The wiki is being retired!
Documentation is now handled by the same processes we use for code: Add something to the Documentation/ directory in the coreboot repo, and it will be rendered to https://doc.coreboot.org/. Contributions welcome!
Google Summer of Code 2007
Booting Windows and other Operating Systems in LinuxBIOS
The goal of this sub project is to figure out how to boot Windows Vista/XP/2003. There are three approaches that might proof successful:
- using a dedicated LinuxBIOS loader (ie. adapting ReactOS FREELDR)
- booting Windows on top of Linux using kexec/kboot
- fixing ADLO so that it boots Vista/XP and removing the mainboard dependencies in it's code.
Port Grub2 to work in LinuxBIOS
Grub2 is going to be _the_ bootloader of choice in the forseeable future. As such, it could replace both Grub legacy and FILO, the LinuxBIOS hack for grub compatibility. FILO lacks many features that come with grub2 with no extra effort.
This task splits into four sub-problems:
- Add a target i386-linuxbios, next to i386-pc and i386-efi to the configuration process
- Add an IDE driver that does direct access instead of intXX calls
- Make the build process generate a single static ELF image, like it is done on Sparc
- Add support for reading the memory size from the LinuxBIOS table.
SCSI booting in LinuxBIOS
Currently LinuxBIOS can not boot from an arbitrary SCSI controller. There are two solutions for the problem:
- Use Linux and Kexec. This requires to keep the SCSI driver in the flash chip.
- Use x86emu/vm86/ADLO and the int13 method. This would allow to use the PCI option rom available on all modern SCSI controllers.
So we obviously need a solution based on the later. This could as well be implemented as a Linux program, if you prefer that.
CMOS Config / Device Tree Browser Payload
Unlike other BIOSes, Linux has no such thing as a "CMOS setup". This does not mean that you can not configure it. There is a nice and small Linux command line utility called lxbios for that purpose. But people are often asking for a builtin config tool. Such a config tool could feature VGA graphics (maybe even VESA?), it should be easy to use, allow to browse information from LinuxBIOS' central structure: the device tree, and provide lxbios functionality with some sex appeal.