[Xen-devel] [PATCH] mount /proc/xen in init.d/xen

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

pvops dom0 kernels have a separate xenfs which has to be mounted on
/proc/xen.  Systems with older configurations don't have xenfs listed
in fstab, and it can sometimes make sense to keep it that way (for
example, if the dom0 wants to boot a native-only kernel too).

The attached patch to the script which ends up in /etc/init.t/xend
mounts /proc/xen if it appears to be necessary.

Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>

diff -r 18cd7c378c48 tools/hotplug/Linux/init.d/xend
--- a/tools/hotplug/Linux/init.d/xend   Mon Sep 07 14:26:06 2009 +0100
+++ b/tools/hotplug/Linux/init.d/xend   Tue Sep 08 16:06:15 2009 +0100
@@ -21,6 +21,15 @@
 
 shopt -s extglob
 test -f /etc/sysconfig/xend && . /etc/sysconfig/xend
+
+if   test "x$1" = xstart && \
+     test -d /proc/xen && \
+   ! test -d /proc/xen/capabilities && \
+     grep '    xenfs$' /proc/filesystems >/dev/null && \
+   ! grep '^xenfs ' /proc/mounts >/dev/null;
+then
+       mount -t xenfs xenfs /proc/xen
+fi
 
 if ! grep -q "control_d" /proc/xen/capabilities ; then
        exit 0

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