On Thu, Aug 06, 2015 at 09:30:22AM +0200, Matthias Apitz wrote:
El día Thursday, August 06, 2015 a las 07:43:13AM +0200, Paul Menzel escribió:
Hello Paul,
give more information, so when the SeaBIOS developers look into it, they have what they need.
Please publish the commit hash you build SeaBIOS from and the config file.
Additionally, build SeaBIOS with debug level 8 and publish the logs from a working and non-working boot. If you build SeaBIOS with CBMEM console support, you’ll find the logs in the output of `cbmem -c`.
I understand as a developer the request for more detailed information. But I do not have the infrastructure to build Coreboot / SeaBIOS and flash this into the Acer C720 Chromebook. For sure, I also do not have at the moment the knowledge how to do so, but this is a matter of reading documentation.
The C720's I'm using are modified in the BIOS so they do not boot anymore ChromeOS, but via SeaBIOS any other OS, in my case FreeBSD CURRENT.
The only detailed information I have is the version string which says SeaBIOS on power on: SeaBIOS ver. 20131001_113210-build123-m2
Let me know if I could read any further information out of the BIOS using the booted FreeBSD. Or does exist some kind of images to write to an USB key and boot from which could get more information?
Hi Matthias,
It looks like you are running an older version of SeaBIOS (from 2013). There were a number of USB fixes since that time. It also looks like you are running a custom (non chromeos) rom. I recommend you upgrade to a more recent version of the software - either from where the custom rom was originally obtained or from another source. The coreboot download page ( http://www.coreboot.org/Download_coreboot ) lists this site as a source of Chromebook roms: https://johnlewis.ie/custom-chromebook-firmware/rom-download/
If you continue to experience USB problems after upgrading seabios, then you'll need to obtain the coreboot and seabios debug logs. Briefly this is done on Linux with something like:
$ git clone http://review.coreboot.org/coreboot.git $ cd coreboot/util/cbmem/ $ make $ sudo ./cbmem -c
The logs should be forwarded to the seabios mailing list ( seabios@seabios.org ) along with a description of the problem.
Cheers, -Kevin