X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=appliance%2Finit;h=89b622cd8ad36870779f7ca7d7f8755525438a82;hb=cf4609fb7f0eac897f0995b9b3b5bb783a5ccec2;hp=41ce91660c2edfbdd6322a92572e6414aa966eb7;hpb=b7f39224e17eecf53ea2671122d4b3176e4d202f;p=libguestfs.git

diff --git a/appliance/init b/appliance/init
index 41ce916..89b622c 100755
--- a/appliance/init
+++ b/appliance/init
@@ -1,28 +1,116 @@
 #!/bin/sh
+
 echo Starting /init script ...
-PATH=/sbin:/usr/sbin:$PATH
-mount -t tmpfs none /dev
-mkdir /dev/pts /dev/shm /dev/mapper
-MAKEDEV mem null port zero core full ram tty console fd \
-  hda hdb hdc hdd sda sdb sdc sdd loop sd
-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
+
+PATH=/sbin:/usr/sbin:/bin:/usr/bin
+export PATH
+
+mkdir -p /sysroot
+
 mount -t proc /proc /proc
 mount -t sysfs /sys /sys
-mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts
-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
+
+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
+  :
+elif [ -x /sbin/udevd ]; then
+  echo -e '\000\000\000\000' > /proc/sys/kernel/hotplug
+  /sbin/udevd --daemon
+  /sbin/udevadm trigger
+  /sbin/udevadm settle --timeout=10
+else
+  echo No udev, 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
+
+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.
+ifconfig lo 127.0.0.1
+ifconfig eth0 169.254.2.10
+route add default gw 169.254.2.2
+
+# Scan for LVM.
 modprobe dm_mod ||:
-/sbin/ifconfig lo 127.0.0.1
-/sbin/ifconfig eth0 10.0.2.10
-/sbin/route add default gw 10.0.2.2
+
 lvm vgscan --ignorelockingfailure
 lvm vgchange -ay --ignorelockingfailure
-if grep -sq guestfs_rescue=1 /proc/cmdline; then
-  bash -i
+
+# 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 -l /dev
+    cat /proc/mounts
+    lvm pvs
+    lvm vgs
+    lvm lvs
+    ifconfig
+    netstat -rn
+    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
+  exec guestfsd -f
 fi
-exec guestfsd -f
+
+# 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 "(Don't worry if you see a 'Kernel panic' message below)"
+echo
+sync
+sleep 1
+sync