Support 9p-virtio filesystem for mounting the DCS-directory.

[grml-autoconfig.git] / autoconfig.functions

diff --git a/autoconfig.functions b/autoconfig.functions
index 42c03bd..5a25040 100755 (executable)
--- a/autoconfig.functions
+++ b/autoconfig.functions
@@ -1512,6 +1512,17 @@ else
         fi
       fi
       DCSDEVICE=$(blkid -t LABEL=$GRMLCFG | head -1 | awk -F: '{print $1}')
+
+      modprobe 9p 2>/dev/null || true
+      if [ -z "$DCSDEVICE" ] && grep -q 9p /proc/filesystems ; then
+          if grep -q "$GRMLCFG" /sys/bus/virtio/devices/*/mount_tag 2>/dev/null ; then
+            einfo "Found 9p-virtio fs with mount_tag $GRMLCFG"
+            DCSDEVICE="$GRMLCFG"
+            MOUNTOPTIONS="ro,trans=virtio"
+            DCSFS="9p"
+          fi
+      fi
+
       if [ -n "$DCSDEVICE" ]; then
         DCSMP="/mnt/grmlcfg"
       fi
@@ -1530,7 +1541,7 @@ else
       else
         [ -d $DCSMP ] || mkdir $DCSMP
         umount $DCSMP >>$DEBUG 2>&1 # make sure it is not mounted
-        mount -o ro -t auto $DCSDEVICE  $DCSMP ; RC="$?"
+        mount -o ${MOUNTOPTIONS:-ro} -t ${DCSFS:-auto} $DCSDEVICE  $DCSMP ; RC="$?"
         if [[ $RC == 0 ]]; then
           einfo "Successfully mounted $DCSDEVICE to $DCSMP (readonly)." ; eend 0
         else