CD\DVD-RW Writting Problem (Newbee)

Chris Taylor chris.j.taylor at
Thu Jun 11 10:18:55 UTC 2009

On Wed, 10 Jun 2009 19:13:56 -0700, NoOp wrote:

> On 06/10/2009 03:14 AM, Chris Taylor wrote:
>> HI can anyone help me please I'm new to linux please be very simple in
>> answers
>> I have just upgrade to  "Ubuntu 9.04 - the Jaunty Jackalope - released
>> in April 2009."
>> I have K3B Brasero Disk Burner installed but I can't write to the
>> CD/DVD- RW. I believe it is a permission setting but but know where to
>> find to fix
>> Please if you would be so kind to help
> Try (using a terminal - Applications|Accessories|Terminal:
> $ sudo k3b
> You will get errors to the effect:
> Running K3b as root user
> It is not recommended to run K3b under the root user account. This
> introduces unnecessary security risks. Solution: Run K3b from a proper
> user account and setup the device and external tool permissions
> appropriately.
> and terminal errors. But given the issues listed in
> it's worth a try.
> This might also be of interest:
> <
> Try a different speed, and/or media, update the firmware?
chris at chris-desktop:~$ sudo k3b
[sudo] password for chris: 
kbuildsycoca running...
Error: "/var/tmp/kdecache-chris" is owned by uid 1000 instead of uid 0.
Error: "/var/tmp/kdecache-chris" is owned by uid 1000 instead of uid 0.
Error: "/var/tmp/kdecache-chris" is owned by uid 1000 instead of uid 0.
chris at chris-desktop:~$ (K3bDevice::HalConnection) initializing HAL >= 0.5
Mapping udi /org/freedesktop/Hal/devices/storage_model_RW_DVD_GCC_4521B 
to device /dev/sr0
/dev/sr0 resolved to /dev/sr0
/dev/sr0 is block device (0)
/dev/sr0 seems to be cdrom
bus: 1, id: 0, lun: 0
(K3bDevice::Device) /dev/sr0: init()
(K3bDevice::Device) /dev/sr0 feature: CD Mastering
(K3bDevice::Device) /dev/sr0 feature: CD Track At Once
(K3bDevice::Device) /dev/sr0 feature: DVD+R
(K3bDevice::Device) /dev/sr0 feature: DVD+RW
(K3bDevice::Device) /dev/sr0 unknown profile: 2
(K3bDevice::Device) /dev/sr0: dataLen: 60
(K3bDevice::Device) /dev/sr0: checking for TAO
(K3bDevice::Device) /dev/sr0: checking for SAO
(K3bDevice::Device) /dev/sr0: checking for SAO_R96P
(K3bDevice::Device) /dev/sr0: checking for SAO_R96R
(K3bDevice::Device) /dev/sr0: checking for RAW_R16
(K3bDevice::Device) /dev/sr0: checking for RAW_R96P
(K3bDevice::Device) /dev/sr0: checking for RAW_R96R
(K3bDevice::ScsiCommand) failed: 
                           command:    GET PERFORMANCE (ac)
                           errorcode:  70
                           sense key:  NOT READY (2)
                           asc:        3a
                           ascq:       0
(K3bDevice::Device) /dev/sr0: GET PERFORMANCE length det failed.
(K3bDevice::Device) /dev/sr0:  Number of supported write speeds via 2A: 0
(K3bDevice::DeviceManager) setting current write speed of device /dev/sr0 
to 0
/dev/scd0 resolved to /dev/sr0
(K3bDevice::DeviceManager) dev /dev/sr0 already found
/dev/sr0 resolved to /dev/sr0
(K3bDevice::DeviceManager) dev /dev/sr0 already found
(K3bDevice::DeviceManager) found config entry for devicetype: HL-DT-ST RW/
Blockdevice:    /dev/sr0
Generic device: 
Vendor:         HL-DT-ST
Description:    RW/DVD GCC-4521B
Version:        1.01
Write speed:    5634
Profiles:       DVD-ROM, CD-ROM, CD-R, CD-RW
Read Cap:       DVD-ROM, DVD+RW, DVD+R, CD-ROM, CD-R, CD-RW
Write Cap:      CD-R, CD-RW
Writing modes:  SAO, TAO, RAW, SAO/R96P, SAO/R96R, RAW/R16, RAW/R96P, RAW/
Reader aliases: /dev/sr0, /dev/scd0
Error: "/var/tmp/kdecache-chris" is owned by uid 1000 instead of uid 0.

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