[coreboot] usbrom progress

Russell Whitaker russ at ashlandhome.net
Thu Aug 20 04:08:32 CEST 2009



On Wed, 19 Aug 2009, Jason Wang wrote:

> 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.

Take a look at "http://grub.enbug.org/Manual".

    Russ

> 
> 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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