I am grateful for https://mfsbsd.vx.sk - I've been using it for at least 7 years[1]. I've used it for many things:

* fixing borked boot sectors when I've done the wrong thing
* dd if=/dev/zero when clearing drives
* modifying zpools to reconfigure them before importing them to another host
* looking at dmesg for a host before installing
* other things I have forgotten

I download the thumbdrive image[2], dd it to a thumbdrive, insert, boot, done. It is so reliable and useful.

I can ssh into the host after booting, so I don't have to be at the console. That's a big win for me. Why be in the basement when I could be on my couch or at my desk. :)

[1] - https://dan.langille.org/2015/03/11/modifying-a-zfs-root-system-to-a-beadm-layout/
[2] - https://mfsbsd.vx.sk/files/images/

#FreeBSD