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From: jason@cs.odu.edu (Jason C Austin)
Newsgroups: comp.sys.sun
Subject: Re: Sun's CD-ROM
Keywords: Miscellaneous
Message-ID: <8466@brazos.Rice.edu>
Date: 1 Jun 90 23:05:03 GMT
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X-Sun-Spots-Digest: Volume 9, Issue 196, message 2

In article <8349@brazos.Rice.edu> fitz@dirt.frc.ri.cmu.edu (Kerien Fitzpatrick) writes:
> I have a few questions about Sun's CD-ROM.  Maybe some knowledgeable Sun
> person would be nice enough to respond.
> 
> o How is the mount/unmount handled?  Is root the only person allowed to
>   mount a disc that is in the player?
> o Is there a WORM or eraso-optical unit out on the market that will write
>   a CD capable of being read by Sun's CD-ROM (if so - please point out who)?
> o Our need for something like this is growing.  I would rather have a Sun
>   supported drive since hopefully it will cut down on...  "Well, the driver
>   worked until we upgraded to SunOS 4.8.3"

Since mount is the only way of accessing the CD-ROM as a file system, you
need to be root to change CDs.  In fact, the CD can't be ejected from the
drive as long as it is mounted.  In order to allow a select group of
people to use the CD without giving them root access, I've added a short
setuid to root script that mounts and umounts the CD and is only
executable by people in group cdrom.

I believe the CD-ROM driver for the Sun CD is included in SunOS 4.1, so if
you've already upgraded, you won't need to do quite some much kernal
changing.  

Jason C. Austin
jason@cs.odu.edu