#!/bin/sh

prog=${1:-/bin/sh}

[ $# -gt 0 ] && shift

mkdir -p /live/sys /live/proc /live/dev

mountpoint -q /live/sys  || mount --bind /sys  /live/sys
mountpoint -q /live/proc || mount --bind /proc /live/proc
mountpoint -q /live/dev  || mount --bind /dev  /live/dev

chroot /live $prog "$@"

umount /live/dev
umount /live/sys
umount /live/proc

