[coreboot] SeaBIOS, serial output, grub, sgabios does not seem to load
kuzmichevviktorv at gmail.com
Wed Jan 14 12:46:07 CET 2015
Yes, for SeaBIOS I did just like you wrote. However, sgabios may only be
configured by modifying the source files.
On 14.01.2015 13:29, WANG FEI wrote:
> Changing the seabios serial port base address, you should modify it
> via "make menuconfig" command, it's much easy and efficiency.
> It's not recommended to modify the actual source files.
> On Tue, Jan 13, 2015 at 3:33 AM, Martin Roth <gaumless at gmail.com
> <mailto:gaumless at gmail.com>> wrote:
> Hi Viktor,
> Yes, I think having option roms checked is probably required.
> The only other thing I'd recommend is to build SeaBIOS outside of
> the coreboot structure and pull it in as an elf payload. Building
> within coreboot is handy, but it doesn't offer the flexibility or
> control that you get building it yourself.
> On 01/12/2015 01:50 AM, Kuzmichev Viktor wrote:
> On 11.01.2015 07:45, Martin Roth wrote:
> On 01/10/2015 07:53 AM, Kevin O'Connor wrote:
> On Thu, Dec 25, 2014 at 11:45:40AM +0300, Kuzmichev
> Viktor wrote:
> I've been trying to boot grub installed on the
> hard drive using coreboot and
> SeaBIOS as a payload. The motherboard I'm using is
> Intel Mohon Peak. Also, I
> do not use VGA for output, only serial port. So, I
> included the sgabios into
> my rom file. Here is its layout:
> It should have worked. How did you build SeaBIOS,
> what SeaBIOS config
> did you use, and what changes have you made to SeaBIOS?
> As I recall, Mohon Peak uses 0x2f8 for the console serial
> port. Did you set sgabios to output to 2f8 instead of 3f8
> in sgabios.h?
> sgabios.h:#define COM_BASE_ADDR 0x3f8
> Thank you for your replies!
> Just checked sgabios.h and changed serial port base address to
> 2f8. Somehow I missed it earlier, although I did set this
> parameter in both coreboot and SeaBIOS before. Sadly, I do not
> currently have access to Mohon Peak, so I can't really test
> this right now but, hopefully, I would be able to test this in
> a few days.
> Also, I'd like to clarify one more thing. Should Option ROMS
> parameter in SeaBIOS menuconfig be checked for sgabios to
> work? Are there any other nuances I should keep in mind?
> coreboot mailing list: coreboot at coreboot.org
> <mailto:coreboot at coreboot.org>
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