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Date:      Mon, 29 Apr 2019 21:58:06 +0300
From:      Toomas Soome <tsoome@me.com>
To:        lausts@acm.org
Cc:        Ian Lepore <ian@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: Question about 'gptzfsboot'
Message-ID:  <1AE55D88-B509-44B9-953E-A5BFBF383102@me.com>
In-Reply-To: <9ed708cc-8b16-12e7-9119-aeebb412317c@acm.org>
References:  <f2f43092-4417-2683-04f1-724d12eed1e9@acm.org> <op.z0yhbhqykndu52@sjakie> <01d10a11-49b2-2982-01cb-b49a0831d30b@acm.org> <5de29e0b5228d7eb0aac8e0eec116896f11ea862.camel@freebsd.org> <a6e9953f-6ed9-1d60-893c-6dcedb05895c@acm.org> <5bf88341-80f0-3aff-f51a-0b1975530f2e@acm.org> <0848043e68641ea47b918b8480ac8a5a3bb773e0.camel@freebsd.org> <940cbef4-67a9-1f8e-2bca-35b41e4a08f9@acm.org> <9ed708cc-8b16-12e7-9119-aeebb412317c@acm.org>

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> On 29 Apr 2019, at 21:47, Thomas Laus <lausts@acm.org> wrote:
>=20
> On 2019-04-29 14:27, Thomas Laus wrote:
>> It was more than a broken console.  All of the other 2 computers that =
I
>> upgraded to r346885 were essentially 'dead'.  I could not even =
remotely
>> login to them via ssh.  All of them required a hard power button =
reset
>> to get into single user mode to let me comment out the rc.conf line =
that
>> loads the DRM driver.  The computer could successfully boot without =
DRM
>> activation but would go to a black console screen again with =
'startx'.
>> This also required a hard power button shutdown.  I rolled back to
>> r346544 and everything worked again like before.
>>=20
>> My disastrous update to r346885 included installing a new gptzfsboot =
and
>> pmbr in the drive boot record.  I did not try booting an older kernel
>> using the new gptzfsboot.  I was concerned about the lack of ssh =
login
>> when the computers lost their console, so I just rolled back my =
system
>> to the last snapshot made a week ago.
>>=20
> Ian:
>=20
> I re-activated the r346885 BEADM snapshot and booted from my
> 'kernel.old' from r346544 and everything came up OK including 'X'.
>=20
> I don't know what that means.  It might be that I have a DRM issue
> instead of a gptzfsboot problem?  Everything except for the kernel is
> now running CURRENT r346885.  I am not using the updated
> drm-current-kmod because I am using the r346544 kernel.old.
>=20

It means you have different issues - one is about gptzfsboot causing =
boot problems and apparently it got fixed when you did update the =
bootcode (the boot partition is global). But also you got bitten by DRM =
update, and since you had old BE around, you were able to load old =
kernel.

Now the question is, is that gptzfsboot issue really fixed or is it just =
the =E2=80=9Cwarm boot=E2=80=9D fix you were seeing earlier too.

rgds,
toomas


> Tom
>=20
>=20
> --=20
> Public Keys:
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> GnuPG KeyID =3D 0x620836CF
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