diff -ur initcpio.orig/scripts/casper initcpio/scripts/casper
--- initcpio.orig/scripts/casper	2014-02-12 01:16:44.150619349 +0200
+++ initcpio/scripts/casper	2014-02-11 11:21:13.274618648 +0200
@@ -624,12 +624,6 @@
             if check_dev "null" "${devname}" ; then
                 return 0
             fi
-        elif is_nice_device "${sysblock}" ; then
-            for dev in $(subdevices "${sysblock}"); do
-                if check_dev "${dev}" ; then
-                    return 0
-                fi
-            done
         elif is_md "${devname}" || is_mapper "${devname}" ; then
             if check_dev "null" "${devname}" ; then
                 return 0
@@ -646,6 +640,11 @@
             echo "${devname}.${fstype}"
             return 0
         fi
+        for dev in $(subdevices "${sysblock}"); do
+            if check_dev "${dev}" ; then
+                return 0
+            fi
+        done
     done
     return 1
 }
diff -ur initcpio.orig/scripts/casper-helpers initcpio/scripts/casper-helpers
--- initcpio.orig/scripts/casper-helpers	2014-02-12 01:16:44.147286029 +0200
+++ initcpio/scripts/casper-helpers	2014-02-12 01:13:37.294652454 +0200
@@ -51,12 +51,14 @@
 
 where_is_mounted() {
     device=$1
-    if grep -q "^$device " /proc/mounts; then
-        mountpoint="$(grep "^$device " /proc/mounts | awk '{print $2; exit}')"
-        grep "^$device " /proc/mounts | read d mountpoint rest
-        echo $mountpoint
-        return 0
-    fi
+    device="$(readlink -f "$device")"
+    while read dev mountpoint rest; do
+        dev="$(readlink -f "$dev")"
+        if [ -n "$dev" -a "$device" = "$dev" ]; then
+            echo $mountpoint
+            return 0
+        fi
+    done < /proc/mounts
     return 1
 }