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

   1 #!/bin/sh
   2 . /etc/nvram.sh
   3 export PATH=/bin:/sbin:/usr/bin:/usr/sbin
   4 mount none /proc -t proc
   5 insmod diag
   6 [ -f /proc/sys/diag ] && echo 0x01 > /proc/sys/diag
   7 sleep 1
   8 if [ -f /proc/sys/reset ] && [ $(cat /proc/sys/reset) = 1 -o "$(nvram get failsafe)" = 1 ]; then
   9         export FAILSAFE=true
  10         [ -x /usr/sbin/nvram -a "$(nvram get boot_wait)" != "on" ] && {
  11                 nvram set boot_wait=on
  12                 nvram commit
  13         }
  14         while :; do { echo $(((X=(X+1)%8)%2)) > /proc/sys/diag; sleep $((X==0)); } done &
  15 fi
  16
  17 mount_root ${FAILSAFE:+failsafe}
  18
  19 # automagically run firstboot
  20 [ -z "$FAILSAFE" -a -z "$(nvram get no_root_swap)" ] && {
  21         { mount|grep "on / type jffs2" 1>&-; } || firstboot
  22 }
  23
  24 exec /sbin/init