Subject: Re: dd from raw devices
To: Peter Seebach <email@example.com>
From: Bill Studenmund <firstname.lastname@example.org>
Date: 05/24/2000 15:29:04
On Wed, 24 May 2000, Peter Seebach wrote:
> So, I was looking at a NetBSD 1.4.2 CD, and I noticed that it claims to have
> ~110,000 sectors in cd0a, which is about right if they're 512-byte sectors,
> but it also claims to have 2048-byte sectors. The end result is that I can
> 'dd' at least a full gigabyte off of a ~550-580MB CD-ROM.
What is doing this claiming?
> Feature? Bug? I certainly found it surprising. I was using bs=2k, I'm not
> sure if that's relevant. (Hmm. Nope, same problem using bs=512)
No, that just means that dd will read and write bs bytes at a time.