Re: grub legacy to grub2 upgrade path

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 23.02.2012 05:14, address@hidden wrote:
> I am a senior developer for the Frugalware Linux distribution, and I am
> trying to find an upgrade path so we can leave grub legacy behind. Normal
> disk installations work perfectly under testing, however I have found a
> snag with RAID installations we have to support that were setup under grub
> legacy, which we installed under metadata 0.90 because of the limitations
> of grub legacy.
>
> The problem appears to be this bug: http://savannah.gnu.org/bugs/?34250
See parallel thread for heuristics. However note that this setup is 
fundamentally broken
> It effects RAID setups that only use a single partition per disk, and in
> my tests I got errors from grub-install of this kind:
> http://frugalware.org/paste/13418
>
> The problem seems to be that grub2 is unable to deduce *where* the RAID
> really is.
>
> I tried installing to the MBR of both disks and RAID device, using a
> simple grub-install command. (grub-install /dev/md0, etc.) I did my
> testing with a mostly vanilla 1.99 grub2.
>
> If any of our users happen to run into this issue, what are we to tell
> them to do? I'd like another option than forcing them to have to redo
> their RAID setup.
>
> Any insights would be appreciated.
>
>
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--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko