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
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