In D24570#721104, @antranigv_freebsd.am wrote:

Is this at the stage where I could start using it on a test system to provide feedback?

Fix the patch. I don't know why it was failing.

Given that reading a diff of a patch is difficult, the following is a diff of the installed code against my working code. This is copy/pasted so tabs etc may be wrong.

The device in question is:

[dan@r720-01:~] $ sudo smartctl -a /dev/da2
smartctl 7.2 2020-12-30 r5155 [FreeBSD 13.0-RELEASE-p1 amd64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

With the patch:

Without the patch:

I'm going to apply LOCALBASE to other files too. Thank you.

In D24570#551276, @antranigv_freebsd.am wrote:

Correct the documentation

As mentioned by kevans, jail.8 should not be changed, while in rc.conf it should be mentioned that the non /etc/jail.conf Jails will start only when listed in jail_list.