Re: [coreboot] usbrom progress

[Kevin O'Connor]

On Mon, Aug 17, 2009 at 12:06:04AM +0800, Jason Wang wrote:
> hi all,
>    here is my usbrom latest progress.
> usbrom can hook int13
> usbrom can support int13 lba mode which including int13,ah=02,42,41
> 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
> 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
>

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  wrote:
> On Mon, Aug 17, 2009 at 12:06:04AM +0800, Jason Wang wrote:
> > hi all,
> >    here is my usbrom latest progress.
> > usbrom can hook int13
> > usbrom can support int13 lba mode which including int13,ah=02,42,41
> > 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
> > 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
> >

usbrom progress

[Russell Whitaker]

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  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
> > 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
> >

usbrom progress

[Carl-Daniel Hailfinger]

On 20.08.2009 04:08, Russell Whitaker wrote:
> On Wed, 19 Aug 2009, Jason Wang wrote:
> > 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".

Sorry, that manual is for the wrong version of GRUB.

Regards,
Carl-Daniel

usbrom progress

[Stefan Reinauer]

Carl-Daniel Hailfinger schrieb:
> On 20.08.2009 04:08, Russell Whitaker wrote:
> > On Wed, 19 Aug 2009, Jason Wang wrote:
> > > 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".
>
> Sorry, that manual is for the wrong version of GRUB.

And the right one is http://www.gnu.org/software/grub/manual/grub.html

usbrom progress

[Russell Whitaker]

On Thu, 20 Aug 2009, Carl-Daniel Hailfinger wrote:
> On 20.08.2009 04:08, Russell Whitaker wrote:
> > On Wed, 19 Aug 2009, Jason Wang wrote:
> > > 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".
>
> Sorry, that manual is for the wrong version of GRUB.

The other version's manual can be found as "info grub".

Russ