[plug] copy old hdd to new hdd

[Brad Campbell]

Craig Ringer wrote:
>>>> or do I need to recreate the partition table on the new table and copy
>>>> each partition separately?
>>
>>
>>> The this approach much wiser unless the drives are totally identical.
>>
>>
>> Just checking -  I know the partition table is sensitive to
>> drive geometry, but the partitions dont care, right? ie FAT,ntfs,ext2,
>> etc all just see a partition as a sequence of blocks?
> 
> 
> Correct - all filesystems I know about don't care, so long as the 
> partition is at least as big as the filesystem has been told it is. 
> That's why you can (under linux, which has the kernel infrastructure to 
> support it) loopback mount filesystems from files.
> 
>>   Is it OK to copy the partition table if both disks look the same in LBA
>> mode?
> 
> 
> Maybe. Don't do it unless the drives are identical, just to be safe.

Best way to do it would be to use sfdisk to generate a machine readable 
definition of the partition table and pipe it to sfdisk to create the 
new partition.
There were plenty of examples of how to do this on google last I looked.

Brad
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