[coreboot] usbrom progress

[Jason Wang]

Hi Kevin,
    After fixing the problem of usbrom int13 AH=08, Now the usbrom can
return correct of CHS parameters. "error 21 "have been resolved, but now the
problem is "error 2" which means it can not find the "/boot/grub/menu.lst"
i am still debugging. Any suggestion will be welcome.

On Mon, Aug 17, 2009 at 12:26 AM, Kevin O'Connor <kevin at koconnor.net> wrote:

> On Mon, Aug 17, 2009 at 12:06:04AM +0800, Jason Wang wrote:
> >  hi all,
> >    here is my usbrom latest progress.
> > 1) usbrom can hook int13
> > 2) usbrom can support int13 lba mode which including int13,ah=02,42,41
> > 3) usbrom can be used to boot grub from usb disk. Grub can step into
> > stage1.5
>
> Great!
>
> > but there still some problems which should be considered
> > 1) how to make usbrom only respond to requests which used for usb not
> hard
> > disk. ( in my eyes, diff these requests by drive number?)
> > 2) how do assign the drive number for usb disk? just followed by 80?
> anyone
> > can give me an details about that?
>
> This is covered in the bios boot specification (bbs) document.
>
> -Kevin
>
> > --
> > Jason Wang
> > Peking University
>



-- 
Jason Wang
Peking University
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