openwrt/package/base-files/default/etc/preinit

   1 #!/bin/sh
   2 export PATH=/bin:/sbin:/usr/bin:/usr/sbin
   3 mount none /proc -t proc
   4 insmod diag
   5 echo 0x01 > /proc/sys/diag
   6 sleep 1
   7 if [ $(cat /proc/sys/reset) = 1 -o "$(nvram get failsafe)" = 1 ]; then
   8         export FAILSAFE=true
   9         [ "$(nvram get boot_wait)" != "on" ] && {
  10                 nvram set boot_wait=on
  11                 nvram commit
  12         }
  13         while :; do { echo $(((X=(X+1)%8)%2)) > /proc/sys/diag; sleep $((X==0)); } done &
  14 fi
  15
  16 mount_root ${FAILSAFE:+failsafe}
  17
  18 exec /sbin/init