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Groups > comp.os.linux.hardware > #2616

Re: DVD Drive not recognized after installing OS

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On 2014-12-10, Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> wrote:
> Hello,
>
> Johnny a écrit :
>> On 9 Dec 2014 20:25:04 GMT
>> Charlie Gibbs <cgibbs@kltpzyxm.invalid> wrote:
>> 
>>> Looks like the disk might have a bad spot.  Try another disk.
>>> If that doesn't halp, maybe there's something wrong with the drive;
>>> if you have another DVD drive, try swapping it in.
>> 
>> It looks like you are right, I put a music CD in and it played.
>
> The drive may also be faulty. I've had faulty DVD drives which could
> still read some media (CD, DVD-ROM...) but not others (DVD-ROM,
> CD-R/W...) any more.

Yeah ...and if the comp is in a environment where
much dust, fine cat hairs, etc. exists,
the particulates are sucked into the case of the comp,
and the lens on the laser can collect crap. Sometimes
you can brush off the lens without removing the
case on the optical drive to clean it. 
(there are special disks with
brushes on them for this purpose)
If someone smokes a lot and the comp is in a location nearby,
the lens will be soiled with crap that only alcohol 
or such can remove. In this case you have to 
remove the case cover on the optical drive
to be able to clean the lens though. Sometimes the rails (rods)
and screw drive which have lubrication on them 
collect dust and absorb the lubricant 
and thus the optical mechanism binds occasionally, 
cleaning the rails and the screw, then adding a SMALL amount 
of lubricant can sometimes bring it back to life. 
But it would be a chore most would not attempt as 
optical drives are rather cheap these days. 
More than likely as someone else mention in this thread
there is or was some crap on that disc. Sometimes washing
the problematic disc with dish soap and water, and drying
with lintless cloth works. If there are minute scratches
on the disk, I have polished them out by using a very, very
fine pumice liquid polish to remove them,
(glass polish for example) then made use of "dd" to pull the data
off the disc, making a ISO file for reburing to new media.

dd if=/dev/sr0 of=/path/to/myCD.iso bs=2048 conv=noerror,sync
or 
dd if=/dev/sr1 of=/path/to/myCD.iso bs=2048 conv=noerror,sync

To find optical drive device(s):
dmesg | grep sr[0,1,2,3]

or
hdparm -Ig /dev/sr[0,1,2,3]

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DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-09 12:44 -0600
  Re: DVD Drive not recognized after installing OS Markus Heinz <markus.heinz@uni-dortmund.de> - 2014-12-09 19:57 +0100
    Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-09 13:19 -0600
      Re: DVD Drive not recognized after installing OS Markus Heinz <markus.heinz@uni-dortmund.de> - 2014-12-09 20:51 +0100
        Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-09 14:17 -0600
          Re: DVD Drive not recognized after installing OS Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2014-12-09 20:25 +0000
            Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-09 14:52 -0600
              Re: DVD Drive not recognized after installing OS Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2014-12-09 22:54 -0600
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 09:48 -0600
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 16:26 +0000
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 10:45 -0600
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 18:04 +0000
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:08 -0600
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 19:59 +0000
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:08 -0600
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 19:55 +0000
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:59 -0600
              Re: DVD Drive not recognized after installing OS Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2014-12-10 12:17 +0100
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 13:33 +0000
                Re: DVD Drive not recognized after installing OS Michael Black <et472@ncf.ca> - 2014-12-10 13:33 -0500
      Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 18:09 +0000
        Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:13 -0600
          Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:37 -0600
            Re: DVD Drive not recognized after installing OS Aragorn <thorongil@telenet.be.invalid> - 2014-12-10 20:46 +0100
              Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:53 -0600
          Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 20:30 +0000
            Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 14:42 -0600
            Re: DVD Drive not recognized after installing OS Johnny <johnny @invalid.net> - 2014-12-11 06:24 -0600
              Re: DVD Drive not recognized after installing OS Aragorn <thorongil@telenet.be.invalid> - 2014-12-11 15:18 +0100
                Re: DVD Drive not recognized after installing OS Johnny <johnny @invalid.net> - 2014-12-11 08:56 -0600

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