Date: Tue, 18 Dec 2001 16:56:38 +0100 (CET) From: Søren Schmidt <sos@freebsd.dk> To: Erik Moe <emoe@mmcable.com> Cc: freebsd-multimedia@freebsd.org Subject: Re: Making audio CDs with FreeBSD Message-ID: <200112181556.fBIFucc04590@freebsd.dk> In-Reply-To: <3C1F6845.98E1F33F@mmcable.com>
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It seems Erik Moe wrote: > > Yes, that definitely worked, of course you should know :). Wasn't aware > that those device files existed. In fact, they didn't exist on my > system until I did a "MAKEDEV acd0t32". Which brings me to my next > question, what is the difference between acd0a and acd0c? I know that > historically the "a" partition was the root partition and "c" > represented the entire drive, but what do they represent in the context > of a CD-ROM? At one time in FreeBSD's history I remember reading a man > page that described the difference. Thought it had to do with the > locking mechanism of the tray, using one device locked the tray, the > other didn't. It only for historical reasons, 'c' meant entire disk, 'a' was the first partition (which doesn't make sense on a CD). Under FreeBSD current I've changed it to just be acdX and acdXtY no wierd subdevices (well the still do exist for backwards compat but use should be discouraged... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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