#!/bin/bash check() { require_kernel_modules overlay || return 1 return 255 } depends() { echo base } installkernel() { hostonly="" instmods overlay } install() { inst_hook pre-mount 01 "$moddir/prepare-overlayfs.sh" inst_hook mount 01 "$moddir/mount-overlayfs.sh" # overlay on top of block device inst_hook pre-pivot 10 "$moddir/mount-overlayfs.sh" # overlay on top of network device (e.g. nfs) }