Re: Problems installing grub on a 'raid' disk

[Christoph Plattner]

Try to make a GRUB boot floppy with

        cd <path-where-grub-stage[12]-is>
        dd if=stage1 of=/dev/fd0 bs=512 count=1
        dd if=stage2 of=/dev/fd0 bs=512 seek=1

Boot from floppy and see, if you can find a (hd0) ....
I don't know, how GRUB looks for the BIOS disks, if you start GRUB 
on the LINUX command line.

But you can also force GRUB using a disk with the `--device-map'
option. But I have not tired yet.

Cheers
        Christoph P.



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address@hidden wrote:
> 
>         Hello,
> 
>         I tried to install grub on a mirror disk drived by hardware
> raid. The raid is adaptec 7899 + dell options, working with a linux 2.2.18
> aacraid drivers v1.0.7, two disks from raid adapters : sda (raid1) sdb
> (raid5), no ide, no other scsi perif.
> 
>         I first configured some stuffs :
> 
> title Linux 2.2.18aac
> root (hd0,1)
> kernel /boot/kernel.2.2.18aac
> 
>         Then I tried a grub-install "(hd0)"  (also fd0) and grub-install
> return this error msg :
> 
> /dev/sda2 does not have any corresponding BIOS drive.
> 
>         Then Grub sayed :
> 
> grub> root (hd0)
> Error 21: Selected disk does not exist
> 
> grub> setup (hd0)
> Error 12: Invalid device requested
> 
> I don't know if it is really a bug or a misconfiguration but i found
> nothing in the docs.
> 
> Thanks
> 
> =- B. Alastae -=
> 
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