[ros-dev] HDD Geometry switch

Eric Kohl eric.kohl at t-online.de
Mon Nov 28 22:25:56 UTC 2011


> No drama please!
>
> Indeed let's think constructively, and also let's try to find a good
> solution. But before this, do we really have the problem?
>
> WBR,
> Aleksey.
>

Hello Aleksey,

perhaps my warning about the potential problems with the new disk 
geometry was a bit too loud. But I thought that I should warn everyone 
about potential issues instead of ignoring them.

The only situations where the new disk geometry could cause real 
problems require a harddisk in CHS mode. Calculating an LBA address from 
a CHS address or vice versa require the correct disk geometry.

If the harddisk uses the LBA mode, disk checkers can cause trouble when 
they try to fix the disk. This can happen because partitions might not 
be cylinder-aligned.

Right now, I don't see any other issues. But I might be wrong.


Regards
Eric



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