I may have misconfigured my Coreboot ROM, what did I do wrong?

[Tristan Young]

Today, I internally flashed a Coreboot ROM that I partially built myself to
the motherboard of my ThinkPad T440p. But when I restarted my computer, it
started constantly beeping, and turning it off and on didn't change that
result. Luckily, I fixed it by flashing my previous Coreboot BIOS (SeaBIOS)
to the top 4 MiB chip externally using my Raspberry Pi.

But there are some things that were different in the build configuration
for the newer BIOS, such as trying to use a bootorder file to make SeaBIOS
try to boot from my HDD first instead of my CD/DVD drive, as well as
setting the options to clear the DRAM on each boot. I also didn't use the
cleanbuild option after different build attempts for the newer BIOS.

Should I send my .config file so that you can tell if any of the config
settings or combinations of them that I chose wouldn't work on my specific
model of ThinkPad? And should I also send over an actual 4MiB binary of the
BIOS I flashed that didn't work?

[Peter Stuge]

Hi Tristan,

Tristan Young wrote:
> fixed it by flashing my previous Coreboot BIOS

Great job - well done!
> Should I send my .config file so that you can tell if any of the config
> settings or combinations of them that I chose wouldn't work on my specific
> model of ThinkPad?

You can send the config but don't expect that someone else will
analyze your problem.

Ideally, please instead investigate this yourself and share your
findings (also along the way if you like) - if you can arrive at a
clear conclusion then there is at least some possibility that someone
else improves the code in case that makes sense.


Kind regards

//Peter

[Mike Banon]

Hi there Tristan, One of the ideas could be taking a config from some
successful board-status coreboot report available online, and diff'ing
it against your own config i.e. using the meld/kdiff3 utilities.


On Sat, Jun 25, 2022 at 4:26 PM Peter Stuge <[e-mail]> wrote:
> Hi Tristan,
>
> Tristan Young wrote:
> > fixed it by flashing my previous Coreboot BIOS
>
> Great job - well done!
> > Should I send my .config file so that you can tell if any of the config
> > settings or combinations of them that I chose wouldn't work on my specific
> > model of ThinkPad?
>
> You can send the config but don't expect that someone else will
> analyze your problem.
>
> Ideally, please instead investigate this yourself and share your
> findings (also along the way if you like) - if you can arrive at a
> clear conclusion then there is at least some possibility that someone
> else improves the code in case that makes sense.
>
> Kind regards
>
> //Peter
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