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#!/bin/sh
# $Id: linuxrc,v 1.70.2.4 2005/11/06 21:28:58 smiley73 Exp $
#
# $Source: /cvsroot/devil-linux/build/config/etc/initrd/linuxrc,v $
# $Revision: 1.70.2.4 $
# $Date: 2005/11/06 21:28:58 $
#
# http://www.devil-linux.org
#
# system bootstrap loader
# - loads config from floppy
# - detects the cdrom and loads the system into ramdisk (/dev/shm)
# - starts up the real system
#
NORMAL="echo -en \\033[0;39m"
GREEN="echo -en \\033[1;32m"
YELLOW="echo -en \\033[1;33m"
RED="echo -en \\033[1;31m"
BLUE="echo -en \\033[1;34m"
alias beep='echo -en "\007"'
alias l="ls -la"
$RED
echo
echo "********************************************************************************"
echo "* *"
echo "* Welcome to Devil-Linux *"
echo "* *"
echo "********************************************************************************"
echo " http://www.devil-linux.org/ "
echo
$NORMAL
export PATH=$PATH:/sbin:/usr/sbin
scan_devices_for_config() {
# $1 = filename
# $... = list of devices
FILE=$1
shift
for SRC in "$@"
do
echo -n "Checking for \"$FILE\" on \"$SRC\" ... "
if mount -n -t auto $SRC /floppy >/dev/null 2>&1 ; then
if [ -e /floppy/$FILE ] ; then
$GREEN
echo "success!"
$NORMAL
DL_CONFIG_SOURCE=$SRC
DL_CONFIG_FILE=$FILE
return 0
else
$YELLOW
echo "file not found"
$NORMAL
umount /floppy # in case user swaps floppy when we are accepting input
fi
else
$RED
echo "mount failed"
$NORMAL
fi
done
return 1
}
parse_config_cmdline() {
# $1 = cmdline
CMD="$1"
# split at ','
OIFS=$IFS
IFS=,
for CONFIG_USER in $CMD
do
IFS=$OIFS
CONFIG_USER_ERROR=0
CONFIG_USER_SRC=""
CONFIG_USER_FILE=""
if [ "$CONFIG_USER" != "" ]; then
case `echo $CONFIG_USER | awk -v FS=: '{ print NF-1 }'` in
0 )
CONFIG_USER_SRC=`echo $CONFIG_USER | grep "/dev/"`
CONFIG_USER_FILE=`echo $CONFIG_USER | grep -v "/dev/"`
;;
1 )
CONFIG_USER_SRC=`echo ${CONFIG_USER%:*}`
CONFIG_USER_FILE=`echo ${CONFIG_USER#*:}`
;;
* )
CONFIG_USER_ERROR=1
;;
esac
# sanity checks
[ "$CONFIG_USER_SRC" != "" ] && CONFIG_USER_ERROR=`echo $CONFIG_USER_SRC | grep -c -v "^/dev/"`
[ "$CONFIG_USER_FILE" != "" ] && CONFIG_USER_ERROR=`echo $CONFIG_USER_FILE | grep -c "/dev/"`
[ "$CONFIG_USER" = ":" ] && CONFIG_USER_ERROR=1 # just in case...
else
CONFIG_USER_ERROR=1
fi
case $CONFIG_USER_ERROR in
0 )
$BLUE
echo -n "Trying to load configuration "
$GREEN
if [ "$CONFIG_USER_FILE" = "" ]; then
CONFIG_USER_FILE=$CONFIG_FILE
fi
echo -n "\"$CONFIG_USER_FILE\" "
$BLUE
if [ "$CONFIG_USER_SRC" != "" ]; then
echo -n "from device "
$GREEN
echo -n "\"$CONFIG_USER_SRC\""
$BLUE
else
CONFIG_USER_SRC=$CONFIG_SRC_LIST
echo -n "from any device"
fi
echo "."
$NORMAL
scan_devices_for_config $CONFIG_USER_FILE $CONFIG_USER_SRC
if [ $? = 0 ]; then
return 0
else
$YELLOW
echo "Sorry, could not load your configuration. Continuing searching..."
$NORMAL
fi
;;
* )
$RED
echo -n "Improper config parameter : \"$CONFIG_USER\". Ignored."
beep; sleep 1; echo -n "."; sleep 1; beep; echo "."
$NORMAL
;;
esac
done
return 1
}
mod_config() {
[ ! -e /etc/sysconfig/config.org ] && cp /etc/sysconfig/config /etc/sysconfig/config.org
rm -f /etc/sysconfig/config.tmp
cp /etc/sysconfig/config /etc/sysconfig/config.tmp
sed "s/$1/$2/" /etc/sysconfig/config.tmp > /etc/sysconfig/config
rm -f /etc/sysconfig/config.tmp
}
ask_yes_no()
{
ANS=""
read -p " (y/n) " -r ANS
echo
[ ${ANS:-n} = "y" -o ${ANS:-n} = "Y" ] && return 0
return 1
}
# make sure all kernel warnings get lost (seriously!)
klogd -c 1
# get version info
DLVERSION=$(cat VERSION)
# mount proc
mount -n -t proc none /proc
# mount usb
mount -n -t usbdevfs none /proc/bus/usb
echo Kernel $(uname -r)
# mount shared memory filesystem with a limit of 40GB (for now)
echo "Mounting SHM FS on /shm"
mount -n -t shm shmfs /shm 2> /dev/null || mount -n -t tmpfs none /shm
# get rid of modprobe warnings
mkdir -p /shm/etc
# 2007dec07: commented this out (edrx)
# echo "waiting until usb-storage driver has initialized all devices ..."
# sleep 15
#grep usb-storage /proc/bus/usb/devices
echo -e "Loading loop-AES module";
modprobe loop 2> /dev/null
# save loaded config
DL_CONFIG_SOURCE=""
DL_CONFIG_FILE=""
$GREEN
echo "Searching for configuration media"
$NORMAL
# parse user config
CONFIG_USER=`awk -v RS=' ' -v FS='=' '/^DL_config=/ { print $2 }' /proc/cmdline`
CONFIG_USER_ONLY=`grep -c DL_config_no_scan /proc/cmdline`
if [ "$CONFIG_USER_ONLY" != "0" ]; then
$RED
echo "Disabling automatic scanning for Devil-Linux configuration archive! Good Luck."
$NORMAL
fi
# generate the device list we need to search for the configuration information
CDROM_IDE=`find /dev/ide/ -name "cd*" 2> /dev/null`
CDROM_SCSI=`find /dev/scsi/ -name "cd*" 2> /dev/null`
PARTITIONS_IDE=`find /dev/ide/ -name "part*" 2> /dev/null`
PARTITIONS_SCSI=`find /dev/scsi/ -name "part*" 2> /dev/null`
DISCS_SCSI=`find /dev/scsi/ -name "disc" 2> /dev/null`
FLOPPIES=`find /dev/floppy/ -name "?" 2> /dev/null`
CONFIG_SRC_LIST="$PARTITIONS_SCSI $PARTITIONS_IDE $DISCS_SCSI $CDROM_IDE $CDROM_SCSI $FLOPPIES"
CONFIG_FILE="etc.tar.bz2"
# 2007dec07: edrx
echo "Entering a shell..."
echo "linuxrc will continue when you exit it (with \"exit\", \^D\", etc)."
/bin/sh
echo "Continuing..."
until [ "$DL_CONFIG_SOURCE" != "" ] ; do
if [ "$CONFIG_USER" != "" ]; then
parse_config_cmdline $CONFIG_USER && continue
fi
if [ "$CONFIG_USER_ONLY" = "0" ]; then
# scan for etc.tar.bz2 on all devices
scan_devices_for_config $CONFIG_FILE $CONFIG_SRC_LIST && continue
fi
# no configuration has been found yet
for CFG_SRC in $CONFIG_SRC_LIST
do
echo -e "Looking for empty configuation media on $CFG_SRC"
if mount -n -t auto $CFG_SRC /floppy >/dev/null 2>&1 ; then
umount /floppy # in case user swaps floppy when we are accepting input
# offer to copy the configuration file if device is not a CD
if [ ! "${CFG_SRC##/*/}" = "cd" ];then
beep;
$YELLOW
echo -e "\n*** Found empty configuration media. ***"
$NORMAL
echo -n "Should I copy default configuration to it?"
if ask_yes_no ; then
echo -n "Would you like to probe for SCSI controllers now?"
if ask_yes_no ; then
/probe_all_scsi_modules
fi
if ! /mount_cdrom /cdrom noreboot ; then
$RED
echo -e "Cannot find CD drive - try probing for SCSI controllers"
$NORMAL
continue
fi
mount -n -t auto $CFG_SRC /floppy >/dev/null 2>&1 || continue
cp -i /cdrom/config/etc.tar.bz2 /floppy/ || continue
umount /cdrom
sync
DL_CONFIG_SOURCE=$CFG_SRC
DL_CONFIG_FILE="etc.tar.bz2"
continue 2
fi
fi
fi
done
beep; sleep 1; beep; sleep 1; beep;
$RED
echo -e "Please insert Configuration Media and press 'ENTER'"
$NORMAL
read ANS
echo
done
unset ANS RET
echo $DL_CONFIG_SOURCE > /shm/DL_CONFIG_SOURCE
echo $DL_CONFIG_FILE > /shm/DL_CONFIG_FILE
export DL_CONFIG_SOURCE
export DL_CONFIG_FILE
mkdir -p /shm/root
# check if the DL ISO got upgraded
if [ -e /shm/dl_iso_replaced ]; then
cd /cdrom
#change to new root
pivot_root . initrd
$RED
echo "Rebooting..."
$NORMAL
exec /usr/sbin/chroot . /sbin/reboot -f
fi
echo "loading configuration"
tar -C /shm -xjf /floppy/$DL_CONFIG_FILE
# create mtab for mount
cat /proc/mounts > /etc/mtab
# load modules
/load_modules
# check to see if cdrom has already been mounted
if [ ! -e /cdrom/DEVIL-LINUX ] ; then
# find the CDROM
/mount_cdrom /cdrom
fi
DL_DEVICE=$(cat /shm/DL_DEVICE)
export DL_DEVICE
if [ -f /cdrom/config/pubring.gpg ]; then
$YELLOW
echo "checking PGP signature of configuration"
$NORMAL
if ! /bin/gpgv --homedir /cdrom/config --keyring /cdrom/config/pubring.gpg --ignore-time-conflict -q /floppy/$DL_CONFIG_FILE.sig ;then
$RED
echo
echo "********************************************************************************"
echo "* !!! WARNING !!! WARNING !!! WARNING !!! WARNING !!! WARNING !!! *"
echo "* *"
echo "* The verification of the configuration signature failed ! *"
echo "* *"
echo "* There is a strong possibility that somebody tempered with your system ! *"
echo "* *"
echo "* !!! WARNING !!! WARNING !!! WARNING !!! WARNING !!! WARNING !!! *"
echo "********************************************************************************"
beep; sleep 1; beep; sleep 1; beep; sleep 1; beep; sleep 1; beep; sleep 1; beep;
$NORMAL
echo
echo -n "Do you want to continue? "
if ! ask_yes_no ; then
exit
fi
fi
fi
# unmount config media
umount /floppy
# Update modules for SCSI CD (if any)
if [ -s /shm/.probed_modules ] ; then
echo "Updating /etc/sysconfig/config for SCSI modules."
mod_config '^INITRD_MODULES=\"\"$' 'INITRD_MODULES=\"'$(cat /shm/.probed_modules)'\"'
rm -f /shm/.probed_modules
fi
# remove uneeded modules
modprobe -r 2> /dev/null
sleep 1
modprobe -r 2> /dev/null
# kill our klogd
kill `ps ax | grep klogd | cut -f 1 -d 0` 2> /dev/null
# mount shared memory filesystem
echo "Mounting SHM FS on /cdrom/shm"
mount -n -o bind /shm /cdrom/shm
umount /shm
echo "Mounting DEV FS on /cdrom/dev"
mount -n -t devfs none /cdrom/dev
# unmount usb
umount /proc/bus/usb
# unmount proc because the final system will mount it again
umount /proc
# start the system by swapping /dev/ram0 and /shm
echo 'Starting up final system...'
cd /cdrom
#change to new root and start up the real system
pivot_root . initrd
exec /usr/sbin/chroot . /sbin/pre_init $DL_CONFIG_SOURCE $DL_CONFIG_FILE $@ <dev/console >dev/console 2>&1
# something went wrong
echo
echo 'Starting the system failed!'
echo 'Please mail a bug report to bugs@devil-linux.org'
echo
exit