On 29 April 2008, Alan Bartlett ajb.stxsl at googlemail.com wrote:
2008/4/29 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.
>So what does grep ^hda /var/log/dmesg tell you about your optical drive
>Bill?
>Being a Unix user of 25 years, I'm always a little suspicious of these
>new-fangled things like desktops. ;-)
>However, if you're using Gnome then please have a look at System -->
>Preferences --> Removable Drives and Media
I will do that, ASAP. We have a neighbor using that box, at this time.
>I know that there is a difference in the automount of a data CD/DVD when the
>user is root (basically it doesn't, you would have to right-click on the
>icon and select mount manually) and when the user is a normal user
>(automount err automounts).
>Lanny or Bill - Sorry I'm loosing track. One of you has three boxes;
Lanny is the one with three boxes used as Desktops. We also have a headless router
and a backup router. :-)
> in
>boxes #1 & #2 the drives behaves as you want, in box #3 the drive
>misbehaves. Have you tried the test of swapping the drives in - say - boxes
>#2 & #3 and seeing if the problem moves with the optical drive or stays with
>box, #3?
That would be a PITA, however, I will *probably* do it, someday when I'm in the house
alone and can concentrate on the task. Good idea!
>The hd{a|b|c|d}=ide-cd kludge certainly isn't required with the CentOS 5
>2.6.18-series kernels. I last came across it with a 2.4.8-* IIRC.
Bill posted (above) that he had that left over from a prior installation.
>Just a few more of my thoughts, for now.
Greatly appreciated!
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