nfs/parse-nfsroot.sh: don't unset netroot, if not nfs

(cherry picked from commit afcc697cb8c588eef68bb635f790991411209089)

diff --git a/modules.d/95nfs/parse-nfsroot.sh b/modules.d/95nfs/parse-nfsroot.sh
index 9fc2a8c324709436a7fd7dab5f7e2c37b95c406d..a84cd43664b2cd8411edddc3915028956923717f 100755 (executable)
--- a/modules.d/95nfs/parse-nfsroot.sh
+++ b/modules.d/95nfs/parse-nfsroot.sh
@@ -59,7 +59,14 @@ fi
 
 case "$netroot" in
     /dev/nfs) netroot=nfs;;
-    /dev/*) unset netroot; return;;
+    /dev/*)
+        if [ -n "$oldnetroot" ]; then
+            netroot="$oldnetroot"
+        else
+            unset netroot
+        fi
+       return
+       ;;
     # LEGACY: root=<server-ip>:/<path
     [0-9]*:/*|[0-9]*\.[0-9]*\.[0-9]*[!:]|/*)
         netroot=nfs:$netroot;;