On Fri, Dec 31, 2010 at 12:07:01AM -0900, Roger wrote:
- If I use coreboot's "Run VGA Option ROMs", I can get VGA up and the first
thing displayed is one text line of something like "SeaBIOS Version...".
And then I usually get some of my other PCI devices option roms executing as well on the VGA display.
But when I turn "Run VGA & other Option ROMs" off in Coreboot and then modify SeaBIOS config.h with any of these options:
// Support finding and running option roms during post. #define CONFIG_OPTIONROMS 1 // Set if option roms are already copied to 0xc0000-0xf0000 #define CONFIG_OPTIONROMS_DEPLOYED 0 // When option roms are not pre-deployed, SeaBIOS can copy an optionrom // from flash for up to 2 devices. #define OPTIONROM_VENDEV_1 0x00000000 #define OPTIONROM_MEM_1 0xf9000000 #define OPTIONROM_VENDEV_2 0x00000000 #define OPTIONROM_MEM_2 0x00000000
You should not set OPTIONROM_*. Please follow the directions at:
http://www.coreboot.org/SeaBIOS
The issue with your previous run:
Scan for VGA option rom Found option rom with bad checksum: loc=0x000c0000 len=61440 sum=42
indicates SeaBIOS succussfully found the optionrom - it ran into an error running it. In order to debug this, the debugging level must be increased, but nothing else should change.
- SeaBIOS seems to find a lot of things, but still tries to boot from floppy
device (or image), for which I have neither. I thought SeaBIOS was able to boot from the first hard drive partition (ie. grub)? This is what I see on serial console along with the quick f12 boot pause. But pressing f12 only pauses longer with nothing else displayed via serial console. But, I can press ESC and have it reboot, or the wonderful Windows Key will print it's scancode on screen, but no other keys. (See very last lines in log.)
SeaBIOS behaves like a legacy bios, so it will try legacy boot methods (like booting from a floppy). It's nothing to worry about - it isn't harmful or slower in any way.
Attaching log with max debug on.
[...]
Attempting to find coreboot table Found coreboot table forwarder. Now attempting to find coreboot memory map Add to e820 map: 00000000 00001000 2 Add to e820 map: 00001000 0009f000 1 Add to e820 map: 000c0000 17f30000 1 Add to e820 map: 17ff0000 00010000 2 Add to e820 map: ff800000 00800000 2 Add to e820 map: 00000000 00004000 1
Oddly - seabios found the coreboot table this time. I suspect you're having memory controller issues. If so, that needs to be fixed first.
[...]
Scan for VGA option rom Attempting to init PCI bdf 01:00.0 (vd 10de:0253) Searching CBFS for prefix pci10de,0253.rom Found CBFS file fallback/romstage Found CBFS file fallback/coreboot_ram Found CBFS file fallback/payload Found CBFS file Attempting to map option rom on dev 01:00.0 Option rom sizing returned f9000000 fffe0000 Inspecting possible rom at 0xf9000000 (vd=10de:0253 bdf=01:00.0) Copying option rom (size 61440) from 0xf9000000 to c0000 Checking rom 0x000c0000 (sig aa55 size 120) Found option rom with bad checksum: loc=0x000c0000 len=61440 sum=42
It's really odd that the rom isn't checksumming correctly. I'm not sure how OPTIONROM_* interacts here though. It's possible to disable SeaBIOS' checksum check, but if this is a memory controller issue, it will just fail somewhere else.
-Kevin