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 ([email protected])
              ([email protected])
Brain Imaging Centre
Montreal Neurological Institute
3801 University Street
Webster 2B, Room 206
Montreal, Qc., Canada, H3A 2B4
Phone  : (514) 398-4965, Fax: 398-8948
Mobile : (514) 712-1768
Office : 527 Av Des Pins O., Room 104
         Montreal, Qc., H2W 1S4

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