Updating to 13-stable and existing ZFS pools: any gotchas?

[tech-lists]

On Sun, Mar 14, 2021 at 09:59:21AM +0100, Stefan Bethke wrote:
> I'm planning to upgrade three production machines with existing ZFS pools 
> to 13-stable. Is there anything I need to pay attention to wrt OpenZFS? 
> Or should it be fully transparent, apart from updating loader?
>
> My (limited) testing with VMs went without a hitch, but I want to make sure 
> I don't paint myself into a corner.

Hi, I'm interested in this as well.

I'm not using root-on-zfs. The zpool is 5* spinning rust, the booting
media is ssd/ufs2. Is updating the bootcode only relevant for
root-on-zfs? I've not done that for a similarly configured desktop
system, and it seems to be running stable/13 fine. (the desktop was a
stable/12 to stable/13 upgrade).

thanks,
-- 
J.
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