On K, 2009-06-24 at 17:54 +0200, Peter Stuge wrote:
Harald Gutmann wrote:
What do I need except a kernel image which has all drivers compilled in? What needs to be done to get this setup working?
Two ways:
- Use mkelfImage to get a payload from vmlinux See http://www.coreboot.org/Mkelfimage for download info.
mkelfImage -t vmlinux-i386 --kernel=~/linux-version/vmlinux --output=~/linux.elf
~/linux.elf is your payload. Add ramdisk if you like.
- Try using vmlinux as payload directly, it might work, we don't know
It would be interesting to know if vmlinux+initramfs works: http://www.coreboot.org/Initramfs
Note that you always want to use the uncompressed vmlinux to start with, and enable payload LZMA compression. LZMA compresses better than the in-kernel compression used for bzImage.
I suppose packing twice with LZMA would make no sense either? Having in mind that linux-2.6.30 supports LZMA for bzImage. So kernel code would be packed twice, and the highmem kernel loader in bzImage once for payload.
Waste of decompression time I bet myself without testing.
And thanks - good point about using vmlinux, I hadn't thought of that before reading this thread.
Regards, Mart Raudsepp