add preinit modularization work by Daniel Dickinson (cshore)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19331 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 17 insertions, 0 deletions

diff --git a/package/base-files/files/lib/firstboot/10_no_fo_clear_overlay b/package/base-files/files/lib/firstboot/10_no_fo_clear_overlay
new file mode 100644
index 0000000000..8a7d9b066f
--- /dev/null
+++ b/package/base-files/files/lib/firstboot/10_no_fo_clear_overlay
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+# Copyright (C) 2006-2010 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+no_fo_clear_overlay() {
+    # switch back to squashfs temporarily
+    pivot /rom /mnt
+
+    # get rid of the old overlay
+    umount -l /mnt
+
+    # another umount to get rid of the bind from /tmp/root
+    umount -l /mnt
+}
+
+boot_hook_add no_fo no_fo_clear_overlay