PVR with LinuxBIOS. Etherboot questions
Jochen Roemling
jochen at roemling.net
Tue Apr 27 13:22:01 CEST 2004
Peter Stuge wrote:
>Etherboot was initially developed as a bootrom project targeted at
>boot ROMs on networking cards. Etherboot has turned out to be very
>usable for other purposes as well, such as LinuxBIOS. :)
>
>
Things are becoming clearer now. I remembered the site
http://www.rom-o-matic.net
from the days I fiddled around with LTSP (Linux Terminal Server Project).
Am I right with those assumtions:
1. I decided to use a Gigabit GA-6BXC board. They cost no more than 5,-
Euro + 50,- Euro for a Pentium III 1GHz Slot 1 + few Euro for cheap
SD-RAM. Thats perfect and has enough PCI slots. If the PVR-350
framebuffer makes trouble I have the Option to buy another 5,- Euro ATI
Rage XL AGP card and use this.
2. I follow the documentation in freebios/Documentation/configmanual.ps
and create a build dir
3. do the config and run "make"
4. Create an ELF-image on rom-o-matic.net fitting my NIC
5. Combining the ELF-image with the LinuxBIOS bootloader
6. Create an EEPROM image somehow
7. Buying an EEPROM fitting the mainboard BIOS socket and find someone
who can burn the image to a chip
8. Inserting the chip into the BIOS socket. Boot. Done.
9. The Etherboot will contact my LTSP-server via DHCP/tftp. That's the
part I'm familiar with.
Is this correct? I don't have any clue how steps 5 and 6 will work. Can
you please point me to any document or give me some keyword?
By the way: I've already tried to compile the GA-6BXC bootloader, but
make ended with:
gcc -nostdlib -r -o linuxbios_c.o c_start.o linuxbios.a
/usr/lib/gcc-lib/i486-linux/3.3.3/libgcc.a
gcc -nostdlib -nostartfiles -static -o linuxbios_c -T
/home/jochen/linuxbios/freebios/src/config/linuxbios_c.ld linuxbios_c.o
linuxbios_c.o(.text+0x61f): In function `mainboard_fixup':
: undefined reference to `pci_zero_irq_settings'
collect2: ld returned 1 exit status
make: *** [linuxbios_c] Error 1
The string "pci_zero_irq_settings" does not appear in the Linux Kernel
headers nor in any file of the freebios tree except the function call
that the linker complains about. It is in
src/mainboard/gigabit/ga-6bxc/mainboard.c, so board-specific. Any idea?
>Hope this helps! (Oh, and feel free to edit this short writeup and put
>it on the web somewhere to serve as some kind of status report..)
>
>
>
Yeah, it did. We are not done, but my understanding for this whole
matter grows. Unfortunately my website is in German, but as soon as I
bought the hardware and start fiddling I will compile some kind of HOWTO
or report.
The problem is just that all documentation available is aimed to BIOS
hackers. I know C a bit, can read it quite well and I am able to compile
OSS-software or the kernel, but when it comes to unresolved symbols,
Makefiles or assembly language, I'm out.
Thanks so far, best regards
Jochen
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