2.4.1 Reinstall, ZFS Mirror, GEOM "Operation not permitted"

CNLiberal

I'm doing a fresh install of 2.4.1. Box previously had 2.3.4_1 installed in GEOM mirror. I want to try out ZFS mirror. When I do an AUTO ZFS install, I choose MIRROR, and choose the 2 256GB SSD disks. I hit INSTALL, and I see:

gpart: geom 'ada0' : Operation not permitted

I've done a quick search on these forums but am not seeing anything related to ZFS. I've also tried to break the mirror from the installer MANUAL method. But I'm not seeing a way to break that mirror. Every time I try to break the mirror, I'm told the root partition must exist and am taken back to the manual mode. I can't break the mirror at all. Any help would be appreciated. Thanks!

CNLiberal

OK, so I read up a bit on RAID1 in FreeBSD. I ran the following in the SHELL in pfSense 2.4.1 installer:

gmirror list | less

This outputted the GEOM name: pfSenseMirror

I then ran:

gmirror destroy -f pfSenseMirror

Then:

gmirror clear ada0
gmirror clear ada1

That finally killed the old partition and allowed me to install ZFS mirror.

MacUsers

Years old but saved me tonight
Only thing is no need to run gmirror clear adax: with gmirror destroy, adax are already de-associated. It was giving me error.

-S

Hans from Berlin

another three years later and saved me too!! thanks

markn6262

Saved me too with just the gmirror destroy...
Odd the memstick installer doesn't do the gmirror destroy as an option.

stephenw10

For reference: https://docs.netgate.com/pfsense/en/latest/troubleshooting/multiple-disks.html#clear-the-disk