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openwrt-xburst/package/base-files/files/lib/firstboot/10_no_fo_clear_overlay

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#!/bin/sh
# Copyright (C) 2006-2010 OpenWrt.org
# Copyright (C) 2010 Vertical Communications
no_fo_clear_overlay() {
# switch back to squashfs temporarily
pivot /rom /mnt
# get rid of the old overlay
umount -l /mnt
# another umount to get rid of the bind from /tmp/root
umount -l /mnt
}
boot_hook_add no_fo no_fo_clear_overlay