DVD Writer shows up in K3b but CDs are not being read.
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I disconnectd the cdrom and made the dvd writer the only device on the cable and I still cannot mount any media. I then hooked up the cdrom and I can mount disks on it, just not on the DVD writer. No matter how I try to mount the DVD writer I get "special device sr0 does not exist"
What is strange though is when I issue " Mount /dev/sr0 /mnt/dvd " the light on the DVD Writer starts to blink but then stops and I get the above message. I though maybe it being a cheap DVD writer had something to do with it but the cdrom is the same manufacturer as the Writer.
I disconnectd the cdrom and made the dvd writer the only device on the cable and I still cannot mount any media. I then hooked up the cdrom and I can mount disks on it, just not on the DVD writer. No matter how I try to mount the DVD writer I get "special device sr0 does not exist"
What is strange though is when I issue " Mount /dev/sr0 /mnt/dvd " the light on the DVD Writer starts to blink but then stops and I get the above message. I though maybe it being a cheap DVD writer had something to do with it but the cdrom is the same manufacturer as the Writer.
Looks like you already corrected the cable select, slave, master jumper issue. Try not to use cable select, it is not always bug free. First device / only device = master. Second device (on cable) = slave.
You have persistent udev rules for storage devices and ethernet devices. Remove these, poweroff, connect only the DVD Drive to the secondary ide controller, and set as master.
Code:
rm /etc/udev/rules.d/70-persistent-cd.rules
Poweron, and try to mount a PRESSED DVD and/or CD with the drive. Some drives are just junk And may have issues with burnt media.
Code:
mount /dev/sr0 /mnt/$SOMEWHERE
After issuing the mount command, check dmesg.
Also, there really is not a need for an fstab entry of optical drives if you are using KDE/Dolphin's auto mounter or Xfce/Thunar's. Currently these programs use HAL and DBUS to mount removable drives to the /media directory. Requires hal, message-bus, and D-Bus to be started and running, along with the user to be in the plug-dev group to function properly.
Ive tried everything mentioned with no luck, Heres the partial output of lshw -short ......
/0/100/2.5/0 /dev/sda disk 81GB Maxtor 6Y080L0
/0/100/2.5/0/1 /dev/sda1 volume 75GiB EXT4 volume
/0/100/2.5/0/2 /dev/sda2 volume 917MiB Extended partition
/0/100/2.5/0/2/5 /dev/sda5 volume 917MiB Linux swap / Solaris partition
/0/100/2.5/1 /dev/cdrom1 disk DVDRW SOHW-1633S
/0/100/2.5/0.1.0 /dev/cdrom disk CD-ROM LTN-5291S
/0/100/3 bus USB 1.1 Controller
Ive tried mount /dev/cdrom1 /media/dvd, /dev/sr0 /media/dvd, ETC... with the same outcome. "Device sr0 does not exist"
I start up k3b and the burning program that comes with Xubuntu and both programs see the burner, but they both say there is no disk in the burner, I have also tried two different brand disks in the burner. I did read somewere online about not using a 40 wire ide connector but dont understand that.
I just checked and even in the Xubuntu panel that shows mounted devices the DVD writer is there as:
/dev/dvdrw1 /media/dvd but it shows it not mounted.So I tried mount /dev/dvdrw1 /media/dvd and I still get Device sr0 does not exist.......
Distribution: openSuSE Tumbleweed-KDE, Mint 21, MX-21, Manjaro
Posts: 4,629
Rep:
Quote:
Originally Posted by M$ISBS
Ive tried everything mentioned with no luck...
No, you didn't. Please luck at my previous post.
And as stated above in post #5 by frankbellyou can't mount empty / unformatted disks.
Quote:
Originally Posted by M$ISBS
...I did read somewere online about not using a 40 wire ide connector but dont understand that.
The flattish (~2 inch) cable to your burner might either consist of 40 or of 80 parallel wires. The 80 wires variant is more resistant to signal interference. Ask you local dealer.
Quote:
Originally Posted by M$ISBS
... shows mounted devices the DVD writer is there as:
/dev/dvdrw1 /media/dvd but it shows it not mounted.So I tried mount /dev/dvdrw1 /media/dvd
See above.
Quote:
Originally Posted by M$ISBS
...and I still get Device sr0 does not exist.......
Distribution: openSuSE Tumbleweed-KDE, Mint 21, MX-21, Manjaro
Posts: 4,629
Rep:
Two things:
a) remove the jumper on the DVD to make it master / slave entirely and test again. (I once had a similar problem with a hard disk and got it solved in this way).
b) remove (# make comments of) the line(s) in your /etc/fstab pertaining to removable media and try again. (Udev should take care of any events then).
Excuse me butting in - Perhaps a technical explanation will help.
The read head on a cdr/cdrw drive has 3 adjustables sealed at manufacture to pass exact currents through laser diodes for the read. Setup is not trivial and requires fancy machinery. No repair house spends $10k to get kit to fix drives worth $20, so a repair option doesn't exist.
What is less commonly known is that the forward voltage across LEDs decreases with age. So the adjustments are put out of adjustment. Drives usually die slowly, developing mule-like symptoms before failing. This box I am currently using has such a failed cdrw drive in it atm - I'll buy another some day.
Try this: If the system sees the drive, put in a pressed cd (not cdr) and run
hdparm -tT /dev/sr0
If it runs, repeat it 4 or 5 times then try mounting. If that solves it, the drive is dying. If it doesn't, the drive is dead.
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