Re: changes to the zfs boot (was: Re: git: 72a1cb05cd23 - main - rc(8): Add a zpoolupgrade rc.d script)

Quoting "Patrick M. Hausen" <pmh@hausen.com> (from Wed, 9 Nov 2022  
20:02:55 +0100):

> Hi all,
>
>> Am 09.11.2022 um 16:54 schrieb Warner Losh <imp@bsdimp.com>:
>> >>    There is a fixed list of features we support in the boot loader:
>> >>    [...]
>> >>    Any feature not on this list will cause the boot loader to
>> >> reject the pool.
>
> I admit that I do not grasp the full implications of this thread and  
> the proposed
> and debated changes. Does that imply that a simple "zpool upgrade" of the
> boot/root pool might lead to an unbootable system in the future - even if the
> boot loader is upgraded as it should, too?

For a recent pool (zpool get all rpool | grep -q feature && echo  
recent enough): no.

But "zpool set feature@edonr=enabled rpool" (or any other feature not  
in the list we talk about) would render it unbootable.

Bye,
Alexander.

-- 
http://www.Leidinger.net Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF
http://www.FreeBSD.org    netchild@FreeBSD.org  : PGP 0x8F31830F9F2772BF