#!/bin/sh # Copyright (C) 2006 OpenWrt.org export PATH=/bin:/sbin:/usr/bin:/usr/sbin . /etc/diag.sh failsafe_ip() { ifconfig $ifname 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 up } failsafe() { [ -n "$ifname" ] && grep "$ifname" /proc/net/dev >/dev/null && { failsafe_ip netmsg 192.168.1.255 "Entering Failsafe!" telnetd -l /bin/login.sh <> /dev/null 2>&1 } lock /tmp/.failsafe ash --login } mount proc /proc -t proc mount sysfs /sys -t sysfs size=$(awk '/MemTotal:/ {l=5242880;mt=($2*1024);print((s=mt/2)l)?mt-l:s}' /proc/meminfo) mount tmpfs /tmp -t tmpfs -o size=$size,nosuid,nodev,mode=1777 if grep devfs /proc/filesystems > /dev/null; then mount devfs /dev -t devfs M0=/dev/pty/m0 M1=/dev/pty/m1 HOTPLUG=/sbin/hotplug-call elif [ -x /sbin/hotplug2 ]; then mount -t tmpfs tmpfs /dev -o size=512K mknod /dev/console c 5 1 /sbin/hotplug2 --set-worker /lib/hotplug2/worker_fork.so --set-rules-file /etc/hotplug2-init.rules --no-persistent --set-coldplug-cmd /sbin/udevtrigger /sbin/hotplug2 --set-worker /lib/hotplug2/worker_fork.so --set-rules-file /etc/hotplug2-init.rules --persistent & M0=/dev/ptmx M1=/dev/ptmx HOTPLUG= elif [ -x /sbin/udevd ]; then mount -n -t tmpfs -o mode=0755 udev /dev [ -d /lib/udev/devices ] && cp -af /lib/udev/devices/* /dev/ [ -c /dev/console ] || mknod -m 0600 /dev/console c 5 1 [ -c /dev/null ] || mknod -m 0666 /dev/null c 1 3 /sbin/udevd --daemon --resolve-names=never /sbin/udevadm trigger /sbin/udevadm settle M0=/dev/pty/ptmx M1=/dev/pty/ptmx HOTPLUG= fi [ -d /dev/pts ] || mkdir -p /dev/pts [ -d /dev/shm ] || mkdir -p /dev/shm mount devpts /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 && { M0=/dev/console M1=/dev/console } exec <$M0 >$M1 2>&0 echo "- preinit -" echo "Press CTRL-C for failsafe" trap 'FAILSAFE=true' INT trap 'FAILSAFE=true' USR1 [ -e /etc/preinit.arch ] && . /etc/preinit.arch set_state preinit echo "$HOTPLUG" > /proc/sys/kernel/hotplug export FAILSAFE eval ${FAILSAFE:+failsafe} lock -w /tmp/.failsafe if [ -z "$INITRAMFS" ]; then mount_root [ -f /sysupgrade.tgz ] && { echo "- config restore -" cd / mv sysupgrade.tgz /tmp tar xzf /tmp/sysupgrade.tgz rm -f /tmp/sysupgrade.tgz sync } echo "- init -" exec /sbin/init fi