1 files changed, 42 insertions, 0 deletions
diff --git a/testing/mdadm/mdadm_hook b/testing/mdadm/mdadm_hook
new file mode 100755
index 000000000..1d217a5a8
--- /dev/null
+++ b/testing/mdadm/mdadm_hook
@@ -0,0 +1,42 @@
+# vim: set ft=sh:
+run_hook ()
+{
+    input="$(cat /proc/cmdline)"
+    mdconfig="/etc/mdadm.conf"
+    # for partitionable raid, we need to load md_mod first!
+    modprobe md_mod 2>/dev/null
+    # If md is specified on commandline, create config file from those parameters.
+    if [ "$(echo $input | grep "md=")" ]; then
+        #Create initial mdadm.conf
+        # scan all devices in /proc/partitions
+        echo DEVICE partitions > $mdconfig
+        for i in $input; do 
+            case $i in
+                # raid 
+                md=[0-9]*,/*)
+                    device="$(echo "$i" | sed -e 's|,/.*||g' -e 's|=||g')"
+                    array="$(echo $i | cut -d, -f2-)"
+                    echo "ARRAY /dev/$device devices=$array" >> $mdconfig
+                    ;;
+                # partitionable raid
+                md=d[0-9]*,/*)
+                    device="$(echo "$i" | sed -e 's|,/.*||g' -e 's|=|_|g')"
+                    array="$(echo $i | cut -d, -f2-)"
+                    echo "ARRAY /dev/$device devices=$array" >> $mdconfig
+                    ;;
+                # raid UUID 
+                md=[0-9]*,[0-9,a-z]*)
+                    device="$(echo "$i" | sed -e 's|,.*||g' -e 's|=||g')"
+                    array="$(echo $i | cut -d, -f2-)"
+                    echo "ARRAY /dev/$device UUID=$array" >> $mdconfig
+                    ;;
+                # partitionable raid UUID
+                md=d[0-9]*,[0-9,a-z]*)
+                    device="$(echo "$i" | sed -e 's|,.*||g' -e 's|=|_|g')"
+                    array="$(echo $i | cut -d, -f2-)"
+                    echo "ARRAY /dev/$device UUID=$array" >> $mdconfig
+                    ;;
+            esac 
+        done
+    fi
+}