openwrt/target/default/target_skeleton/etc/preinit

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