEDIA" fi LIVEFS=$(blkid $LIVEMEDIA |rev |cut -d'"' -f2 |rev) mount -t $LIVEFS -o ro $LIVEMEDIA /mnt/media fi # Finished determining the media availability, it should be mounted now. if [ ! -z "$LIVEMEDIA" ]; then echo "${MARKER}: Live media found at ${LIVEMEDIA}." if [ ! -d /mnt/media/${LIVEMAIN} ]; then echo "${MARKER}: However, live media was not mounted... trouble ahead." fi if [ "$LIVEMEDIA" != "$LIVEALL" ]; then echo "${MARKER}: NOTE: Multiple partitions with '$MEDIALABEL' label were found ($(echo $LIVEALL))... success not guaranteed." fi else echo "${MARKER}: No live media found... trouble ahead." echo "${MARKER}: Try adding \"rootdelay=20\" to the boot command." fi debugit # Start assembling our live system components below /mnt/live : mkdir /mnt/live # Mount our squashed modules (.sxz extension). mkdir /mnt/live/modules if [ $TORAM -ne 0 ]; then echo "${MARKER}: Copying Live modules to RAM, please be patient." fi # Modules were created in specific order and will be mounted in that order. # In the lowerdirs parameter for the overlay, the module with the highest # number (i.e. created last) will be leftmost in a colon-separated list: RODIRS="" # First, the base Slackware system components: load_modules system # Next, the add-on (3rd party etc) components, if any: # Remember, module name must adhere to convention: "NNNN-modname-*.sxz" # where 'N' is a digit and 'modname' must not contain a dash '-'. load_modules addons # And finally any explicitly requested optionals (like nvidia drivers): # Remember, module name must adhere to convention: "NNNN-modname-*.sxz" # where 'N' is a digit and 'modname' must not contain a dash '-'. load_modules optional # Get rid of the starting colon: RODIRS=$(echo $RODIRS |cut -c2-) if [ $TORAM -ne 0 ]; then echo "${MARKER}: Live OS copied to RAM, you can remove the Live medium." if [ "LIVEFS" = "iso9660" ]; then eject ${LIVEMEDIA} fi fi # Setup persistence in case our media is writable, *and* the user # has created a directory "persistence" in the root of the media. # otherwise we let the block changes accumulate in RAM only. # Create the mount point for the writable upper directory of the overlay: # Assume the default to be a readonly media - we write to RAM: UPPERDIR=/mnt/live/changes OVLWORK=/mnt/live/.ovlwork if [ "$VIRGIN" = "0" ]; then if [ "LIVEFS" != "iso9660" -a -d /mnt/media/${PERSISTENCE} ]; then # Looks OK, but we need to remount the media in order to write # to the persistence directory: mount -o remount,rw /mnt/media # Try a write... just to be dead sure: if touch /mnt/media/${PERSISTENCE}/.rwtest 2>/dev/null && rm /mnt/media/${PERSISTENCE}/.rwtest 2>/dev/null ; then # Writable media and we are allowed to write to it. echo "${MARKER}: Writing persistent changes to media directory '/${PERSISTENCE}'." UPPERDIR=/mnt/media/${PERSISTENCE} OVLWORK=/mnt/media/.ovlwork fi elif [ "LIVEFS" != "iso9660" -a -f /mnt/media/${PERSISTENCE}.img ]; then # Use a container file; the filesystem needs to be writable: mount -o remount,rw /mnt/media # Find a free loop device to mount the persistence container file: prdev=$(find_loop) prdir=${PERSISTENCE}_$(od -An -N1 -tu1 /dev/urandom |tr -d ' ') mkdir -p /mnt/live/${prdir} losetup $prdev /mnt/media/${PERSISTENCE}.img # Check if the persistence container is LUKS encrypted: if cryptsetup isLuks $prdev 1>/dev/null 2>/dev/null ; then echo "Unlocking LUKS encrypted persistence file '/${PERSISTENCE}.img'" cryptsetup luksOpen $prdev ${PERSISTENCE} /dev/tty0 2>&1 if [ $? -ne 0 ]; then echo "${MARKER}: Failed to unlock persistence file '/${PERSISTENCE}.img'." echo "${MARKER}: Falling back to RAM." else # LUKS properly unlocked; from now on use the mapper device instead: prdev=/dev/mapper/${PERSISTENCE} fi fi prfs=$(blkid $prdev |rev |cut -d'"' -f2 |rev) mount -t $prfs $prdev /mnt/live/${prdir} 2>/dev/null if [ $? -ne 0 ]; then echo "${MARKER}: Failed to mount persistence file '/${PERSISTENCE}.img'." echo "${MARKER}: Falling back to RAM." else echo "${MARKER}: Writing persistent changes to file '/${PERSISTENCE}.img'." UPPERDIR=/mnt/live/${prdir}/${PERSISTENCE} OVLWORK=/mnt/live/${prdir}/.ovlwork fi fi else echo "${MARKER}: Writing changes to RAM - no persistence:" if [ ! -z "$LUKSVOL" ]; then # Even without persistence, we need to be able to write to the partition # if we are using a LUKS container file: mount -o remount,rw /mnt/media fi fi # Create the writable upper directory, plus the workdir which is required # for overlay to function (the two must be in the same POSIX filesystem): [ ! -d ${UPPERDIR} ] && mkdir -p ${UPPERDIR} [ ! -d ${OVLWORK} ] && mkdir -p ${OVLWORK} # Create the overlay of readonly and writable directories: mkdir -p /mnt/overlay mount -t overlay -o workdir=${OVLWORK},upperdir=${UPPERDIR},lowerdir=${RODIRS} overlay /mnt/overlay if [ $? -ne 0 -a "$VIRGIN" = "0" ]; then # Failed to create the persistent overlay - try without persistence: echo "${MARKER}: Failed to create persistent overlay, attempting to continue in RAM." UPPERDIR=/mnt/live/changes OVLWORK=/mnt/live/.ovlwork mkdir -p ${UPPERDIR} mkdir -p ${OVLWORK} mount -t overlay -o workdir=${OVLWORK},upperdir=${UPPERDIR},lowerdir=${RODIRS} overlay /mnt/overlay fi debugit # Make the underpinning RAM fs accessible in the live system (for fun): mkdir -p /mnt/overlay/mnt/live mount --bind /mnt/live /mnt/overlay/mnt/live if [ $TORAM -eq 0 ]; then # Same for the Linux filesystem on the USB stick: mkdir -p /mnt/overlay/mnt/livemedia mount --bind /mnt/media /mnt/overlay/mnt/livemedia fi if [ ! -z "$USE_SWAP" ]; then # Use any available swap device: for SWAPD in $(blkid |grep TYPE="\"swap\"" |cut -d: -f1) ; do echo "${MARKER}: Enabling swapping to '$SWAPD'" echo "$SWAPD swap swap defaults 0 0" >> /mnt/overlay/etc/fstab done fi if [ ! -z "$KEYMAP" ]; then # Configure custom keyboard mapping in console and X: echo "${MARKER}: Switching live console to '$KEYMAP' keyboard" cat < /mnt/overlay/etc/rc.d/rc.keymap #!/bin/sh # Load the keyboard map. More maps are in /usr/share/kbd/keymaps. if [ -x /usr/bin/loadkeys ]; then /usr/bin/loadkeys ${KEYMAP} fi EOT chmod 755 /mnt/overlay/etc/rc.d/rc.keymap fi if [ ! -z "$KEYMAP" -o ! -z "$XKB" ]; then # Set a keyboard mapping in X.Org, derived from the console map if needed: # Variable XKB can be set to "XkbLayout,XkbVariant", like "xkb=ch,fr" # You can set just the XkbVariant by adding something like "kbd=ch xkb=,fr" XKBLAYOUT=$(echo $XKB |cut -d, -f1) XKBVARIANT=$(echo $XKB |cut -d, -f2) # Ensure that XKBLAYOUT gets a value; XKBVARIANT is allowed to be empty. if [ -z "$XKBLAYOUT" ]; then if [ -z "$KEYMAP" ]; then XKBLAYOUT="us" else XKBLAYOUT="$(echo $KEYMAP |cut -c1-2)" fi fi else XKBLAYOUT="us" fi echo "${MARKER}: Switching live X desktop to '$XKBLAYOUT' keyboard" # Germans use the AltGr key, so Scroll Lock will be their Compose Key: if [ "$XKBLAYOUT" = "de" ]; then XKBOPTIONS="compose:sclk" else XKBOPTIONS="compose:ralt" fi # If the layout is not 'us' then add 'us' as a secondary nevertheless: if [ "$XKBLAYOUT" != "us" ]; then XKBLAYOUT="$XKBLAYOUT,us" XKBVARIANT="$XKBVARIANT," XKBOPTIONS="grp:alt_shift_toggle,grp_led:scroll,$XKBOPTIONS" fi mkdir -p /mnt/overlay/etc/X11/xorg.conf.d cat < /mnt/overlay/etc/X11/xorg.conf.d/30-keyboard.conf Section "InputClass" Identifier "keyboard-all" Driver "evdev" Option "XkbLayout" "$XKBLAYOUT" Option "XkbVariant" "$XKBVARIANT" Option "XkbOptions" "$XKBOPTIONS" MatchIsKeyboard "on" EndSection EOT if [ ! -z "$LOCALE" ]; then # Configure custom locale: echo "${MARKER}: Switching to '$LOCALE' locale" sed -i -e "s/^ *export LANG=.*/export LANG=${LOCALE}/" /mnt/overlay/etc/profile.d/lang.sh fi if [ ! -z "$TZ" -a -f /mnt/overlay/usr/share/zoneinfo/${TZ} ]; then # Configure custom timezone: echo "${MARKER}: Configuring timezone '$TZ'" cp /mnt/overlay/usr/share/zoneinfo/${TZ} /mnt/overlay/etc/localtime rm /mnt/overlay/etc/localtime-copied-from ln -s /usr/share/zoneinfo/${TZ} /mnt/overlay/etc/localtime-copied-from # Configure the hardware clock to be interpreted as localtime and not UTC: cat < /mnt/overlay/etc/hardwareclock # /etc/hardwareclock # # Tells how the hardware clock time is stored. # You should run timeconfig to edit this file. localtime EOT fi if [ ! -z "$LIVEPW" ]; then # User entered a custom live password on the boot commandline: echo "${MARKER}: Changing password for user 'live'." chroot /mnt/overlay /usr/sbin/chpasswd < /mnt/overlay/etc/HOSTNAME if [ -f /mnt/overlay/etc/NetworkManager/NetworkManager.conf ]; then sed -i -e "s/^hostname=.*/hostname=${LIVE_HOSTNAME}/" \ /mnt/overlay/etc/NetworkManager/NetworkManager.conf fi sed -i -e "s/^\(127.0.0.1\t*\)@DARKSTAR@.*/\1${LIVE_HOSTNAME}.example.net ${LIVE_HOSTNAME}/" /mnt/overlay/etc/hosts fi # Disable glamor 2D acceleration (QEMU needs this): if [ $GLAMORACCEL -eq 0 ]; then cat < /mnt/overlay/etc/X11/xorg.conf.d/20-noglamor.conf Section "Device" Identifier "modesetting" Driver "modesetting" Option "AccelMethod" "none" EndSection EOT fi # Blacklist kernel modules if requested: if [ ! -z "$BLACKLIST" ]; then mkdir -p /mnt/overlay/etc/modprobe.d echo "#Slackware Live blacklist" > /mnt/overlay/etc/modprobe.d/BLACKLIST-live.conf for kernelmod in $(echo $BLACKLIST |tr ',' ' '); do echo "blacklist $kernelmod" >> /mnt/overlay/etc/modprobe.d/BLACKLIST-live.conf done fi # Delete ALSA state file, the Live OS may be booted on different computers: rm -f /mnt/overlay/var/lib/alsa/asound.state # Copy contents of rootcopy directory (may be empty) to overlay: cp -af /mnt/media/${LIVEMAIN}/rootcopy/* /mnt/overlay/ 2>/dev/null # Bind any LUKS container into the Live filesystem: if [ ! -z "$LUKSVOL" ]; then for luksvol in $(echo $LUKSVOL |tr ',' ' '); do luksfil="$(echo $luksvol |cut -d: -f1)" luksmnt="$(echo $luksvol |cut -d: -f2)" luksnam="$(echo $(basename $luksfil) |tr '.' '_')" if [ "$luksmnt" = "$luksfil" ]; then # No optional mount point specified, so we use the default: /home/ luksmnt="/home" fi # Find a free loop device: lodev=$(find_loop) losetup $lodev /mnt/media/$luksfil echo "Unlocking LUKS encrypted container '$luksfil' at mount point '$luksmnt'" cryptsetup luksOpen $lodev $luksnam /dev/tty0 2>&1 if [ $? -ne 0 ]; then echo "${MARKER}: Failed to unlock LUKS container '$luksfil'... trouble ahead." else # Create the mount directory if it does not exist (unlikely): mkdir -p /mnt/overlay/$luksmnt # Let Slackware mount the unlocked container: luksfs=$(blkid /dev/mapper/$luksnam |rev |cut -d'"' -f2 |rev) if ! grep -q /dev/mapper/$luksnam /mnt/overlay/etc/fstab ; then echo "/dev/mapper/$luksnam $luksmnt $luksfs defaults 1 1" >> /mnt/overlay/etc/fstab fi # On shutdown, ensure that the container gets locked again: if ! grep -q "$luksnam $luksmnt" /mnt/overlay/etc/crypttab ; then echo "$luksnam $luksmnt" >> /mnt/overlay/etc/crypttab fi fi done fi # --------------------------------------------------------------------- # # SLACKWARE LIVE - !END! # # --------------------------------------------------------------------- # # Minimal changes to the original Slackware init follow: # Switch to real root partition: /sbin/udevadm settle --timeout=10 echo 0x0100 > /proc/sys/kernel/real-root-dev if [ ! -r /mnt/overlay/${INIT} ]; then echo "ERROR: No ${INIT} found on rootdev (or not mounted). Trouble ahead." echo " You can try to fix it. Type 'exit' when things are done." echo /bin/sh fi else echo echo "RESCUE mode" echo echo " You can try to fix or rescue your system now. If you want" echo " to boot into your fixed system, mount your root filesystem" echo " read-only under /mnt:" echo echo " # mount -o ro -t filesystem root_device /mnt" echo echo " Type 'exit' when things are done." echo /bin/sh fi # Need to make sure OPTIONS+="db_persist" exists for all dm devices # That should be handled in /sbin/mkinitrd now /sbin/udevadm info --cleanup-db /sbin/udevadm control --exit unset ERR umount /proc umount /sys umount /run # We disable the filesystem checking code in /etc/rc.d/rc.S, # so we need to keep the fs writable here. #mount -o ro,remount /mnt/overlay 2>/dev/null echo "${MARKER}: Slackware Live system is ready." echo "${MARKER}: exiting" exec switch_root /mnt/overlay $INIT $RUNLEVEL