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openwrt-xburst/package/base-files/files/lib/preinit/10_essential_fs
nbd a9929695c6 add preinit modularization work by Daniel Dickinson (cshore)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19331 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-01-25 17:11:17 +00:00

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#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
# Copyright (C) 2010 Vertical Communications
do_mount_procfs() {
mount proc /proc -t proc
}
do_mount_sysfs() {
mount sysfs /sys -t sysfs
}
calc_tmpfs_size() {
pi_size=$(awk '/MemTotal:/ {l=5242880;mt=($2*1024);print((s=mt/2)<l)&&(mt>l)?mt-l:s}' /proc/meminfo)
}
do_mount_tmpfs() {
calc_tmpfs_size
mount tmpfs /tmp -t tmpfs -o size=$pi_size,nosuid,nodev,mode=1777
}
boot_hook_add preinit_essential do_mount_procfs
boot_hook_add preinit_essential do_mount_sysfs
boot_hook_add preinit_essential do_mount_tmpfs