From 66bcd1d04900c97dda49883470fb5009609a3766 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 17 Mar 2011 19:09:39 +0000
Subject: base-files: add initial support for mounting overlayfs

SVN-Revision: 26207
---
 package/base-files/files/lib/functions/boot.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'package/base-files/files/lib/functions/boot.sh')

diff --git a/package/base-files/files/lib/functions/boot.sh b/package/base-files/files/lib/functions/boot.sh
index a4ec7be5b2..6bdd7a1490 100644
--- a/package/base-files/files/lib/functions/boot.sh
+++ b/package/base-files/files/lib/functions/boot.sh
@@ -125,7 +125,9 @@ pivot() { # <new_root> <old_root>
 fopivot() { # <rw_root> <ro_root> <dupe?>
 	root=$1
 	{
-		if grep -q mini_fo /proc/filesystems; then
+		if grep -q overlay /proc/filesystems; then
+			mount -t overlayfs -olowerdir=/,upperdir=$1 "overlayfs:$1" /mnt && root=/mnt
+		elif grep -q mini_fo /proc/filesystems; then
 			mount -t mini_fo -o base=/,sto=$1 "mini_fo:$1" /mnt 2>&- && root=/mnt
 		else
 			mount --bind / /mnt
-- 
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