How to properly mount a DVD-R/W drive and how to use it from the
o.greve at axis.nl
Thu Oct 6 04:55:05 PDT 2005
This'll surely be a really novice question, but I'd like to get it right
in one go, and RTFM-ing using Google somehow didn't produce uniform
enough results for my likings. :)
The situation: I just installed FreeBSD 5.4-Release AMD64 on my new
machine (though the question is most likely not specific to the AMD64
version, I guess), and upon installation time the machine had a DVD-ROM
/ CD-RW drive. Yesterday I received a new drive, being a DVD-RW drive,
and I replaced the previous one with the new one. O.k., no problem so
far, and the BIOS seems to properly identify the drive.
When booting the machine, the drive is -I think- identified as "DVDW" as
/dev/acd0, and the mountpoint it (re!)uses is /cdrom.
Now, this is where the issue lies. When putting a CD-ROM in the drive,
and trying to access it through the /cdrom mountpoint I get an empty
directory listing (not correct) and when manually trying to do the
mount /dev/acd0 /cdrom
I get the error (on all CD-ROMs):
mount: /dev/acd0 on /cdrom: incorrect super block
Now, the entry in /etc/fstab for this device is set to:
/dev/acd0 /cdrom cd9660 ro,noauto 0 0
Which is fine for a CD-ROM drive.
However: what should the proper settings be for a DVD-RW drive? Surely
at least the 'ro' flag is incorrect, but is that all?
Also: are there other locations where I should tell FBSD (and if so:
how) about the presence of the new drive?
Finally: I do not intent to run X on the machine, as it'll be a
webserver only (well, incl. DB stuff etc.), and the drive is intended
for being used to make remote back-ups on DVD-RW (yes: someone will
physically swap the DVDs when necessary ;) ). What I'd like to know is
what the easiest/best ways are to do so from the command-line. Does
anyone have some scripts for this? Or perhaps some pointers to a good
(preferrably free) program or tutorial?
As always: thanks in advance for your time, and your answers. :)
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