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|
#!/bin/sh
echo Starting /init script ...
PATH=/sbin:/usr/sbin:/bin:/usr/bin
export PATH
# Debian bug 606622.
RUNLEVEL=S
PREVLEVEL=N
export RUNLEVEL PREVLEVEL
mkdir -p /sysroot
if [ ! -d /proc ]; then rm -f /proc; fi
mkdir -p /proc
mount -t proc /proc /proc
if [ ! -d /sys ]; then rm -f /sys; fi
mkdir -p /sys
mount -t sysfs /sys /sys
mkdir -p /run/lock
# devtmpfs is required since udev 176
mount -t devtmpfs /dev /dev
if [ ! -L /etc/init.d/udev -a -x /etc/init.d/udev ]; then
if type service >/dev/null 2>&1; then
service udev start
else
/etc/init.d/udev start
fi
elif [ -x /sbin/start_udev ] && /sbin/start_udev; then
:
else
# Find udevd and run it directly.
for f in /sbin/udevd /lib/udev/udevd \
/lib/systemd/systemd-udevd /usr/lib/systemd/systemd-udevd \
/usr/lib/udev/udevd; do
if [ -x "$f" ]; then UDEVD="$f"; fi
done
if [ -n "$UDEVD" ]; then
echo -e '\000\000\000\000' > /proc/sys/kernel/hotplug
$UDEVD --daemon
udevadm trigger
udevadm settle --timeout=600
else
echo No udevd, creating /dev manually.
mount -t tmpfs none /dev
mkdir /dev/pts /dev/shm /dev/mapper
mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts
# Must do each MAKEDEV individually, because if one device fails,
# MAKEDEV will quit without creating the rest (RHBZ#507374).
for dev in mem null port zero core full ram tty console fd \
hda hdb hdc hdd sda sdb sdc sdd loop sd; do
MAKEDEV $dev ||:
done
mknod /dev/ptmx c 5 2; chmod 0666 /dev/ptmx
mknod /dev/random c 1 8; chmod 0666 /dev/random
mknod /dev/urandom c 1 9; chmod 0444 /dev/urandom
ln -sf /proc/self/fd/0 /dev/stdin
ln -sf /proc/self/fd/1 /dev/stdout
ln -sf /proc/self/fd/2 /dev/stderr
modprobe virtio_pci
modprobe virtio_net
fi
fi
if grep -sq selinux=1 /proc/cmdline; then
mount -t selinuxfs none /selinux
fi
# Update the system clock.
hwclock -u -s
# Set up the network.
ip addr add 127.0.0.1/8 brd + dev lo scope host
ip link set dev lo up
ip addr add 169.254.2.10/16 brd + dev eth0 scope global
ip link set dev eth0 up
ip route add default via 169.254.2.2
# Scan for MDs.
mdadm -As --auto=yes --run
# Scan for LVM.
modprobe dm_mod ||:
lvm vgscan --ignorelockingfailure
lvm vgchange -ay --ignorelockingfailure
# Improve virtio-blk performance (RHBZ#509383).
for f in /sys/block/vd*/queue/rotational; do echo 1 > $f; done
# http://kbase.redhat.com/faq/docs/DOC-5428
# Disabled this until https://bugzilla.redhat.com/show_bug.cgi?id=630583
# is fixed (broken in Linux 2.6.36).
#for f in /sys/block/[hsv]d*/queue/scheduler; do echo noop > $f; done
# These are useful when debugging.
if grep -sq guestfs_verbose=1 /proc/cmdline; then
ls -lR /dev
cat /proc/mounts
lvm pvs
lvm vgs
lvm lvs
ip a
ip r
lsmod
#hwclock -r
date
#ping -n -v -c 5 10.0.2.2
#ping -n -v -c 5 10.0.2.4
echo -n "uptime: "; cat /proc/uptime
fi
if ! grep -sq guestfs_rescue=1 /proc/cmdline; then
# Run the daemon under valgrind if ./configure --enable-valgrind-daemon
vg_channel=/dev/virtio-ports/org.libguestfs.valgrind
if [ -w $vg_channel ]; then
if [ -r /etc/guestfsd.suppressions ]; then
suppressions="--suppressions=/etc/guestfsd.suppressions"
fi
exec 3>$vg_channel
vg="valgrind --leak-check=full --log-fd=3 --error-exitcode=119 --max-stackframe=8388608 --child-silent-after-fork=yes $suppressions"
echo "enabling valgrind: $vg"
fi
# The host will kill qemu abruptly if guestfsd shuts down normally
$vg guestfsd
# Otherwise we try to clean up gracefully. For example, this ensures that a
# core dump generated by the guest daemon will be written to disk.
else
# Use appliance in rescue mode, also used by the virt-rescue command.
eval $(grep -Eo 'TERM=[^[:space:]]+' /proc/cmdline)
PS1='><rescue> '
export TERM PS1
echo
echo "------------------------------------------------------------"
echo
echo "Welcome to virt-rescue, the libguestfs rescue shell."
echo
echo "Note: The contents of / are the rescue appliance."
echo "You have to mount the guest's partitions under /sysroot"
echo "before you can examine them."
echo
bash -i
echo
echo "virt-rescue: Syncing the disk now before exiting ..."
echo
fi
sync
reboot -f
|
