> > which makes sense, since "rectangular" geometries have been lies for a long > > time (all drives have variable spt.) > > I tried copying the partition table using sfdisk and it complained > about "partition does not start at a cylinder boundary". After re-running > with the --force flag (like a dd copy would do) and formatting the partition, > the system went nuts. hmm, well, I guess you are coming from an older/non-LBA disk. I suppose I should have mentioned that little caveat: don't try the dd trick going from CHS to LBA. LBA->LBA should be OK, and CHS is OK if nheads and nsectors match (and ncyl doesn't go off the end of the disk, of course!) I don't think the kernel's partition code cares much about cylinder-alignment (in the CHS world), but other OS's would. the definition of where the first possible partition starts also depends on the size of cylinders (nheads*nsectors)... > Thanks for the hint of variable number of cylinders, but I rather not rely on > that as I want to solve this in a generic manner. I believe that in an all-LBA world, it's a non-problem. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
