58 lines
1.5 KiB
Bash
Executable file
58 lines
1.5 KiB
Bash
Executable file
#!/bin/sh
|
|
# Copyright (C) 2006 OpenWrt.org
|
|
. /etc/functions.sh
|
|
|
|
mount none /proc -t proc
|
|
|
|
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 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
|
|
|
|
# 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 /
|
|
}
|