[Wolves] dd usage?

Chris Ellis chris at intrbiz.com
Wed Jun 4 15:06:42 UTC 2014


On Wed, Jun 4, 2014 at 3:59 PM, Kevanf1 <kevanf1 at gmail.com> wrote:

> I would like to clone a system (Fedora 20 if it upgrades successfully
> from 19) and put the lot onto a larger hdd.  I think the command I
> want is
> dd if=sda1 of=sdb1
> <snip>
> --
> ==============================================
> Kevan

You have the basics correct:

if = input file
of = output file

Usually, it is worth setting the block size (bs), this can speed things up
(or slow things down).

If your going to mirror the whole drive, your should use:

dd if=/dev/sda of=/dev/sdb

That would mirror the partition table, MBR, etc as well

I tend to use, for this kind of thing:

dd if=/dev/sda of=/dev/sdb bs=1m

Then you can grow the partition using what ever tool you like.

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