Problems with botched update and attempted rollback

Z

zenergy

Hello, I have/had an 11.3 system which I attempted to update to a current version. I was updating minor versions step by step and ended up with 11.4. The upgrade attempt to 12.0 from 11.4 failed, I found previous posts related to that issue. I was able to load the old kernel, using option 5 at the boot menu and restoring /lib, /user/lib files to get commands working, as well as freebsd-update from an 11.4 usb boot image.
I am booting in using single user mode as well.
When I attempt the freebsd-update rollback I get the error "Directory does not exist or is not writable: /var/db/freebsd-update.
The problem I am having is, I do have that folder with files in it, but it is still saying the error above. I also tried a freebsd-update fetch and I still get that error.

At this point, I think I will need to do a fresh install, but I would really like to fix the problem, in case I run into update issues again. I have a geom mirror that I do not want to lose in a reinstall (not boot drive). If that is even possible.

Any Ideas what could be causing the error?
 
In single user mode only the root filesystem is mounted and will be read-only. It remounts read-write during the boot process after it has done a filesystem check. If you want/need to make changes after booting to single user mode you're going to need to perform the filesystem check and remount yourself.

If this is a really old system you may even have a separate filesystem for /var, which won't be mounted at all in single user mode.
 
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