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Date:      Fri, 24 Jan 2025 11:10:12 -0500
From:      Garrett Wollman <wollman@bimajority.org>
To:        Warner Losh <imp@bsdimp.com>
Cc:        Freebsd-stable List <stable@freebsd.org>
Subject:   Re: not working /dev/console
Message-ID:  <26515.47972.648957.594263@hergotha.csail.mit.edu>
In-Reply-To: <CANCZdfp5vJag=z%2Bf-zgWpdxtTZ12xHGGsses5qrCokEZSmSymg@mail.gmail.com>
References:  <DBE9ABDF-092F-4198-9E14-DF2E0AAB3638@cs.huji.ac.il> <Z0bcQvu36o-rqsJn@fc.opsec.eu> <CAA78225-E266-4CBE-807D-B72D9BCE58E8@cs.huji.ac.il> <CANCZdfoQtYLP62rWO6oTHg4ajbV7SK=ehq2jkv1o0ZX8_im0jw@mail.gmail.com> <365D866D-F7D2-4DB6-AFFB-B4C3829D8467@cs.huji.ac.il> <CANCZdfoiJE6-aKKFhafXPMY8FOg4nEBmhf2hN%2BcJXzMVrkyiqg@mail.gmail.com> <26514.45659.142313.471958@hergotha.csail.mit.edu> <CANCZdfp5vJag=z%2Bf-zgWpdxtTZ12xHGGsses5qrCokEZSmSymg@mail.gmail.com>

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<<On Thu, 23 Jan 2025 23:50:26 -0700, Warner Losh <imp@bsdimp.com> said=
:

> On Thu, Jan 23, 2025, 2:19=E2=80=AFPM Garrett Wollman <wollman@bimajo=
rity.org>
> wrote:

>> Resurrecting an old thread, because I find myself in a position wher=
e
>> I have to get a serial console working on a UEFI-only Dell R360 (wit=
h
>> iDRAC Express, so no remote video console that I can look at).
>>=20

> What version=3F

We're on 13.4.  We hope to go to 14 in the summer.

>> OK efi-show -v ConOut
>> global NV,BS,RS ConOut =3D
>> PciRoot(0x0)/Pci(0x1C,0x4)/Pci(0x0,0x0)/Pci(0x0,0x0)/AcpiAdr(0x80010=
100),/PciRoot(0x0)/Pci(0x1F,0x0)/Serial(0x0)/Uart(115195,8,N,1)/VenVt10=
0()
>>=20

> Odd band rate. Makes me suspect serial clock rate. But this is from t=
he
> bios..

Yes, I'm puzzled about that (and I'm certain that in the BIOS setup it
does not say 115195).  Does the kernel care about the baud rate from
EFI not matching the configuration=3F

-GAWollman




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