On Tue, Feb 4, 2014 at 9:12 AM, Carmelo Ingrao carmelo@ingrao.fr wrote:
Hi Aaron, first thanks to take the time to answer :)
Le 4 févr. 2014 à 16:03, Aaron Durbin adurbin@chromium.org a écrit :
SeaBIOS was loading correctly until you changed the GBB flags, right? And CTRL+L is just not being detected any longer? Can you change the GBB flags back and determine if the legacy booting still works?
Yes, before doing mess with the gbb flags, the SeaBIOS was correctly working : I have once installed Fedora on my c720 Now CTRL+L is no longer detected (only a sound out the speakers)
Yes I can change the GBB flags, but which one do I have to set ?
I was thinking changing them back to 0x00, but it sounds like you installed Fedora over ChromeOS? And it was working until you changed the gbb flags?
I have read online it may be caused by the wipe of SeaBIOS part in the ROM.
It's possible. Since you are in dev mode, could you run the following? ' iotools mmio_dump 0xffc00000 0x200000 -b | hexdump -C' It will dump the contents of legacy portion of the flash. We'd know for certain if the area is wiped.
I have copy/paste your command, and here is what I obtain :
localhost / # iotools mmio_dump 0xffc00000 0x200000 -b | hexdump -C bash: iotools: command not found
Sorry. I thought you were booting ChromeOS in dev mode (I'm just used to using iotools). Try this:
dd iflag=sync if=/dev/mem bs=2M skip=2046 count=1 | hexdump -C
-Aaron