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#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
. /etc/functions.sh
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
M0=/dev/pty/m0
M1=/dev/pty/m1
HOTPLUG=/sbin/hotplug-call
else
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
# 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 != "$1" ] && {
grep rootfs_data /proc/mtd >/dev/null 2>/dev/null && {
. /bin/firstboot
mtd unlock rootfs_data
jffs2_ready && {
echo "switching to jffs2"
mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2 && \
fopivot /jffs /rom
} || {
echo "jffs2 not ready yet; using ramdisk"
ramoverlay
}
} || {
mtd unlock rootfs
mount -o remount,rw /dev/root /
}
}
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