setup-storage issues ...

[Sylvain Milot]

On Wed, 11 May 2011, Michael Tautschnig wrote:

> Hi Sylvain,
>
> Sorry for the delayed reply.
>
> [...]
>> I then tried the experimental version - version 4.0~beta2+experimental60 at the time
>> and this worked quite nicely. I then recently rebuilt my NFSROOT with the latest experimental
>> version and it now complains about overflow. The behavior is the same whether I use
>> preserve_always or preserve_lazy BTW.
>>
>
> [...]
>
> I'm pretty sure the problem is that we've been changing the alignment
> constraints in 4.0~beta2+experimental* back and forth. I think, back in
> experimental60 you would get sector-based alignment with this setup. For
> backward compatibility with non-experimental versions, however, this has been
> changed to a default of cylinder-based alignment *if partitions are to be
> preserved* in later versions, as this was the default for all official releases.
>
> The most accurate way to work around this would be using
>
> disk_config sda bootable:1 align-at:512B
> ...
>
> disk_config sdb bootable:1 align-at:512B
> ...
>
> Another option would be changing the size of sd{a,b}7:
>
> disk_config sda bootable:1
> primary   /boot      100    ext2   rw,errors=remount-ro
> logical   -          4000   -      -
> logical   -          2950-   -      -
> logical   -          0-     -      -
>
> disk_config sdb bootable:1
> primary   -          100    ext2   -
> logical   -          4000   -      -
> logical   -          2950-   -      -
> logical   -          0-     -      -
>
> Hope this helps,
> Michael

Hello Michael,

It sure did (help)! Considering the fact that your timezone is 6 hours ahead of mine,
that's a pretty fast reply!

Anyway, thanks for your response - I used version 3.4.8 and followed your suggestion to add
"align-at:512B" to my disk configurations ... and it worked very nicely. My partition
was also preserved on the following (re)installation.

All the best,

---
Sylvain Milot (sylvain at bic.mni.mcgill.ca)
               (bicadmin at bic.mni.mcgill.ca)
Brain Imaging Centre
Montreal Neurological Institute
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