From c8e5702127e507e82e6f68a4b8c546803accea9d Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@openembedded.org>
Date: Thu, 30 Jun 2005 08:19:37 +0000
Subject: import clean BK tree at cset 1.3670

---
 .../initscripts/initscripts-1.0/openslug/umountfs  | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)

(limited to 'packages/initscripts/initscripts-1.0/openslug/umountfs')

diff --git a/packages/initscripts/initscripts-1.0/openslug/umountfs b/packages/initscripts/initscripts-1.0/openslug/umountfs
index e69de29bb2..d6f432dbda 100644
--- a/packages/initscripts/initscripts-1.0/openslug/umountfs
+++ b/packages/initscripts/initscripts-1.0/openslug/umountfs
@@ -0,0 +1,43 @@
+#! /bin/sh
+#
+# umountfs	Turn off swap and unmount all local filesystems.
+#
+
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+
+# Ensure /proc is mounted
+test -r /proc/mounts || mount -t proc proc /proc
+
+echo "Deactivating swap..."
+swapoff -a
+
+# We leave /proc mounted, the umount of /dev/devpts seems to fail
+# quite frequently, the busybox umount apparently gives up at the
+# first failure, so it is necessary to go file system by file
+# system.  It is necessary to go backward in the /proc list, because
+# later things may have been mounted on earlier mounts.
+devfs=
+unmount() {
+	local dev mp type opts
+	if read dev mp type opts
+	then
+		# recurse - unmount later items
+		unmount
+		# skip /proc and /dev but not the sub-directories
+		case "$mp" in
+		/|/proc)return 0;;
+		/dev)	devfs=1
+			return 0;;
+		esac
+		# then unmount this, if possible, otherwise make
+		# it read-only
+		umount -f -r "$mp"
+	fi
+}
+
+echo "Unmounting local filesystems..."
+unmount </proc/mounts
+
+# now /dev and read-only /  (halt/reboot may need /proc!)
+test -n "$devfs" && umount -f -r /dev
+mount -o remount,ro /
-- 
cgit v1.2.3