[TriLUG] Re: DD question, not related

[James Manning]

[Tanner Lovelace]
> On Mon, 2002-05-13 at 09:02, John F Davis wrote:
> > dd if=/dev/hda of=/dev/hdb
> > 
> >
> Note that this only works if the hard drives are exactly alike and
> are partitioned exactly alike.   Otherwise, you'll end up with
> garbage...

I haven't done this in awhile, but i don't understand the "are partitioned
exactly alike" - since the dd copies the partition table (residing in
the first sector) as well, what would it matter what the dest partition
table was like before the dd?

geometry's a potential issue, but a few years back I did it with diff geom
drives and it worked fine (block size of 1 sector may have helped that)
-- 
James Manning <http://www.sublogic.com/james/>
GPG Key fingerprint = B913 2FBD 14A9 CE18 B2B7  9C8E A0BF B026 EEBB F6E4