openwrt/target/linux/x86/base-files/lib/preinit/79_move_config

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#!/bin/sh
# Copyright (C) 2012-2015 OpenWrt.org
move_config() {
local partdev
. /lib/upgrade/common.sh
if export_bootdevice && export_partdevice partdev 1; then
mkdir -p /boot
mount -t ext4 -o rw,noatime "/dev/$partdev" /boot
if [ -f "/boot/$BACKUP_FILE" ]; then
mv -f "/boot/$BACKUP_FILE" /
fi
mount --bind /boot/boot /boot
fi
}
boot_hook_add preinit_mount_root move_config