Wrapper script around chroot

enter_chroot.sh

#!/bin/sh

set -e

if [ x"$1" = x"" -o ! -d "/var/chroot/$1" ]; then
	echo "Usage: $0 <chroot>" >&2
	exit 1
fi

cd /var/chroot/$1

mount -t devtmpfs devtmpfs dev
mount -t proc proc proc
mount -t sysfs sysfs sys

rm -f root/.Xauthority 
touch root/.Xauthority
xauth -f root/.Xauthority add $(xauth list | head -n 1)

chroot . /usr/bin/env -i TERM="$TERM" HOME="/root" DISPLAY="$DISPLAY" XAUTHORITY="/root/.Xauthority" debian_chroot="chroot-$1" /bin/bash -l

umount -l dev
umount -l proc
umount -l sys