Trying to boot linux off a 2MiB M-Sys DoC2000 chip

Trying to boot linux off a 2MiB M-Sys DoC2000 chip

[Gonzalo Servat]

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Hi

For the last couple of weeks I've been getting closer and closer to
booting a kernel from my 2MiB DoC. :)

I managed to get grub installed onto the DoC yesterday (very exciting
stuff), and I have a ext2 partition (about 1.8MiB in size)

My question is, how do I configure grub to know how to boot off the DoC?
I can get it to boot off an IDE HDD (root hd(0,0); kernel /boot/bzImage;
boot) but how would grub know how to access the DoC's kernel?

Would doc-lilo be a better alternative?

Thanks in advance for any help!

Regards,

Gonzalo.



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Re: Trying to boot linux off a 2MiB M-Sys DoC2000 chip

[Ilguiz Latypov]

On 22 Jun 2002, Gonzalo Servat wrote:

> My question is, how do I configure grub to know how to boot off the DoC?
> I can get it to boot off an IDE HDD (root hd(0,0); kernel /boot/bzImage;
> boot) but how would grub know how to access the DoC's kernel?

Try

  root (dc0)
  kernel /boot/vmlinuz root=/dev/nftla ro

for a filesystem on top of /dev/nftla or

  root (dc0,0)
  kernel /boot/vmlinuz root=/dev/ntla1

for one on top of /dev/nftla1.  The first line may point to a different 
partition that would hold the kernel image.  Such separation allows to 
let GRUB boot a kernel off an ext2 partition.  The kernel in turn can 
mount another ext3 partition under "/".  GRUB is not aware of ext3.

Ilguiz

Re: Trying to boot linux off a 2MiB M-Sys DoC2000 chip

[Gonzalo Servat]

On Sun, 2002-06-23 at 00:49, Ilguiz Latypov wrote:
> 
> On 22 Jun 2002, Gonzalo Servat wrote:
> 
> > My question is, how do I configure grub to know how to boot off the DoC?
> > I can get it to boot off an IDE HDD (root hd(0,0); kernel /boot/bzImage;
> > boot) but how would grub know how to access the DoC's kernel?
> 
> Try
> 
>   root (dc0)
>   kernel /boot/vmlinuz root=/dev/nftla ro
> 
> for a filesystem on top of /dev/nftla or
> 
>   root (dc0,0)
>   kernel /boot/vmlinuz root=/dev/ntla1
> 
> for one on top of /dev/nftla1.  The first line may point to a different 
> partition that would hold the kernel image.  Such separation allows to 
> let GRUB boot a kernel off an ext2 partition.  The kernel in turn can 
> mount another ext3 partition under "/".  GRUB is not aware of ext3.

Hi Ilguiz. Thanks for your reply.

I tried this and Grub doesn't like "dc0". It says "Error 23: Error while
parsing number" .. I tried doing tab completion after the 'dc' but it
kept giving me the same error.

The DiskOnChip is on /dev/mtd0 and my first partition is /dev/nftla1
(ext2)

I configured /boot/grub/{menu.lst,grub.conf} on the DOC but since Grub
doesn't seem to be able to read the DOC, it can't read the menu.lst.

Any help would be greatly appreciated.

Thanks!

Regards,
Gonzalo

> 
> Ilguiz
> 
> 

Re: Trying to boot linux off a 2MiB M-Sys DoC2000 chip

[Ilguiz Latypov]

Gonzalo,

Did you see the recent instruction on applying the MTD DiskOnChip patch 
to GRUB?  It's in

    http://lists.infradead.org/pipermail/linux-mtd/2002-June/005240.html

Ilguiz

On 24 Jun 2002, Gonzalo Servat wrote:

> I tried this and Grub doesn't like "dc0". It says "Error 23: Error while
> parsing number"

Re: Trying to boot linux off a 2MiB M-Sys DoC2000 chip

[Gonzalo Servat]

On Mon, 2002-06-24 at 11:16, Ilguiz Latypov wrote:
> 
> Gonzalo,
> 
> Did you see the recent instruction on applying the MTD DiskOnChip patch 
> to GRUB?  It's in
> 
>     http://lists.infradead.org/pipermail/linux-mtd/2002-June/005240.html

Ah, great. Thanks for that!

I followed the instructions and as I was trying to compile grub-0.92, in
the stage2 directory it gave me lots of 'overriding old commands for
target xxxxxxxxxxx' and 'ignorning old commands for target
xxxxxxxxxxxxx'

where xxxxxxxxxx was for example: nbloader.exec, pxeloader.exe,
diskless.exec, etc.

After all those errors I got a lot of "undefined reference to terminal"
and "undefined reference to debug" and a few other undefined references
and after an undef reference to 'chain_stage2' it exited and didn't
finish compiling. Any ideas?

Thanks again

Gonzalo.

 
> Ilguiz
> 
> On 24 Jun 2002, Gonzalo Servat wrote:
> 
> > I tried this and Grub doesn't like "dc0". It says "Error 23: Error while
> > parsing number"
> 
> 
> 

Re: Trying to boot linux off a 2MiB M-Sys DoC2000 chip

[Mark Meade]

Gonzalo Servat wrote:
> After all those errors I got a lot of "undefined reference to terminal"
> and "undefined reference to debug" and a few other undefined references
> and after an undef reference to 'chain_stage2' it exited and didn't
> finish compiling. Any ideas?

Hi Gonzalo,

Did you try updating automake and autoconf to the latest versions?  I had 
errors compiling GRUB with older versions, but I don't recall if they were 
the same as the errors you described.

Regards,

Mark

Re: Trying to boot linux off a 2MiB M-Sys DoC2000 chip

[Gonzalo Servat]

ahh ha! I did upgrade auto{make,conf} on a different machine and tried
compiling grub on that but evidently the version wasn't new enough. 
It *requires* version 1.5. 
Anyway, I've upgraded automake and autoconf now and aclocal && automake
&& autoconf didn't give any errors this time and I'm in the process of
compiling it but it's already looking a hell of a lot better!

Thanks a lot Mark!

Regards,
Gonzalo.


On Tue, 2002-06-25 at 00:21, Mark Meade wrote:
> Gonzalo Servat wrote:
> > After all those errors I got a lot of "undefined reference to terminal"
> > and "undefined reference to debug" and a few other undefined references
> > and after an undef reference to 'chain_stage2' it exited and didn't
> > finish compiling. Any ideas?
> 
> Hi Gonzalo,
> 
> Did you try updating automake and autoconf to the latest versions?  I had 
> errors compiling GRUB with older versions, but I don't recall if they were 
> the same as the errors you described.
> 
> Regards,
> 
> Mark
> 
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