Re: CD and DVD RW not detected‏

[Frans Ketelaars]

On Thu, 01 Apr 2010 15:25:10 +0200, Ahmad Abou el-naga wrote:

>> > > >> > >> I have 2 devices that are working properly (functioning on
>> > > >> > >> windows and read CD's) but they are not detected on Kubuntu
>> > > >> > >> 9.1 AMD 64 bit
>> > > >> > >> 
>> > > >> > >> they are :
>> > > >> > >> 1- ASUS CD-S520/A5 (CD ROM)
>> > > >> > >> 2- LG CD RW>>>HL-DT-ST DVDRAM GSA-H42N
>> > > >> > >> 
>> > > >> > >> how can I get them to work and fix this?
>> > > 
>> > > Are you sure you typed Alvin's command correctly? $ sudo lshw -c
>> > > disk
>> > > 
>> > > Good luck!
>> > > 
>> > >     -Frans
>> > 
>> > when I typed exactly : '$ sudo lshw -c disk ' I got: "$: command not
>> > found"
>> 
>> The $ is the sign on your prompt that says you're a normal user. I
>> could have used # and left out sudo, but this tends to confuse Ubuntu
>> users.
>> 
>> > on Typing 'sudo lshw -c disk' in the terminal the output was:
>> > 
>> > *-disk
>> >        description: ATA Disk
>> >        product: Maxtor 6V250F0
>> >        vendor: Maxtor
>> >        physical id: 0.0.0
>> >        bus info: scsi at 0:0.0.0
>> >        logical name: /dev/sda
>> >        version: VA11
>> >        serial: V50BM2NG
>> >        size: 233GiB (251GB)
>> >        capabilities: partitioned partitioned:dos configuration:
>> >        ansiversion=5 signature=2bd28d09
>> 
>> Ok, you have no cdrom drives. Did you install Kubuntu from cd a usb
>> stick?
>> 
>> Can anyone confirm this is a kernel issue, or is there a difference
>> between ata and sata drives listing by lshw?
>> 
>> Study the complete output of lshw or install kinfocenter. If your cdrom
>> drives are still missing, you better file a bug report against the
>> linux package.
>> 
>> 
> I installed Kubuntu from a usb stick, and I'm new to Linux so I need
> easy steps. thanks

https://lists.ubuntu.com/archives/kubuntu-users/2010-February/049284.html 
and earlier messages say you could run the Live CD but not install from 
it and "Check disc for defects" failed.

Just for fun: if you run the Live CD what is the output from
'sudo lshw -c disk' ?

Do your optical drives still work in windows?

Could there be a problem with the cable to the optical drives?
( https://answers.launchpad.net/ubuntu/+question/88821 , last entry, the 
OP also got an 'sudo lshw -c disk' output listing just the hard disk).

(Again) good luck!

    -Frans