init
wait_for_loginit()
{
if getarg rdinitdebug; then
set +x
exec 0<>/dev/console 1<>/dev/console 2<>/dev/console
# wait for loginit
i=0
while [ $i -lt 10 ]; do
j=$(jobs)
[ -z "$j" ] && break
[ -z "${j##*Running*}" ] || break
sleep 0.1
i=$(($i+1))
done
[ $i -eq 10 ] && kill %1 >/dev/null 2>&1
while pidof -x /sbin/loginit >/dev/null 2>&1; do
for pid in $(pidof -x /sbin/loginit); do
kill $HARD $pid >/dev/null 2>&1
done
HARD="-9"
done
set -x
fi
}
emergency_shell()
{
if [ "$1" = "-n" ]; then
_rdshell_name=$2
shift 2
else
_rdshell_name=dracut
fi
wait_for_loginit
echo ; echo
echo $@
source_all emergency
echo
if getarg rdshell || getarg rdbreak; then
echo "Dropping to debug shell."
echo
export PS1="$_rdshell_name:\${PWD}# "
[ -e /.profile ] || echo "exec 0<>/dev/console 1<>/dev/console 2<>/dev/console" > /.profile
sh -i -l
else
echo "Boot has failed, sleeping forever."
while :; do sleep 365d;done
fi
}
export PATH=/sbin:/bin:/usr/sbin:/usr/bin
export TERM=linux
NEWROOT="/sysroot"
trap "emergency_shell Signal caught!" 0
RDDEBUG=""
. /lib/dracut-lib.sh
mknod /dev/null c 1 3
# mount some important things
mount -t proc /proc /proc >/dev/null 2>&1
mount -t sysfs /sys /sys >/dev/null 2>&1
if [ ! -c /dev/ptmx ]; then
# try to mount devtmpfs
if ! mount -t devtmpfs -omode=0755 udev /dev >/dev/null 2>&1; then
# if it failed fall back to normal tmpfs
mount -t tmpfs -omode=0755 udev /dev >/dev/null 2>&1
# Make some basic devices first, let udev handle the rest
mknod /dev/null c 1 3
mknod /dev/ptmx c 5 2
mknod /dev/console c 5 1
mknod /dev/kmsg c 1 11
fi
fi
ln -s /proc/self/fd /dev/fd >/dev/null 2>&1
if getarg rdinitdebug; then
getarg quiet && DRACUT_QUIET="yes"
mkfifo /dev/initlog.pipe
/sbin/loginit $DRACUT_QUIET </dev/initlog.pipe >/dev/console 2>&1 &
exec >/dev/initlog.pipe 2>&1
else
exec 0<>/dev/console 1<>/dev/console 2<>/dev/console
fi
setdebug
mkdir /dev/shm
mkdir /dev/pts
mount -t devpts -o gid=5,mode=620 devpts /dev/pts >/dev/null 2>&1
mount -t tmpfs tmpfs /dev/shm >/dev/null 2>&1
UDEVVERSION=$(udevadm --version)
source_conf /etc/conf.d
# run scriptlets to parse the command line
getarg 'rdbreak=cmdline' && emergency_shell -n cmdline "Break before cmdline"
source_all cmdline
[ -z "$root" ] && die "No or empty root= argument"
[ -z "$rootok" ] && die "Don't know how to handle 'root=$root'"
# Network root scripts may need updated root= options,
# so deposit them where they can see them (udev purges the env)
{
echo "root='$root'"
echo "rflags='$rflags'"
echo "fstype='$fstype'"
echo "netroot='$netroot'"
echo "NEWROOT='$NEWROOT'"
} > /tmp/root.info
# pre-udev scripts run before udev starts, and are run only once.
getarg 'rdbreak=pre-udev' && emergency_shell -n pre-udev "Break before pre-udev"
source_all pre-udev
# start up udev and trigger cold plugs
udevd --daemon --resolve-names=never
UDEV_LOG_PRIO_ARG=--log-priority
UDEV_QUEUE_EMPTY="udevadm settle --timeout=0"
if [ $UDEVVERSION -lt 140 ]; then
UDEV_LOG_PRIO_ARG=--log_priority
UDEV_QUEUE_EMPTY="udevadm settle --timeout=1"
fi
getarg rdudevinfo && udevadm control $UDEV_LOG_PRIO_ARG=info
getarg rdudevdebug && udevadm control $UDEV_LOG_PRIO_ARG=debug
getarg 'rdbreak=pre-trigger' && emergency_shell -n pre-trigger "Break before pre-trigger"
source_all pre-trigger
# then the rest
udevadm trigger --action=add $udevtriggeropts >/dev/null 2>&1
getarg 'rdbreak=initqueue' && emergency_shell -n initqueue "Break before initqueue"
RDRETRY=$(getarg 'rd_retry=')
RDRETRY=${RDRETRY:-20}
RDRETRY=$(($RDRETRY*2))
i=0
while :; do
check_finished && break
udevsettle
check_finished && break
if [ -f /initqueue/work ]; then
rm /initqueue/work
fi
for job in /initqueue/*.sh; do
[ -e "$job" ] || break
job=$job . $job
check_finished && break 2
done
$UDEV_QUEUE_EMPTY >/dev/null 2>&1 || continue
modprobe scsi_wait_scan && rmmod scsi_wait_scan
$UDEV_QUEUE_EMPTY >/dev/null 2>&1 || continue
for job in /initqueue-settled/*.sh; do
[ -e "$job" ] || break
job=$job . $job
check_finished && break 2
done
$UDEV_QUEUE_EMPTY >/dev/null 2>&1 || continue
# no more udev jobs and queues empty.
sleep 0.5
# dirty hack for some cdrom drives,
# which report no medium for quiet
# some time.
for cdrom in /sys/block/sr*; do
[ -e "$cdrom" ] || continue
# skip, if cdrom medium was already found
strstr "$(udevadm info --query=env --path=${cdrom##/sys})" \
ID_CDROM_MEDIA && continue
echo change > "$cdrom/uevent"
done
i=$(($i+1))
[ $i -gt $RDRETRY ] \
&& { flock -s 9 ; emergency_shell "No root device found"; } 9>/.console_lock
done
unset job
unset queuetriggered
# pre-mount happens before we try to mount the root filesystem,
# and happens once.
getarg 'rdbreak=pre-mount' && emergency_shell -n pre-mount "Break pre-mount"
source_all pre-mount
getarg 'rdbreak=mount' && emergency_shell -n mount "Break mount"
# mount scripts actually try to mount the root filesystem, and may
# be sourced any number of times. As soon as one suceeds, no more are sourced.
i=0
while :; do
[ -d "$NEWROOT/proc" ] && break;
for f in /mount/*.sh; do
[ -f "$f" ] && . "$f"
[ -d "$NEWROOT/proc" ] && break;
done
i=$(($i+1))
[ $i -gt 20 ] \
&& { flock -s 9 ; emergency_shell "Can't mount root filesystem"; } 9>/.console_lock
done
{
echo -n "Mounted root filesystem "
while read dev mp rest; do [ "$mp" = "$NEWROOT" ] && echo $dev; done < /proc/mounts
} | vinfo
# pre pivot scripts are sourced just before we switch over to the new root.
getarg 'rdbreak=pre-pivot' && emergency_shell -n pre-pivot "Break pre-pivot"
source_all pre-pivot
# by the time we get here, the root filesystem should be mounted.
# Try to find init.
for i in "$(getarg init=)" /sbin/init /etc/init /init /bin/sh; do
[ -f "$NEWROOT$i" -a -x "$NEWROOT$i" ] && { INIT="$i"; break; }
done
[ "$INIT" ] || {
echo "Cannot find init!"
echo "Please check to make sure you passed a valid root filesystem!"
emergency_shell
}
getarg rdbreak && emergency_shell -n switch_root "Break before switch_root"
# stop udev queue before killing it
udevadm control --stop-exec-queue
HARD=""
while pidof udevd >/dev/null 2>&1; do
for pid in $(pidof udevd); do
kill $HARD $pid >/dev/null 2>&1
done
HARD="-9"
done
# Clean up the environment
for i in $(export -p); do
i=${i#declare -x}
i=${i#export}
i=${i%%=*}
[ "$i" = "root" -o "$i" = "PATH" -o "$i" = "HOME" -o "$i" = "TERM" ] || unset $i
done
initargs=""
read CLINE </proc/cmdline
if getarg init= >/dev/null ; then
ignoreargs="console BOOT_IMAGE"
# only pass arguments after init= to the init
CLINE=${CLINE#*init=}
set $CLINE
shift
for x in "$@"; do
for s in $ignoreargs; do
[ "${x%%=*}" = $s ] && continue 2
done
initargs="$initargs $x"
done
unset CLINE
else
set $CLINE
shift
for x in "$@"; do
case "$x" in
[0-9]|s|S|single|emergency|auto )
initargs="$initargs $x"
;;
esac
done
fi
# Debug: Copy state
if getarg rdcopystate; then
mkdir /dev/.initramfs/
cp /tmp/* /dev/.initramfs/ >/dev/null 2>&1
fi
info "Switching root"
wait_for_loginit
exec switch_root "$NEWROOT" "$INIT" $initargs || {
echo "Something went very badly wrong in the initramfs. Please "
echo "file a bug against dracut."
emergency_shell
}
# vim:ts=8:sw=4:sts=4:et
grub/grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that
# all kernel and initrd paths are relative to /, eg.
# root (hd0,0)
# kernel /boot/vmlinuz-version ro root=/dev/sdb1
# initrd /boot/initrd-[generic-]version.img
#boot=/dev/sdb
default=0
timeout=0
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
hiddenmenu
title Fedora (2.6.35.6-45.fc14.i686)
root (hd0,0)
kernel /boot/vmlinuz-2.6.35.6-45.fc14.i686 ro root=UUID=ba4eeed6-a862-416d-8e56-009241dcf5fb netroot=iscsi:@115.xxx.xxx.xxx::3260::iqn.2011-02.com.smileserv:115.xxx.xxx.xxx iscsi_initiator=iqn.smileserv.com:115.xxx.xxx.xxx ip=eth0:dhcp ifname=eth0:00:XX:XX:XX:XX:6e rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFonT=latarcyrheb-sun16 KEYTABLE=us rhgb quiet
initrd /boot/initramfs-2.6.35.6-45.fc14.i686.img
