Date: Fri, 15 Oct 2004 20:06:33 +1000 From: Peter Jeremy <PeterJeremy@optushome.com.au> To: Chuck Swiger <cswiger@mac.com> Cc: freebsd-current@freebsd.org Subject: Re: atapicam(4) as KLD? Message-ID: <20041015100633.GA45863@cirb503493.alcatel.com.au> In-Reply-To: <416EE19D.50400@mac.com> References: <20041013205141.GA874@galgenberg.net> <20041014105927.GU718@empiric.icir.org> <200410141341.29774.michaelnottebrock@gmx.net> <416EC5F4.8000203@mac.com> <416EDA36.1070403@DeepCore.dk> <416EE19D.50400@mac.com>
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On Thu, 2004-Oct-14 16:29:17 -0400, Chuck Swiger wrote:
>Is burncd able to burn a DVD [+/-{R,W,RAM}] to an IDE device without using
>ATAPICAM?
dd(1) does a reasonable job of burning pre-formatted DVD+RWs. I would
expect it to handle DVD-RAM but I'm not sure about write-once media.
> I think it is not unreasonable to expect the GENERIC kernel to
>be able to burn DVDs, as that can make for a reasonable backup mechanism.
I tend to agree. For some time, FreeBSD has been heading away from
requiring users to re-compile the kernel. If ATAPICAM can't be
(readily) turned into a module, it would seem reasonable to have it
built into GENERIC.
Whilst we're discussing ATAPICAM, even after I make /dev/cd0[ac] mode
666, I can't write to it as a non-root user. Does anyone know the
rationale for this and which particular EPERM is the culprit? I've
had a quick look at the source but can't see nothing leapt out.
>[ Peripheral note: DVDs are OK for backup, that is, but I much prefer tapes
>for durability and long term storage. Quantum sDLT 220 drives rock. ]
I can buy a DVD writer for about USD100. An SDLT drive is about two orders
of magnitude more expensive. Likewise, the media is around two orders of
magnitude more expensive. In $/GB, DLT is only 2-3 times as expensive but
the capital cost is somewhat of a killer.
--
Peter Jeremy
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