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authorMike Baker <mbm@openwrt.org>2007-05-10 14:37:47 +0000
committerMike Baker <mbm@openwrt.org>2007-05-10 14:37:47 +0000
commit09cdbc40d05014808b9fd32db0f87075e1f7d628 (patch)
tree0d8ea6a346ce1aed9ac866ebb526f81832423ec0 /package/base-files/files/sbin
parentcb3daaf7727d9164860859ffc5774f6f4aaa8c7c (diff)
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unified preinit environment
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7173 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/base-files/files/sbin')
-rwxr-xr-xpackage/base-files/files/sbin/mount_root22
1 files changed, 18 insertions, 4 deletions
diff --git a/package/base-files/files/sbin/mount_root b/package/base-files/files/sbin/mount_root
index 607c799682..a783f3d8ff 100755
--- a/package/base-files/files/sbin/mount_root
+++ b/package/base-files/files/sbin/mount_root
@@ -3,9 +3,10 @@
. /etc/functions.sh
mount none /proc -t proc
-size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
+size=$(awk '/MemTotal:/ {l=5242880;mt=($2*1024);print((s=mt/2)<l)?mt-l:s}' /proc/meminfo)
mount none /tmp -t tmpfs -o size=$size,nosuid,nodev,mode=1777
+
if grep devfs /proc/filesystems >/dev/null; then
mount none /dev -t devfs
else
@@ -13,7 +14,9 @@ else
mknod /dev/console c 5 1
exec >/dev/console </dev/console 2>&1
fi
+
mkdir /dev/shm
+
if grep sysfs /proc/filesystems >/dev/null; then
mount -t sysfs none /sys
HOTPLUG=""
@@ -27,14 +30,25 @@ echo "$HOTPLUG" > /proc/sys/kernel/hotplug
mkdir -p /dev/pts
mount none /dev/pts -t devpts
+jffs2_ready () {
+ mtdpart="$(find_mtd_part rootfs_data)"
+ magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
+ [ "$magic" != "deadc0de" ]
+}
+
[ failsafe != "$1" ] && {
grep rootfs /proc/mtd >/dev/null 2>/dev/null && {
mtd unlock rootfs
grep rootfs_data /proc/mtd >/dev/null 2>/dev/null && {
. /bin/firstboot
- echo "switching to jffs2"
- mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2
- fopivot /jffs /rom
+ jffs2_ready && {
+ echo "switching to jffs2"
+ mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2
+ fopivot /jffs /rom
+ } || {
+ echo "jffs2 not ready yet; using ramdisk"
+ ramoverlay
+ }
}
} || mount -o remount,rw /dev/root /
}