Re: UEFI serial bootloader

[Ottavio Caruso <ottavio2006-usenet2012%yahoo.com@localhost>]

On Tue, 16 Jun 2020 at 11:48, Dima Veselov <kab00m%lich.phys.spbu.ru@localhost> wrote:
>
> Greetings,
>
> I have a server with IPMI serial console on COM2, which fails to show
> serial bootloader in UEFI mode. For testing purposes I am using iPXE
> stack with pxeboot_ia32 with console and serial options installed via
> installboot.
>
> UEFI shows itself on every serial port and monitor simultaneously. If
> standard pxeboot is loaded it shows up on the same devices as UEFI, and
> the kernel continues on monitor only, but if pxeboot with com2 option is
> used - it does not show up anywhere, but the kernel works on com2.
>
> I've tried to check the problem on KVM VM but it works as intended -
> UEFI on all devices, pxeboot on programmed device (monitor or serial),
> kernel continues on same as pxeboot.
>
> It would be okay if kernel could have console= boot option, but as far
> as I know it does not, so there is no way I can set up both bootloader
> and kernel to serial device on real hardware.
>
> Is there any clue to check why it happens or any way to debug pxeboot?

Maybe reinstalling the bootblocks with console=auto ?

https://man.bsd.lv/NetBSD-8.0/amd64/installboot#o


-- 
Ottavio Caruso