package/base-files/files/lib/preinit/20_device_fs_mount

   1 #!/bin/sh
   2 # Copyright (C) 2006 OpenWrt.org
   3 # Copyright (C) 2010 Vertical Communications
   4
   5 do_move_devtmpfs() {
   6     foo="`grep devtmpfs /proc/mounts`"
   7     x=${foo#* }
   8     x=${x%% *}
   9
  10     if [ "$x" != "/dev" ] ; then
  11         mount -o move "$x" /dev
  12     fi
  13 }
  14
  15 do_mount_devfs() {
  16     mount devfs /dev -t devfs
  17 }
  18
  19 do_mount_hotplug() {
  20     mount -t tmpfs tmpfs /dev -o size=512K
  21 }
  22
  23 do_mount_udev() {
  24     mount -n -t tmpfs -o mode=0755 udev /dev
  25 }
  26
  27 choose_device_fs() {
  28     if grep -q devtmpfs /proc/mounts; then
  29         do_move_devtmpfs
  30     elif grep -q devfs /proc/filesystems; then
  31         do_mount_devfs
  32     elif [ -x /sbin/hotplug2 ]; then
  33         do_mount_hotplug
  34     elif [ -x /sbin/udevd ]; then
  35         do_mount_udev
  36     fi
  37 }
  38
  39 boot_hook_add preinit_essential choose_device_fs
  40