chroot in lx brand zone

chroot_example.sh

#!/bin/bash

# MIT License.

# This isn't meant to be run as a script exactly, but github has better syntax hilighting if I pretend.

chr=${PWD}/testroot
mkdir -p $chr/{bin,lib,lib64,native,var}
cd $chr
cp -v /bin/{bash,touch,ls,rm} $chr/bin
list=(
   $(ldd /bin/bash | egrep -o '/lib.*\.[0-9]')
   $(ldd /bin/touch | egrep -o '/lib.*\.[0-9]')
   $(ldd /bin/ls | egrep -o '/lib.*\.[0-9]')
   $(ldd /bin/rm | egrep -o '/lib.*\.[0-9]')
)
list=( $(tr ' ' '\n' <<< "${list[@]}" | sort -u | tr '\n' ' ') )
for i in ${list[@]} ; do cp -v --parents "$i" "${chr}"; done
/native/usr/sbin/mount -O -F lofs /native ${chr}/native/
cp -v --parents /var/ld/64/ld.config $chr

# You're ready, now run it.
chroot $chr bin/bash

The key to using a chroot on lx-brand is that you need:

• /native mounted inside of your chroot
• /var/ld/64/ld.config

To prune the chroot, make sure to unmount /native first.

umount ${chr:?}/native
rm -rf ${chr:?}