From owner-freebsd-current Sun Feb 20 4:38:15 2000 Delivered-To: freebsd-current@freebsd.org Received: from freebsd.dk (freebsd.dk [212.242.42.178]) by hub.freebsd.org (Postfix) with ESMTP id A75D937BD03 for ; Sun, 20 Feb 2000 04:38:11 -0800 (PST) (envelope-from sos@freebsd.dk) Received: (from sos@localhost) by freebsd.dk (8.9.3/8.9.1) id NAA91290; Sun, 20 Feb 2000 13:37:57 +0100 (CET) (envelope-from sos) From: Soren Schmidt Message-Id: <200002201237.NAA91290@freebsd.dk> Subject: Re: Question about atapi cdrom behavior (BTC 24X) In-Reply-To: from Donn Miller at "Feb 20, 2000 06:39:25 am" To: dmmiller@cvzoom.net (Donn Miller) Date: Sun, 20 Feb 2000 13:37:57 +0100 (CET) Cc: current@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL54 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG It seems Donn Miller wrote: > Say I do something like > > find /cdrom > > is the HD light supposed to be blinking as if the hard drives are being > accessed? I did the above command (note that it doesn't involve finding > files on the hard drives at all), and basically the HD light and the cdrom > activity light were flashing together. Depends, some ATAPI devices use the activity LED some dont... > I have a BTC 24X ATAPI cdrom drive. I'd like to check to see if anyone > on this list has one of these, and if so, have you had any problems? For > example, if I do > > dd if=/dev/racd0c of=cd.img > > the file cd.img is zero-length, dd hangs (ignores ^C totally), and I get > messages like That because you miss a bs=2k, a CDROM has a 2k sector size, and depending on the drives firmware you get different results when you try a blocksize that is no modulo 2k, your's apparently looses its whits. -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message