blob: 876a03fc504d59c0e39a21336cb3d49fca08487b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
#!/bin/bash
# Utility script to chroot into a root filesystem of a foreign
# architecture
set -e
fail() {
echo "$1" >&2
exit 1
}
rootfs="$1"
[ -n "$rootfs" ] || fail "Usage: $(basename $0) <directory>"
[ -e "$rootfs" ] || fail "$rootfs does not exist"
[ "$EUID" -eq 0 ] || fail "$(basename $0) must be run as root"
# Unmount and remove any temporary files
#
cleanup() {
set +e
fuser --kill -SIGTERM "$rootfs"
sleep 2
fuser --kill -SIGKILL --verbose "$rootfs"
umount -l "$rootfs/proc" 2> /dev/null
umount -l "$rootfs/sys" 2> /dev/null
umount -l "$rootfs/dev/pts" 2> /dev/null
umount -l "$rootfs/dev" 2> /dev/null
trap - 0 1 2 3 6
}
trap cleanup 0 1 2 3 6
mount -t proc chproc "$rootfs/proc"
mount -t sysfs chsys "$rootfs/sys"
mount -t devtmpfs chdev "$rootfs/dev"
mount -t devpts chpts "$rootfs/dev/pts"
echo "chrootfs: chrooting into $rootfs" 1>&2
LANG=C LC_ALL=C chroot "$rootfs"
echo "chrootfs: cleaning up" 1>&2
cleanup
echo "chrootfs: done" 1>&2
|
