future-install-scripts/arch-chroot.in
Dave Reisner 49e855638e use intermediate var for chrootdir
the trap won't necessarily have the same positional parameters.
2012-06-20 10:25:18 -04:00

32 lines
590 B
Bash

#!/bin/bash
shopt -s extglob
m4_include(common)
usage() {
cat <<EOF
usage: ${0##*/} <chroot-dir>
EOF
}
if [[ -z $1 || $1 = @(-h|--help) ]]; then
usage
exit $(( $# ? 0 : 1 ))
fi
(( EUID == 0 )) || die 'This script must be run with root privileges'
chrootdir=$1
[[ -d $chrootdir ]] || die "Can't create chroot on non-directory %s" "$1"
trap 'api_fs_umount "$chrootdir" 2>/dev/null' EXIT
api_fs_mount "$chrootdir" || die "failed to setup API filesystems in chroot %s" "$1"
mount -B /etc/resolv.conf "$chrootdir/etc/resolv.conf"
chroot "$@"
umount "$chrootdir/etc/resolv.conf"