OpenZFS support merged

[Toomas Soome]

> On 25. Aug 2020, at 19:35, Danilo Egêa Gondolfo <danilo at freebsd.org> wrote:
> 
> On Tue, Aug 25, 2020 at 3:39 AM Matthew Macy <mmacy at freebsd.org> wrote:
> 
>> r364746 merged OpenZFS support in to HEAD.
>> 
>> The change should be transparent unless you want to use new features.
>> I caution against 'zpool upgrade' for the next few weeks.
>> 
>> https://svnweb.freebsd.org/base?view=revision&revision=364746
>> 
>> If you encounter problems please report them to me, Ryan Moeller, and
>> -current.
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> 
> Hi, that is good news.
> 
> It seems that our boot loader will fail to boot after zpool upgrade. Is
> that a known issue?
> 

The loader is not updated to support zstd.

rgds,
toomas

> I've replicated my setup, root zfs over GELI, in a VM to avoid any surprise
> (phew!), and it booted fine after upgrading the system. Although it fails
> after zpool upgrade (yes, I know you've asked us to be cautious with zpool
> upgrade):
> 
> ZFS: unsupported feature: org.freebsd:zstd_compress
> ZFS: pool zroot is not supported
> ZFS: can't find pool by guid
> 
> Thank you!
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