+# 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
+ 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
+ # The host will kill qemu abruptly if guestfsd shuts down normally
+ 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