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Date: Sat, 30 Jan 2021 12:14:00 +0100
From: Kurt Jaeger <pi@freebsd.org>
To: freebsd-current@freebsd.org, freebsd-fs@freebsd.org,
 Xin Li <delphij@delphij.net>
Subject: Re: zpool upgrade to draid feature: does it require updated zfs boot
 code ?
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Hi!

> > Short question:
> > Does a zpool upgrade on 14.0 (current) for the draid feature
> > require a boot code update ?

> > Long version of the same question:
> > With the draid update, no message was displayed.
> > 
> > Does it require the bootcode update anyway or, if not, why not ?
> 
> This sounded like a bug.  Is it your boot pool, or just a regular data pool?

Its my boot pool.

> >  gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 nvd0
> >  gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 nvd1
> 
> To answer your short question: do I need to update bootcode?  No if
> draid is the only feature that you have enabled on an existing pool, but
> personally I don't recommend upgrading boot pool right now.

The boot pool shows:

zroot  feature@draid                  enabled                        local

> The reason for that "No" answer is 1) the boot code do not currently
> support draid, and 2) enabling the feature won't activate it until draid
> vdev is added to the pool, which is quite unlikely in your case; note
> that if you do add draid vdev, your bootcode won't be able to boot from
> it anymore.

Ok.

-- 
pi@opsec.eu            +49 171 3101372                    Now what ?