[mythtv-users] Clone MythTV HDD

[Brian Wood]

On Tuesday 04 August 2009 15:57:51 David Brodbeck wrote:
> Johnny wrote:
> > This weekend I cloned a drive with dd:
> >
> > dd if=/dev/sda of=/dev/sdb
> >
> > It took about 4 hours to do a 250 GB drive.
>
> It usually goes faster if you use a larger block size.  I like:
>
> dd if=/dev/sda of=/dev/sdb bs=1M
>
> I think the default block size is only 512 bytes, which isn't nearly
> large enough to get good performance out of most modern disks.

Remember that dd dates from the times of 1.4MB floppies, and a 20MB HDD was 
gargantuan.

-- 
Brian Wood
beww at beww.org