[CentOS] DVD reader: Hardware problem or OS glitch?

Tue Apr 29 19:33:43 UTC 2008
William L. Maltby <CentOS4Bill at triad.rr.com>

On Tue, 2008-04-29 at 19:24 +0100, Alan Bartlett wrote:
> 2008/4/29 Lanny Marcus <lannyma at gmail.com>:
>         [root at dell1602 ~]# grep ^hdc /var/log/dmesg hdc: DV-516D,
>         ATAPI
>          CD/DVD-ROM drive hdc: ATAPI 50X DVD-ROM drive, 256kB Cache,
>         UDMA(100)
>         [root at dell1602 ~]#
> 
> Good(-ish). The optical device is there but it's an old combo
> CD/DVD-ROM drive.
> 
> 
>         
>         >Then looked at the symbolic links? ls -l /dev/ | grep hdc
>         
>         
>         [root at dell1602 ~]# ls -l /dev/ | grep hdc
>         lrwxrwxrwx 1 root  root           3 Apr 29 12:30 cdrom-hdc ->
>         hdc
>         lrwxrwxrwx 1 root  root           3 Apr 29 12:30 dvd -> hdc
>         lrwxrwxrwx 1 root  root           3 Apr 29 12:30 dvd-hdc ->
>         hdc
>         brw------- 1 lanny disk    22,    0 Apr 29 12:30 hdc
>         [root at dell1602 ~]#

When I do that, I get nothing. But, this is promising (BTW, my prev
ide-cd thingy was left over from another CentOS box. It's not effective
on this one.).

]# ls -l /dev|grep -i "dvd\|cd"
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 cdrom -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 cdrom-hda -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 cdrw -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 cdrw-hda -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 cdwriter -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 cdwriter-hda -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 dvd -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 dvd-hda -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 dvdrw -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 dvdrw-hda -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 dvdwriter -> hda
lrwxrwxrwx 1 root      root           3 Apr 26 17:52 dvdwriter-hda ->
hda

And

# ls -Ll /dev|grep -i "dvd\|cd"
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 cdrom
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 cdrom-hda
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 cdrw
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 cdrw-hda
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 cdwriter
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 cdwriter-hda
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 dvd
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 dvd-hda
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 dvdrw
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 dvdrw-hda
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 dvdwriter
brw------- 1 wild-bill disk     3,    0 Apr 26 17:52 dvdwriter-hda

I popped a CentOS DVD in, got one image on the desktop and one mount
listed from the mount command and one nautilus box popped up..

I removed that and inserted a Mark Knopfler DVD and totem automatically
popped up to do it's usual bitch about plugins.

Mount showed one on /media/SHANGRILA and desktop had one ICON for it.

> <snip>

My best guess (admittedly, in blissful ignorance) is there is some
configuration problem on that unit.

HTH
-- 
Bill