package/base-files/files/lib/preinit/10_essential_fs

   1 #!/bin/sh
   2 # Copyright (C) 2006 OpenWrt.org
   3 # Copyright (C) 2010 Vertical Communications
   4
   5 do_mount_procfs() {
   6    mount proc /proc -t proc
   7 }
   8
   9 do_mount_sysfs() {
  10     mount sysfs /sys -t sysfs
  11 }
  12
  13 calc_tmpfs_size() {
  14     pi_size=$(awk '/MemTotal:/ {l=5242880;mt=($2*1024);print((s=mt/2)<l)&&(mt>l)?mt-l:s}' /proc/meminfo)
  15 }
  16
  17 do_mount_tmpfs() {
  18     calc_tmpfs_size
  19     mount tmpfs /tmp -t tmpfs -o size=$pi_size,nosuid,nodev,mode=1777
  20 }
  21
  22 boot_hook_add preinit_essential do_mount_procfs
  23 boot_hook_add preinit_essential do_mount_sysfs
  24 boot_hook_add preinit_essential do_mount_tmpfs
  25