irasnyd / mkchroot

Create a basic chroot environment with binaries and their library dependencies

mkchroot

Create a basic chroot environment by copying binaries and their library dependencies into a directory.

Usage

Create a basic chroot in the directory $HOME/chroot with only the binaries /bin/bash and /bin/ls provided.

$ mkchroot $HOME/chroot /bin/bash /bin/ls

There is also a test mode (dry run mode) which can be invoked using the -n option, which causes the program to take no action, and instead show you what would happen.

Caveats

This program does not attempt to identify anything other than library dependencies of ELF binaries. For example, it will not try to detect the dependencies of shell scripts, and it will not try to detect runtime dependencies (other programs called with fork/exec).

This program will also not identify device nodes which may be needed by the binaries running inside the chroot. You will need to create these yourself. You may also need to mount the /proc filesystem inside your chroot.

Some distributions (such as CentOS 7) symlink /bin -> /usr/bin. If your binaries depend on this, you will need to create these symlinks yourself.

Thanks

This program was inspired by this blog post:

http://www.metashock.de/2012/11/export-binary-with-lib-dependencies/