From 9b64a9f76af317898b63c939e7afb92ccc7f297d Mon Sep 17 00:00:00 2001
From: Felix Endres
Date: Sat, 21 Apr 2007 14:06:22 +0000
Subject: AUFS and UnionFS adjustments

git-svn-id: http://svn.openslx.org/svn/openslx/trunk@913 95ad53e4-c205-0410-b2fa-d234c58c8868
---
 initramfs/initrd-stuff/init | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

(limited to 'initramfs/initrd-stuff/init')

diff --git a/initramfs/initrd-stuff/init b/initramfs/initrd-stuff/init
index ffcb351f..a3e24a83 100755
--- a/initramfs/initrd-stuff/init
+++ b/initramfs/initrd-stuff/init
@@ -144,13 +144,21 @@ in $0\ncountry=\"${COUNTRY}\"" >> /etc/machine-setup
     noldsc)
       noldsc=yes;;
     # additional source to unify root filesystem with
-    union=*)
+    unionfs=*)
       unionfs=1
-      uniondirs=${opts#union=}
+      uniondirs=${opts#unionfs=}
     ;;
     # if unionfs should be used over the complete root filesystem
     unionfs)
       unionfs=1;;
+    # Same for AUFS
+    aufs=*)
+      aufs=1
+      uniondirs=${opts#aufs=}
+    ;;
+    # if unionfs should be used over the complete root filesystem
+    aufs)
+      aufs=1;;
     # if cowloop should be used, only ontop of network block device and in
     # combination with classical fs, like ext2 useful
     cowloop=*)
@@ -452,17 +460,27 @@ $(sysup)"
   hwautocfg main &
 fi
 
+union_type=""
 # try to use unionfs for rw access if available
-if [ -n "${unionfs}" -o -n "${union}" ] ; then
-  union_type=""
+if [ -n "${unionfs}" ]; then 
   modprobe ${MODPRV} unionfs  && union_type="unionfs"
-  modprobe ${MODPRV} aufs   && union_type="aufs"
   if [ -z "$union_type" ]; then 
 	error "$init_loadufs" nonfatal
 	unionfs="";
+	# if unionfs is not available, check for aufs and inform user
+        modprobe ${MODPRV} -n aufs && error $init_noufs_butaufs
+  fi
+fi
+# try to use aufs for rw access if available
+if [ -n "${aufs}" ]; then 
+  modprobe ${MODPRV} aufs   && union_type="aufs"
+  if [ -z "$union_type" ]; then 
+	error "$init_loadaufs" nonfatal
+	aufs="";
+	# if aufs is not available, check for unionfs and inform user
+        modprobe ${MODPRV} -n unionfs && error $init_noaufs_butufs
   fi
 fi
-
 # setup of client root filesystem dependent on the availability of UnionFS
 if [ -n "${unionfs}" ] ; then
   echo "Using UnionFS for rw access"
-- 
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