Re: [tlug] Re: Disk geometry

[Frank Bennett <bennett@example.com>]

On Wed, Apr 03, 2002 at 01:34:31PM +0200, Tobias Diedrich wrote:

> For a sector by sector image you could use dd with conv=noerror,sync to
> make sure it continues even after read errors.

Many thanks.

What is the reason for the "sync" (or "block" or "unblock") directive in the
example? I'm not sure I understand the "blocks" concept.  Is dd sensitive to
blocking info forwarded by the device in some way?  Or does "sync" just pad
out an incomplete final block with nulls?

Frank