Version 1.7.6.

[libguestfs.git] / appliance / init

diff --git a/appliance/init b/appliance/init
index 84ee96e..d7fe24e 100755 (executable)
--- a/appliance/init
+++ b/appliance/init
@@ -2,12 +2,16 @@
 
 echo Starting /init script ...
 
-PATH=/sbin:/usr/sbin:$PATH
+PATH=/sbin:/usr/sbin:/bin:/usr/bin
+export PATH
 
+mkdir -p /sysroot
+
+rm -f /proc; mkdir /proc
 mount -t proc /proc /proc
 mount -t sysfs /sys /sys
 
-if [ -x /etc/init.d/udev ]; then
+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
@@ -46,11 +50,16 @@ if grep -sq selinux=1 /proc/cmdline; then
   mount -t selinuxfs none /selinux
 fi
 
-modprobe dm_mod ||:
+# Update the system clock.
+hwclock -u -s
 
+# Set up the network.
 ifconfig lo 127.0.0.1
-ifconfig eth0 10.0.2.10
-route add default gw 10.0.2.2
+ifconfig eth0 169.254.2.10
+route add default gw 169.254.2.2
+
+# Scan for LVM.
+modprobe dm_mod ||:
 
 lvm vgscan --ignorelockingfailure
 lvm vgchange -ay --ignorelockingfailure
@@ -58,33 +67,54 @@ lvm vgchange -ay --ignorelockingfailure
 # Improve virtio-blk performance (RHBZ#509383).
 for f in /sys/block/vd*/queue/rotational; do echo 1 > $f; done
 
-# Keep these to enhance the usefulness of debug output.
-ls -l /dev
-cat /proc/mounts
-lvm pvs
-lvm vgs
-lvm lvs
-ifconfig
-netstat -rn
-lsmod
-#ping -n -v -c 5 10.0.2.2
-#ping -n -v -c 5 10.0.2.4
+# 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
 
-echo -n "uptime: "; cat /proc/uptime
+# 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
+    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
+  # The host will kill qemu abruptly if guestfsd shuts down normally
+  guestfsd -f
+
+  # 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
 
-# Use appliance in rescue mode, also used by the virt-rescue command.
-TERM=linux ;# XXX library should pass this from library's environment
-PS1='><rescue> '
-export TERM PS1
-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
-exec bash -i
+sync
+/sbin/reboot -f