java-在chroot中执行命令

Question

I have a python script that runs some scripts and commands against a chroot that and I would like to migrate it to Java.

In python, to work on the chroot, I am doing the following:

os.chdir(root)
os.chroot(root)

And, then when I'm done, I'm doing:

os.fchdir(real_root)
os.chroot('.')
os.close(real_root)

Whenever I execute any commands in python, they're executed against the chroot and I'd like to do the same in Java.

Is this possible, what facilities would I need to use to make this work?

Answer 1

The way I am doing it isn't fancy, but it works. Is there a better solution?

1. mount all filesystems
2. run chroot some-shell
3. use expect library (or something equivalent)
4. unmount filesystems