#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
+. /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
-mkdir -p /dev/pts
+
+if grep devfs /proc/filesystems > /dev/null; then
+ mount none /dev -t devfs
+ M0=/dev/pty/m0
+ M1=/dev/pty/m1
+ HOTPLUG=/sbin/hotplug-call
+else
+ mount -t sysfs none /sys
+ mount -t tmpfs tmpfs /dev -o size=512K
+ mknod /dev/console c 5 1
+ mkdir /dev/shm
+ /sbin/hotplug2 --no-persistent --coldplug --set-rules-file /etc/hotplug2-init.rules
+ M0=/dev/ptmx
+ M1=/dev/ptmx
+ HOTPLUG=
+fi
+
+mkdir -p /dev/pts /dev/shm
mount none /dev/pts -t devpts
-mount -t sysfs none /sys 2>&-
-mount -o remount,rw /dev/root /
+
+# the shell really doesn't like having stdin/out closed
+# that's why we use /dev/pty/m0 and m1 as replacement
+# for /dev/console if there's no serial console available
+dd if=/dev/console of=/dev/null bs=1 count=0 >/dev/null 2>/dev/null || \
+ exec <$M0 >$M1 2>&0
+
+echo "$HOTPLUG" > /proc/sys/kernel/hotplug
+
+jffs2_ready () {
+ mtdpart="$(find_mtd_part rootfs_data)"
+ magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
+ [ "$magic" != "deadc0de" ]
+}
+
+[ failsafe != "$1" ] && {
+ grep rootfs /proc/mtd >/dev/null 2>/dev/null && {
+ mtd unlock rootfs
+ grep rootfs_data /proc/mtd >/dev/null 2>/dev/null && {
+ . /bin/firstboot
+ jffs2_ready && {
+ echo "switching to jffs2"
+ mount "$(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 /
+}