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authorFelix Fietkau <nbd@openwrt.org>2006-06-15 17:21:17 +0000
committerFelix Fietkau <nbd@openwrt.org>2006-06-15 17:21:17 +0000
commit705882aaab1526e9c46530c02699c923ec7b80ca (patch)
treeecb67bcf7ba9edd4ea60e1459a2085e07291d289 /package/base-files/brcm-2.4
parentf21f0f60303bef6965acd378d9b8d561d4cfe93b (diff)
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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
Diffstat (limited to 'package/base-files/brcm-2.4')
-rwxr-xr-xpackage/base-files/brcm-2.4/bin/firstboot90
-rwxr-xr-xpackage/base-files/brcm-2.4/etc/preinit11
-rwxr-xr-xpackage/base-files/brcm-2.4/sbin/mount_root38
3 files changed, 139 insertions, 0 deletions
diff --git a/package/base-files/brcm-2.4/bin/firstboot b/package/base-files/brcm-2.4/bin/firstboot
new file mode 100755
index 0000000000..28189780bd
--- /dev/null
+++ b/package/base-files/brcm-2.4/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 $rom
+ exit 0
+ }
+
+ mtd erase OpenWrt
+ mountdp /dev/mtdblock/4 /jffs -t jffs2
+}
diff --git a/package/base-files/brcm-2.4/etc/preinit b/package/base-files/brcm-2.4/etc/preinit
new file mode 100755
index 0000000000..5b676ca3ac
--- /dev/null
+++ b/package/base-files/brcm-2.4/etc/preinit
@@ -0,0 +1,11 @@
+#!/bin/sh
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin
+mount none /proc -t proc
+
+[ -f /etc/preinit.arch ] && . /etc/preinit.arch
+[ -z "$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>&-