Re: OpenZFS support merged

On 8/25/20 3:49 PM, driesm.michiels_at_gmail.com wrote:
>> -----Original Message-----
>> From: owner-freebsd-fs_at_freebsd.org <owner-freebsd-fs_at_freebsd.org> On
>> Behalf Of Matthew Macy
>> Sent: Tuesday, 25 August 2020 04:39
>> To: freebsd-current <freebsd-current_at_freebsd.org>; freebsd-fs <freebsd-
>> fs_at_freebsd.org>; freebsd-hackers_at_freebsd.org
>> Subject: OpenZFS support merged
>>
>> r364746 merged OpenZFS support in to HEAD.
> First of all a big thank you to the whole team that made this possible!
>
> Secondly, I would like to check in if the following statement is still in
> effect (taken from https://zfsonfreebsd.github.io/ZoF):
> "Beware that the FreeBSD boot loader does not allow booting from root pools
> with encryption active (even if it is not in use), so do not try encryption
> on a pool you boot from"
>
> When we are talking about encryption active, does that mean the feature flag
> active or from the moment one sets encryption=on on any dataset of the root
> pool?

The feature can be enabled on the pool, but as soon as you use it on any 
dataset
the feature goes from "enabled" to "active" and the boot loader will not 
be able
to read the pool, even if you switch encryption back off. At least 
that's how it
was when the ZoF page was written, if it's different now someone may 
correct me.


> As a follow-up, if it is not currently not possible, are there any
> long/short term plans to add the missing bits to our boot loader?µ
>
>> 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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