Freebsd – the easiest way to upgrade the existing Perl 5.14 to Perl 5.16 on FreeBSD 9 using the ports system

Chroot's on linux are not for security, if you have root, or mount abilites inside a chroot it's easy to break out.

You should obviously drop root using su or similar, as long as the script doesn't have permissions to modify the interpreter files there shouldn't be a problem.

To do this you need to add a larger hunk of code in a copy of su, and the core bits of PAM.

Something like jailkit might be an easier way to manage this:

http://olivier.sessink.nl/jailkit/index.html

I found the answer that I was looking for:

zpool offline tank drivename
<Remove drive>
zpool replace tank drivename
zpool export tank
zpool import tank

This way, I will not have to delete and recreate the zpool and all of the file systems. I'm going to have to think about this.