Re: flashrom package needs update

[ng0 <ng0@we.make.ritual.n0.is>]

Okay, but the package still needs an update, is someone up to this?

The patch we apply needs to be adjusted.

Kei Kebreau <kei@openmailbox.org> writes:

> [ Unknown signature status ]
> ng0 <ng0@we.make.ritual.n0.is> writes:
>
>> Kei Kebreau <kei@openmailbox.org> writes:
>>
>>> [ Unknown signature status ]
>>>
>>> ng0 <ng0@we.make.ritual.n0.is> writes:
>>>
>>>> ng0 <ng0@we.make.ritual.n0.is> writes:
>>>>
>>>>> Someone should update flashrom to 0.9.9. (https://www.flashrom.org/Flashrom/0.9.9)
>>>>> I tried and do not understand enough of flashrom to update the patch we need.
>>>>
>>>> Additionally we need to check what's different about GuixSD that this
>>>> happens:
>>>>
>>>> root@shadowwalker /home/ng0# flashrom -p internal -w libreboot_latest_stable.rom
>>>> flashrom v0.9.7-r1711 on Linux 4.7.0-gnu (x86_64)
>>>> flashrom is free software, get the source code at http://www.flashrom.org
>>>>
>>>> Calibrating delay loop... OK.
>>>> Error accessing high tables, 0x100000 bytes at 0x000000007dad6000
>>>> /dev/mem mmap failed: Operation not permitted
>>>> Failed getting access to coreboot high tables.
>>>> ========================================================================
>>>> WARNING! You seem to be running flashrom on an unsupported laptop.
>>>> Laptops, notebooks and netbooks are difficult to support and we
>>>> recommend to use the vendor flashing utility. The embedded controller
>>>> (EC) in these machines often interacts badly with flashing.
>>>> See the manpage and http://www.flashrom.org/Laptops for details.
>>>>
>>>> If flash is shared with the EC, erase is guaranteed to brick your laptop
>>>> and write may brick your laptop.
>>>> Read and probe may irritate your EC and cause fan failure, backlight
>>>> failure and sudden poweroff.
>>>> You have been warned.
>>>> ========================================================================
>>>> Aborting.
>>>> Error: Programmer initialization failed.
>>>>
>>>>
>>>>
>>>> I value that GuixSD seems to be more protective than any other system in
>>>> that regard where I could just become root and run flashrom, but maybe
>>>> we need to make an exception for flashrom and similar software.
>>>> Booting into ubuntu-live and running a statically linked binary of
>>>> flashrom just made me flash libreboot stable. I want to do this from
>>>> within GuixSD.
>>>
>>> This is mentioned in Libreboot's documentation (top of the page here:
>>> https://libreboot.org/docs/install/index.html). The GuixSD Linux-libre
>>> kernel is configured with CONFIG_STRICT_DEVMEM enabled, which I presume
>>> Libreboot uses for software-based flashing.
>>>
>>> If you add linux to the list "use-package-modules" in your system
>>> configuration and add (kernel-arguments '("iomem=relaxed")) to your
>>> "operating-system" configuration, the flashing utility will work correctly.
>>
>> Oh, interesting. Thanks for the explanation. Do you think we should add
>> a pointer to this somewhere in the documentation, or add a link pointing
>> to this email thread?
>> I feel like this needs to be explained or be visible somewhere at our
>> side.
>>
> I agree. It should probably be mentioned in the "System Configuration"
> section of the manual. I would take me some time to write it up, as my
> schedule is just starting to calm itself and I have no experience with
> texinfo, so if someone else picked it up before me, I wouldn't complain.
>
>> I think I want to keep this feature, and reconfigure the system only for
>> updating libre/coreboot.
>>
> I agree here, too.
>
>> Thanks
> You're welcome! :-)

-- 
ng0
For non-prism friendly talk find me on http://www.psyced.org