OpenZFS support merged

[Matthew Macy]

On Tue, Aug 25, 2020 at 9:36 AM 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?

No. Unfortunately zstd support was merged in to openzfs very late in
the CFT. Features needed for read like zstd need to be white listed in
the loader and added to the support.

-M


> 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!