coreboot October 2002

coreboot@coreboot.org

77 participants
164 discussions

RFC (again)
by steven james 28 Oct '02

28 Oct '02

Greetings, I have built a firmware chooser as a standalone elf image. Currently, it only concerns itself with tagged ELF flash images, but there is no reason it can't be generalized. The idea is that multiple choices of payloads are pre-pended with a tag including a signature and an ascii description. The chooser finds the tagged payloads and presents a list of descriptions for the user to select from. Since I was doing that anyway, I put together a bare metal toolkit for building elf payloads for LinuxBIOS (and other). It is composed of many pieces of LinuxBIOS itself, bits of Etherboot, and a linker script. The question: Although mostly composed OF LinuxBIOS, and certainly meant for LinuxBIOS, it is standalone. Does any of this belong in the LinuxBIOS tree? (utils, contrib, other)? G'day, sjames -- -------------------------steven james, director of research, linux labs ... ........ ..... .... 230 peachtree st nw ste 701 the original linux labs atlanta.ga.us 30303 -since 1995 http://www.linuxlabs.com office 404.577.7747 fax 404.577.7743 -----------------------------------------------------------------------

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copy extended memory.
by Adam Sulmicki 28 Oct '02

28 Oct '02

hello, can anyone point me to an documenation on bios's interrupt 15, ah=87. It is 'copy extended memory'. I suspect the implementation I have is wrong, and thus stops me from adding support for legacy applications under LinuxBIOS. Going over phoenix manual and Ralf Browns's interrupt list, I know that CX = counter ES:SI = pointer to GDT what is not clear to me is what does determine source and destination of the copy. Would it just copy between first and second segment (if so why it is not documented). -- Adam http://www.eax.com The Supreme Headquarters of the 32 bit registers

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asus p5a
by Missudm＠aol.com 28 Oct '02

28 Oct '02

I got such a card , does LinuxBios work on it ?

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Re: boot the kernel 2.4.19 from linuxbios
by ebiederm＠xmission.com 28 Oct '02

28 Oct '02

"Munjun Kang" <malas(a)pinetron.com> writes: > Dear Eric W. Biederman. > > First of all, thanks for your reply. > I apply some other schem to linuxbios. > This is my boot process. An unreliable scheme, that does not provide the opportunity for running anything except the linux kernel. This is why I suggested a change. [snip current boot process] > Do you have any idea to solve this problem? Already provided but let me reiterate. Many times I have seen a problem like this it has been due to an improper memory controller setup, or a corrupted kernel image. At the very least those two problems should be ruled out before progressing farther. You have not provided the output of ksymoops from your kernel so I have no clue if the crash is related to a specific piece of hardware. memtest86 is good at catching most cases of memory corruption, so please run it and let me know what happens. mkelfImage puts a checksum on the image so there is some verification the image transfered across the network correctly. The latest versions of etherboot check the checksum. The version of etherboot in the linuxbios tree is actively dangerous as it does not call the network card disable routine, so you could receive packets after the kernel is loaded, but before the kernel has initialized the card. Causing your kernel image to be corrupted. And now that I think about it very weird problems may also be caused by only initializing one cpu in a dual cpu setup. So there may be something in the cpu setup that doesn't quite work. I don't know if anyone has worked with the via centaur cpus before. Let alone set them up in a dual cpu configuration. Or is this a single cpu in a dual cpu motherboard? Eric

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booting ide flash from latest etherboot (CVS)
by Ronald G Minnich 28 Oct '02

28 Oct '02

It has a problem getting to flash, but it actually got worse. It doesn't see the flash disk at all in this version. To sum up: fallback + rc4.eb5 -- finds disk, boots it automatically normal + rc4.eb5 -- type 'D' to it, then it finds disk and boots normal + rc5 -- never finds the disk, although BBOT_FIRST is to to BOOT_DISK I bet there's some other config thing I've missed. ron

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P4DPR fully hosted now from the CVS tree
by Ronald G Minnich 28 Oct '02

28 Oct '02

This is great. Our little lnxi cluster is totally supported from CVS. Many thanks to Eric for the port, and to Steve James who shook out some final nits. Also, note that Steve James has integrated the Intel motherboard into LinuxBIOS as well. ron

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P4DPR CONFIRMED
by Ronald G Minnich 28 Oct '02

28 Oct '02

I just built a working bios from the cvs tree for P4DPR! This is the normal, not the fallback. I might just take the final step ... once I resolve the etherboot problems. ron

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(no subject)
by Adam Agnew 28 Oct '02

28 Oct '02

This is mostly for Adam Sulmicki for the benefit of our current project, but it's been about a year since it was mentioned last so I felt it wouldn't help to reiterate (i know i forgot) that there exists another open source bios, tinyBIOS http://www.pcengines.com/tinybios.htm and since his zip file is difficult to uncompress due to patents or some such non-sense, i repackaged it at http://www.missl.cs.umd.edu/~agnew/anopenbios.zip - Adam Agnew

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Re: (no subject)
by Adam Agnew 28 Oct '02

28 Oct '02

On Mon, 28 Oct 2002, Stefan Reinauer wrote: > > http://www.missl.cs.umd.edu/~agnew/anopenbios.zip > The requested URL /~agnew/anopenbios.zip was not found on this server. My mistake. Fixed.

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[COMMIT] vt8231 southbridge.c
by Andrew Ip 28 Oct '02

28 Oct '02

freebios/src/southbridge/via/vt8231/southbridge.c - updated to use pci_find_device -Andrew -- Andrew Ip Email: aip(a)cwlinux.com Tel: (852) 2542 2046 Fax: (852) 2542 2036 Mobile: (852) 9201 9866 Cwlinux Limited Unit 202B 2/F Lai Cheong Factory Building, 479-479A Castle Peak Road, Lai Chi Kok, Kowloon, Hong Kong. Tel: (852)2542 2046 Fax: (852)2542 2036 For public pgp key, please obtain it from http://www.keyserver.net/en.

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coreboot October 2002