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Date:      Fri, 1 Dec 2023 15:01:20 -0700
From:      Warner Losh <imp@bsdimp.com>
To:        mike tancsa <mike@sentex.net>
Cc:        FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>
Subject:   Re: EFI and zfs raid mirror partial fail (14.0 and RELENG_13)
Message-ID:  <CANCZdfoKNDhxTY-mZP78YVyvBwyQA=gw7Y0pyR1yC4Y8ZDuowA@mail.gmail.com>
In-Reply-To: <e9f9acd5-6490-4b6d-8cce-a8d7826fe86c@sentex.net>
References:  <c9969fde-3653-43ce-a1f0-322e2dc4a77b@sentex.net> <e9f9acd5-6490-4b6d-8cce-a8d7826fe86c@sentex.net>

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On Fri, Dec 1, 2023, 2:54 PM mike tancsa <mike@sentex.net> wrote:

> On 12/1/2023 3:38 PM, mike tancsa wrote:
> > Was testing out a zfs mirror install and noticed that the install
> > process correctly sets up the same partition scheme on both drives,
> > but only formats and installs the efi boot files on the one disk. For
> > a proper mirror and protection, should not the second disk also have
> > the ability to boot ?
> >
> > Also a little problematic is that the fstab has /dev/gtp/efiboot0
> > mount automatically.  I would think it would be better to optionally
> > mount this. Otherwise, if that disk died, it would be stuck in single
> > user mode since it cant mount that disk.
> >
> Should have looked at open PRs. There is one from a while ago
>
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=258987


I think you are right. Getting redundancy right is hard. We've not set a
pattern to use and updated our tooling to cope with it...

Warner


>
>

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<div dir=3D"auto"><div><br><br><div class=3D"gmail_quote"><div dir=3D"ltr" =
class=3D"gmail_attr">On Fri, Dec 1, 2023, 2:54 PM mike tancsa &lt;<a href=
=3D"mailto:mike@sentex.net" target=3D"_blank" rel=3D"noreferrer">mike@sente=
x.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 12/1/2023 3=
:38 PM, mike tancsa wrote:<br>
&gt; Was testing out a zfs mirror install and noticed that the install <br>
&gt; process correctly sets up the same partition scheme on both drives, <b=
r>
&gt; but only formats and installs the efi boot files on the one disk. For =
<br>
&gt; a proper mirror and protection, should not the second disk also have <=
br>
&gt; the ability to boot ?<br>
&gt;<br>
&gt; Also a little problematic is that the fstab has /dev/gtp/efiboot0 <br>
&gt; mount automatically.=C2=A0 I would think it would be better to optiona=
lly <br>
&gt; mount this. Otherwise, if that disk died, it would be stuck in single =
<br>
&gt; user mode since it cant mount that disk.<br>
&gt;<br>
Should have looked at open PRs. There is one from a while ago<br>
<br>
<a href=3D"https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D258987" rel=
=3D"noreferrer noreferrer noreferrer" target=3D"_blank">https://bugs.freebs=
d.org/bugzilla/show_bug.cgi?id=3D258987</a></blockquote></div></div><div di=
r=3D"auto"><br></div><div dir=3D"auto">I think you are right. Getting redun=
dancy right is hard. We&#39;ve not set a pattern to use and updated our too=
ling to cope with it...</div><div dir=3D"auto"><br></div><div dir=3D"auto">=
Warner</div><div dir=3D"auto"><br></div><div dir=3D"auto"><div class=3D"gma=
il_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bord=
er-left:1px #ccc solid;padding-left:1ex"><br>
<br>
</blockquote></div></div></div>

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