clean up handling of the root filesystem mount - remove broadcom specific junk from the generic base-files part

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@3951 3c298f89-4303-0410-b956-a3cf2f4a3e73

14 files changed, 309 insertions, 46 deletions

diff --git a/package/base-files/ar7-2.4/bin/firstboot b/package/base-files/ar7-2.4/bin/firstboot
new file mode 100755
index 0000000000..955423be09
--- /dev/null
+++ b/package/base-files/ar7-2.4/bin/firstboot
@@ -0,0 +1,89 @@
+#!/bin/sh
+# $Id$
+
+rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
+jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
+
+dupe() { # <new_root> <old_root>
+	cd $1
+	echo -n "creating directories... "
+	{
+		cd $2 
+		find . -xdev -type d
+		echo "./dev ./jffs ./mnt ./proc ./tmp ./sys"
+		# xdev skips mounted directories
+		cd $1 
+	} | xargs mkdir -p
+	echo "done"
+
+	echo -n "setting up symlinks... "
+	for file in $(cd $2; find . -xdev -type f;); do
+		case "$file" in
+		./rom/note) ;; #nothing
+		./etc/config*|\
+		./etc/resolv.conf|\
+		./usr/lib/ipkg/info) cp -af $2/$file $file;;
+		*) ln -sf /rom/${file#./*} $file;;
+		esac
+	done
+	for file in $(cd $2; find . -xdev -type l;); do
+		cp -af $2/${file#./*} $file
+	done
+	echo "done"
+}
+
+pivot() { # <new_root> <old_root>
+	mount -o move /proc $1/proc && \
+	pivot_root $1 $1$2 && {
+		mount -o move $2/dev /dev
+		mount -o move $2/tmp /tmp
+		mount -o move $2/sys /sys
+		return 0
+	}
+}
+
+mountdp() { # <device> <mount_point> <ignored> <fs>
+        dev=$1; mnt=$2; shift 2; opt=$*
+	mount $dev $mnt $opt
+	dupe $mnt $rom
+	pivot $mnt /rom
+}
+
+ramoverlay() {
+	mkdir -p /tmp/root
+	mountdp /tmp/root /mnt -o bind
+}
+
+[ "${0##*/}" = "firstboot" ] && {
+	[ -z "$rom" ] && {
+		echo "You do not have a squashfs partition; aborting"
+		echo "(firstboot cannot be run on jffs2 based firmwares)"
+		exit 1
+	}
+
+	[ "$1" = "switch2jffs" ] && {
+		mtd erase OpenWrt
+		mount -o remount,ro none / # try to avoid fs changing while copying
+		mount -o bind / /mnt
+		mount /dev/mtdblock/4 /rom/jffs -t jffs2
+		echo -n "copying files ... "
+		cp -a /mnt/* /rom/jffs
+		umount /mnt
+		echo "done"
+		pivot /rom /mnt
+		mount -o move /mnt /tmp/root
+		pivot /jffs /rom
+		exit 0
+	}
+
+	# script run manually
+	[ \! -z "$jffs" ] && {
+		echo "firstboot has already been run"
+		echo "jffs2 partition is mounted, only resetting files"
+		dupe $jffs $rom
+		exit 0
+	}
+
+	mtd erase OpenWrt
+	mountdp /dev/mtdblock/4 /jffs -t jffs2
+}
diff --git a/package/base-files/default/etc/preinit b/package/base-files/ar7-2.4/etc/preinit
index 5b676ca3ac..5b676ca3ac 100755
--- a/package/base-files/default/etc/preinit
+++ b/package/base-files/ar7-2.4/etc/preinit
diff --git a/package/base-files/ar7-2.4/sbin/mount_root b/package/base-files/ar7-2.4/sbin/mount_root
new file mode 100755
index 0000000000..6b90bdc9cc
--- /dev/null
+++ b/package/base-files/ar7-2.4/sbin/mount_root
@@ -0,0 +1,28 @@
+#!/bin/sh
+size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
+mount none /tmp -t tmpfs -o size=$size
+
+if [ "$1" != "failsafe" ]; then 
+	mtd unlock linux
+	mount | grep jffs2 >&-
+	if [ $? = 0 ] ; then
+		if [ $(cat /proc/mtd | wc -l) = 6 ]; then
+			mtd erase OpenWrt
+		else
+			mount -o remount,rw /dev/root /
+		fi
+	else
+		. /bin/firstboot
+		echo "switching to jffs2"
+		mount /dev/mtdblock/4 /jffs -t jffs2
+		pivot /jffs /rom || {
+			echo "jffs2 unusable; using ramdisk"
+			ramoverlay
+		}
+	fi
+fi
+
+mount none /tmp -t tmpfs -o remount,nosuid,nodev,mode=1777
+mkdir -p /dev/pts
+mount none /dev/pts -t devpts
+mount -t sysfs none /sys 2>&-
diff --git a/package/base-files/default/bin/firstboot b/package/base-files/brcm-2.4/bin/firstboot
index 28189780bd..28189780bd 100755
--- a/package/base-files/default/bin/firstboot
+++ b/package/base-files/brcm-2.4/bin/firstboot
diff --git a/package/base-files/brcm-2.4/etc/preinit b/package/base-files/brcm-2.4/etc/preinit
new file mode 100755
index 0000000000..5b676ca3ac
--- /dev/null
+++ b/package/base-files/brcm-2.4/etc/preinit
@@ -0,0 +1,11 @@
+#!/bin/sh
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin
+mount none /proc -t proc
+
+[ -f /etc/preinit.arch ] && . /etc/preinit.arch
+[ -z "$FAILSAFE" ] || {
+	echo /bin/true > /proc/sys/kernel/hotplug
+	telnetd -l /bin/login <> /dev/null 2>&1
+}
+mount_root ${FAILSAFE:+failsafe}
+exec /sbin/init
diff --git a/package/base-files/brcm-2.4/sbin/mount_root b/package/base-files/brcm-2.4/sbin/mount_root
new file mode 100755
index 0000000000..88a836c808
--- /dev/null
+++ b/package/base-files/brcm-2.4/sbin/mount_root
@@ -0,0 +1,38 @@
+#!/bin/sh
+is_dirty() {
+	grep Broadcom /proc/cpuinfo >&- || return 1
+	OFFSET="$(($(hexdump -v /dev/mtdblock/1 -s 20 -n 2 -e '"%d"')-1))"
+	return $(hexdump -v /dev/mtdblock/1 -s $OFFSET -n 1 -e '"%d"')
+}
+
+size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
+mount none /tmp -t tmpfs -o size=$size
+
+if [ "$1" != "failsafe" ]; then 
+	mtd unlock linux
+	mount | grep jffs2 >&-
+	if [ $? = 0 ] ; then
+		if [ $(cat /proc/mtd | wc -l) = 6 ]; then
+			mtd erase OpenWrt
+			jffs2root --move
+		else
+			mount -o remount,rw /dev/root /
+		fi
+	else
+		. /bin/firstboot
+		is_dirty 
+		[ $? != 0 ] && {
+			echo "switching to jffs2"
+			mount /dev/mtdblock/4 /jffs -t jffs2
+			pivot /jffs /rom
+		} || {
+			echo "jffs2 unusable; using ramdisk"
+			ramoverlay
+		}
+	fi
+fi
+
+mount none /tmp -t tmpfs -o remount,nosuid,nodev,mode=1777
+mkdir -p /dev/pts
+mount none /dev/pts -t devpts
+mount -t sysfs none /sys 2>&-
diff --git a/package/base-files/brcm-2.6/bin/firstboot b/package/base-files/brcm-2.6/bin/firstboot
new file mode 100755
index 0000000000..28189780bd
--- /dev/null
+++ b/package/base-files/brcm-2.6/bin/firstboot
@@ -0,0 +1,90 @@
+#!/bin/sh
+# $Id$
+
+rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
+jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
+
+dupe() { # <new_root> <old_root>
+	cd $1
+	echo -n "creating directories... "
+	{
+		cd $2 
+		find . -xdev -type d
+		echo "./dev ./jffs ./mnt ./proc ./tmp ./sys"
+		# xdev skips mounted directories
+		cd $1 
+	} | xargs mkdir -p
+	echo "done"
+
+	echo -n "setting up symlinks... "
+	for file in $(cd $2; find . -xdev -type f;); do
+		case "$file" in
+		./rom/note) ;; #nothing
+		./etc/config*|\
+		./etc/resolv.conf|\
+		./usr/lib/ipkg/info) cp -af $2/$file $file;;
+		*) ln -sf /rom/${file#./*} $file;;
+		esac
+	done
+	for file in $(cd $2; find . -xdev -type l;); do
+		cp -af $2/${file#./*} $file
+	done
+	echo "done"
+}
+
+pivot() { # <new_root> <old_root>
+	mount -o move /proc $1/proc && \
+	pivot_root $1 $1$2 && {
+		mount -o move $2/dev /dev
+		mount -o move $2/tmp /tmp
+		mount -o move $2/sys /sys
+		return 0
+	}
+}
+
+mountdp() { # <device> <mount_point> <ignored> <fs>
+        dev=$1; mnt=$2; shift 2; opt=$*
+	mount $dev $mnt $opt
+	dupe $mnt $rom
+	pivot $mnt /rom
+}
+
+ramoverlay() {
+	mkdir -p /tmp/root
+	mountdp /tmp/root /mnt -o bind
+}
+
+[ "${0##*/}" = "firstboot" ] && {
+	[ -z "$rom" ] && {
+		echo "You do not have a squashfs partition; aborting"
+		echo "(firstboot cannot be run on jffs2 based firmwares)"
+		exit 1
+	}
+
+	[ "$1" = "switch2jffs" ] && {
+		mtd erase OpenWrt
+		mount -o remount,ro none / # try to avoid fs changing while copying
+		mount -o bind / /mnt
+		mount /dev/mtdblock/4 /rom/jffs -t jffs2
+		echo -n "copying files ... "
+		cp -a /mnt/* /rom/jffs
+		umount /mnt
+		echo "done"
+		pivot /rom /mnt
+		mount -o move /mnt /tmp/root
+		pivot /jffs /rom
+		jffs2root --clean
+		exit 0
+	}
+
+	# script run manually
+	[ \! -z "$jffs" ] && {
+		echo "firstboot has already been run"
+		echo "jffs2 partition is mounted, only resetting files"
+		dupe $jffs $rom
+		exit 0
+	}
+
+	mtd erase OpenWrt
+	mountdp /dev/mtdblock/4 /jffs -t jffs2
+}
diff --git a/package/base-files/brcm-2.6/etc/preinit b/package/base-files/brcm-2.6/etc/preinit
new file mode 100755
index 0000000000..5b676ca3ac
--- /dev/null
+++ b/package/base-files/brcm-2.6/etc/preinit
@@ -0,0 +1,11 @@
+#!/bin/sh
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin
+mount none /proc -t proc
+
+[ -f /etc/preinit.arch ] && . /etc/preinit.arch
+[ -z "$FAILSAFE" ] || {
+	echo /bin/true > /proc/sys/kernel/hotplug
+	telnetd -l /bin/login <> /dev/null 2>&1
+}
+mount_root ${FAILSAFE:+failsafe}
+exec /sbin/init
diff --git a/package/base-files/brcm-2.6/sbin/mount_root b/package/base-files/brcm-2.6/sbin/mount_root
new file mode 100755
index 0000000000..88a836c808
--- /dev/null
+++ b/package/base-files/brcm-2.6/sbin/mount_root
@@ -0,0 +1,38 @@
+#!/bin/sh
+is_dirty() {
+	grep Broadcom /proc/cpuinfo >&- || return 1
+	OFFSET="$(($(hexdump -v /dev/mtdblock/1 -s 20 -n 2 -e '"%d"')-1))"
+	return $(hexdump -v /dev/mtdblock/1 -s $OFFSET -n 1 -e '"%d"')
+}
+
+size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
+mount none /tmp -t tmpfs -o size=$size
+
+if [ "$1" != "failsafe" ]; then 
+	mtd unlock linux
+	mount | grep jffs2 >&-
+	if [ $? = 0 ] ; then
+		if [ $(cat /proc/mtd | wc -l) = 6 ]; then
+			mtd erase OpenWrt
+			jffs2root --move
+		else
+			mount -o remount,rw /dev/root /
+		fi
+	else
+		. /bin/firstboot
+		is_dirty 
+		[ $? != 0 ] && {
+			echo "switching to jffs2"
+			mount /dev/mtdblock/4 /jffs -t jffs2
+			pivot /jffs /rom
+		} || {
+			echo "jffs2 unusable; using ramdisk"
+			ramoverlay
+		}
+	fi
+fi
+
+mount none /tmp -t tmpfs -o remount,nosuid,nodev,mode=1777
+mkdir -p /dev/pts
+mount none /dev/pts -t devpts
+mount -t sysfs none /sys 2>&-
diff --git a/package/base-files/default/etc/init.d/S10boot b/package/base-files/default/etc/init.d/S10boot
index 42bb438861..e0d15db0e0 100755
--- a/package/base-files/default/etc/init.d/S10boot
+++ b/package/base-files/default/etc/init.d/S10boot
@@ -1,6 +1,7 @@
 #!/bin/sh
 . /etc/functions.sh
 
+[ -f /proc/mounts ] || /sbin/mount_root
 [ -f /proc/jffs2_bbc ] && echo "S" > /proc/jffs2_bbc
 vconfig set_name_type VLAN_PLUS_VID_NO_PAD
 
diff --git a/package/base-files/default/sbin/mount_root b/package/base-files/default/sbin/mount_root
index 88a836c808..6c8805c080 100755
--- a/package/base-files/default/sbin/mount_root
+++ b/package/base-files/default/sbin/mount_root
@@ -1,38 +1,8 @@
 #!/bin/sh
-is_dirty() {
-	grep Broadcom /proc/cpuinfo >&- || return 1
-	OFFSET="$(($(hexdump -v /dev/mtdblock/1 -s 20 -n 2 -e '"%d"')-1))"
-	return $(hexdump -v /dev/mtdblock/1 -s $OFFSET -n 1 -e '"%d"')
-}
-
 size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
-mount none /tmp -t tmpfs -o size=$size
-
-if [ "$1" != "failsafe" ]; then 
-	mtd unlock linux
-	mount | grep jffs2 >&-
-	if [ $? = 0 ] ; then
-		if [ $(cat /proc/mtd | wc -l) = 6 ]; then
-			mtd erase OpenWrt
-			jffs2root --move
-		else
-			mount -o remount,rw /dev/root /
-		fi
-	else
-		. /bin/firstboot
-		is_dirty 
-		[ $? != 0 ] && {
-			echo "switching to jffs2"
-			mount /dev/mtdblock/4 /jffs -t jffs2
-			pivot /jffs /rom
-		} || {
-			echo "jffs2 unusable; using ramdisk"
-			ramoverlay
-		}
-	fi
-fi
-
-mount none /tmp -t tmpfs -o remount,nosuid,nodev,mode=1777
+mount none /proc -t proc
+mount none /tmp -t tmpfs -o size=$size,nosuid,nodev,mode=1777
 mkdir -p /dev/pts
 mount none /dev/pts -t devpts
 mount -t sysfs none /sys 2>&-
+mount -o remount,rw /dev/root /
diff --git a/package/base-files/sibyte-2.6/init b/package/base-files/sibyte-2.6/init
deleted file mode 100755
index 1f98589eb6..0000000000
--- a/package/base-files/sibyte-2.6/init
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/ash
-mount none /dev -t devfs
-mount none /proc -t proc
-mount_root failsafe
-mount -o remount,rw /dev/root /
-exec /bin/busybox init
diff --git a/package/base-files/xscale-2.6/etc/init.d/S00xscale b/package/base-files/xscale-2.6/etc/init.d/S00xscale
deleted file mode 100755
index 9836de423b..0000000000
--- a/package/base-files/xscale-2.6/etc/init.d/S00xscale
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/bin/sh
-mount none /proc -t proc
-mount_root failsafe
-mount -o remount,rw /dev/root /
diff --git a/package/base-files/xscale-2.6/init b/package/base-files/xscale-2.6/init
deleted file mode 100755
index 8ca48a04c1..0000000000
--- a/package/base-files/xscale-2.6/init
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/ash
-mount none /dev -t devfs
-exec /bin/busybox init