FreeBSD 13.0 Upgrade Gotcha document?

[Graham Perrin]

On 16/04/2021 22:01, andrew clarke wrote:

>> *) Zpools probably need to have 'zpool upgrade' done on them.
> … FreeBSD 13.0 should function fine on older pool versions.

True for 13.0-CURRENT. Should be true for 13.0-RELEASE.


>> *) Make sure to re-install your boot loader before you
>>    `zpool upgrade zroot` to not break bootloader.
> I believe "zpool upgrade" previously warned the admin to run
> "gpart bootcode" to install the most recent bootcode for a ZFS
> boot pool, but in 13.0 that warning is gone.


>From <https://www.freebsd.org/releases/13.0R/relnotes/#boot>:

 >>> … To update old ESP partitions, users should stop using the 
gpart(8) 
<https://www.freebsd.org/cgi/man.cgi?query=gpart&sektion=8&format=html> 
utility. Instead,…