On Fri, Aug 15, 2014 at 03:38:30PM -0700, Curt Brune wrote:
First time poster, so take it easy on me :)
This is a great project -- I was able to get a kvm+coreboot+SeaBIOS environment going pretty easily. I started with the master branch of coreboot and went from there.
I am having a problem trying to load a Linux kernel+initramfs payload from SeaBIOS.
I can successfully boot the same kernel+initramfs straight from coreboot (without SeaBIOS) as a payload. Also I can boot the same kernel+initramfs from the hard disk using SeaBIOS when GRUB is installed on the hard disk. So I'm pretty sure my kernel+initramfs is OK.
My rom looks like this:
coreboot.rom: 16384 kB, bootblocksize 1416, romsize 16777216, offset 0x0 alignment: 64 bytes Name Offset Type Size cmos_layout.bin 0x0 cmos_layout 1160 fallback/romstage 0x4c0 stage 19569 fallback/ramstage 0x5180 stage 55849 config 0x12c00 raw 3132 fallback/payload 0x13880 payload 57928 vgaroms/sgabios.bin 0x21b00 raw 4096 etc/boot-menu-wait 0x22b40 raw 8 etc/boot-menu-key 0x22b80 raw 8 etc/boot-menu-message 0x22bc0 raw 34 etc/screen-and-debug 0x22c40 raw 8 img/LINUX 0x22c80 payload 8474826 (empty) 0x837d80 null 8158360
When I break into SeaBIOS during the boot I get this menu:
Select boot device:
- DVD/CD [ata1-0: QEMU DVD-ROM ATAPI-4 DVD/CD]
- Virtio disk PCI:0:4
- Legacy option rom
- iPXE (PCI 00:03.0)
- Payload [LINUX]
When I select "5" I get this:
Searching bootorder for: HALT drive 0x000f4d50: PCHS=16383/16/63 translation=lba LCHS=1024/255/63 s=33554432 Running option rom at cc80:0003 Booting from CBFS... Run img/LINUX Calling addr 0x00040000 ... [System Reboots]
I turned on some debug in coreboot and SeaBIOS and compared the successful boot (coreboot+Linux) to the unsuccessful boot (coreboot+SeaBIOS+Linux). I compared the segment offsets and sizes between the two cases and they were the same. Also the 0x00040000 entry point was the same.
Nothing from your description sounds like it should cause a problem. I recommend increasing the SeaBIOS debug level to 8 and posting the full log.