Re: EFI boot on Dell PowerEdge R610

> On May 28, 2020, at 20:38, YASUOKA Masahiko <yasuoka@openbsd.org> wrote:
>
> Hi,
>
> On Thu, 28 May 2020 09:46:23 -0700
> Johan Hattne <johan@hattne.se> wrote:
>>> On May 28, 2020, at 06:42, Nick Holland <nick@holland-consulting.net> wrote:
>>>
>>> On 2020-05-28 05:15, Johan Hattne wrote:
>>>> On 2020-05-28 00:56, Johan Hattne wrote:
>>>>> On 2020-05-28 00:43, YASUOKA Masahiko wrote:
>>>>>> Hi,
>>>>>>
>>>>>> On Wed, 27 May 2020 22:32:58 -0700
>>>>>> Johan Hattne <johan@hattne.se> wrote:
>>>>>>> I've been trying to boot the 6.7 installation media from USB via EFI
>>>>>>> on a Dell PowerEdge R610. The screen goes blank and then the thing
>>>>>>> resets (so no kernel output or anything). I can boot the same stick
>>>>>>> via BIOS.
>>>>>>>
>>>>>>> I've been searching for a while without results. Firmware settings
>>>>>>> look sane to me. Is this something anybody has seen before? Any hint
>>>>>>> on where I could even start looking for problems would be very much
>>>>>>> appreciated!
>>>>>>
>>>>>> I'd like you to try the diff attached with the following message.
>>>>>>
>>>>>> https://marc.info/?l=openbsd-tech&m=158280719421562&w=2
>>>>>
>>>>> Thanks a lot, Yasuoka! Is there any chance you could provide a compiled
>>>>> BOOTX64.EFI? I don't have an amd64 build environment at the moment.
>>>>
>>>> After a bit of off-list discussion, Yasuoka concluded that above diff
>>>> won't help here. To clarify the issue: there is no output at all before
>>>> the machine resets, in particular there is no prompt from the EFI boot
>>>> program.
>>>>
>>>> // Johan
>>>>
>>>
>>> Have you tried firmware updates?
>>> That machine is many years old, I'd not be the slightest bit surprised if
>>> the firmware was buggy and didn't boot much of anything in EFI mode other
>>> than Windows and maybe Linux.
>>
>> Thanks, Nick! The firmware is up to date. And the machine does boot e.g. NetBSD through EFI.
>
> Probing serial devices is one of the differences from NetBSD efiboot.
>
> diff --git a/sys/arch/amd64/stand/efiboot/conf.c b/sys/arch/amd64/stand/efiboot/conf.c
> index 3eb745d808d..8d385a4f198 100644
> --- a/sys/arch/amd64/stand/efiboot/conf.c
> +++ b/sys/arch/amd64/stand/efiboot/conf.c
> @@ -89,7 +89,7 @@ int ndevs = nitems(devsw);
>
> struct consdev constab[] = {
> { efi_cons_probe, efi_cons_init, efi_cons_getc, efi_cons_putc },
> - { efi_com_probe, efi_com_init, efi_com_getc, efi_com_putc },
> + //{ efi_com_probe, efi_com_init, efi_com_getc, efi_com_putc },
> { NULL }
> };
> struct consdev *cn_tab = constab;
>
> I put a compiled binary on https://yasuoka.net/~yasuoka/BOOTX64.EFI

Thanks a lot, Yasuoka! The binary you compiled still exhibits the same problem (it immediately resets the machine).

// Cheers; Johan