freebsd stable - Mar 2021 - Updating to 13-stable and existing ZFS pools: any gotchas?

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.


Stefan

--
Stefan Bethke <stb at lassitu.de>   Fon +49 151 14070811

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I?ve updated two machines and had no problems, read the mailing 
lists and remember no problem apart from the boot loader.

Updated the boot loader before upgrading the pools, found the way 
for EFI is different then I remembered (mount EFI partition, copy 
/boot/loader.efi to it) but it worked just fine..

So, while I cannot 100% guarantee it?s without problems, I would 
expect no hiccups. And the new bootloader is only needed if/once 
you upgrade your pools, I actually run my laptop for a week with 
quite an old loader ;)

Cheers, Mathias

Stefan Bethke <stb at lassitu.de> writes:
> 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.
>
>
> Stefan

-- 
Mathias Picker                        
Gesch?ftsf?hrer
Mathias.Picker at virtual-earth.de

virtual earth Gesellschaft f?r Wissens re/pr? sentation mbH
http://www.virtual-earth.de/           HRB126870
support at virtual-earth.de               Westendstr. 142
089 / 1250 3943

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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