Solved zfs:zrrot/ROOT/default failed with error 6 after fresh install

[oprrr]

So, this post serves as a solution for those who might encounter the same situation. First, this is how everything happened.

I have 2 drives installed on the system, I installed FreeBSD 13.2 on the second drive, tested out that everything works fine.

Then, I installed the same system again onto the first drive, that's when zfs:zrrot/ROOT/default failed with error 6 happened.

After some time of digging, I found that it was because although I have used gpart destroy -F /dev/ada1 to destroy the second drive, the zroot label is still on it, which caused the issue.

So, to solve the problem, boot into live CD, enter a shell, run zdb -l /dev/ada1 on the second drive, it will show all zroot label that's still attached to any partition, even though not in use. And a zpool import will show you the ONLINE and UNAVAILABLE labels.

To clear the unavailable labels, just do zpool labelclear -f /dev/ada1, make sure to backup any data there, I don't know what's gonna happen if there's anything you need there up on the disk.

After that, a reboot will take you into the newly installed system.

Hope this helps save some one time.

Peace.

 

[meaw229a]

.....

Hope this helps save some one time.

Peace.

Thank you oprrr. Today was the day your post helped some one. It pretty much rescued my bum earlier today.

I was moving my FreeBSD 13.2 installation from a sata ssd to a pci ssd and at the same time upgrade to 14.0. This worked quite well.
However I wanted to use the old sata ssd as a backup disk as a second device after the new pci ssd. As you described I also did a
gpart destroy -F /dev/ada0 to destroy the old system disk and in top of it I formated the disk with a ufs file system.
Unfortunately that was not good enough to get rid of the old sata ssd's histoty as a zfs system disk.
After a reboot I ended up with ZFS failed to boot error 6.

zpool labelclear -f /dev/ada0 fixed it.

As said, Thanks Mate!