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Thread: cdrom not found

  1. #1

    Default cdrom not found

    Hi.
    Newbie for a couple of months now. Made the break from MS; totally.

    Running OpenSuse 11.4, desktop, KDE4, on a Toshiba NB500 netbook. Tried netbook style but disliked it so I run desktop style. Internet access is via wireless adaptor only. Ethernet access is not available where I live. One main issue is the external dvdrw.

    1) I have correctly identified the device as first boot device in the Bios and correctly saved settings.
    2) Following boot the computer displays the cd/dvd options, live and install as the case may be.
    3) whichever option I select-live or install-there is no further exchange to or from the external dvdrw.

    Subsequent error messages are similar irrespective of Linux OS types; i.e. No media file detected. No cdrom detected. Timed out, no device. (tried Ubuntu, Lubuntu, Mandriva, OpenSuse, Mint, PCLinuxOS, Knoppix. no luck in any of them).

    Note: The dvdrw is of course an external slimline cnm dvdrw.
    Also cannot write to dvdrw's, nor cdrw's, nor read from them, nor play music cd's, nor play film dvd's either. In fact I had to create the usb installer used to install OpenSuse to my netbook because I could not do so from a bona fide installation dvd.

    Soooooooooo......I am effectively stuck up a gum tree with a 'dormant' dvdrw.......

    If anyone knows how to resolve this then do please let me know. Many thanks.

  2. #2
    Join Date
    Nov 2010
    Location
    Ελλάδα(Αθήνα)-Россия (г. Красноярск)
    Posts
    1,711

    Default Απ: cdrom not found

    Go to yast-->software-->Check media and see if your system see your cd-rom.
    Πάντα Φιλικά, Στάμος.
    Desktop: openSUSE Leap 15.3||x86_64||Gnome 3.14 & KDE 5||AMD Ryzen 7 8 core||Nvidia GTX 1080 Ti Gaming Edition
    Γλώσσες Προγραμματισμού: C++, Qt developing.
    http://bit.ly/fT8Hfi

  3. #3

    Default Re: cdrom not found

    Silverghost29 wrote:
    > Newbie for a couple of months now. Made the break from MS; totally.


    Congratulations!

    > Running OpenSuse 11.4, desktop, KDE4, on a Toshiba NB500 netbook. Tried
    > netbook style but disliked it so I run desktop style. Internet access
    > is via wireless adaptor only. Ethernet access is not available where I
    > live. One main issue is the external dvdrw.


    It's not really relevant, but do you mean wi-fi or 3G phone-based.

    > 1) I have correctly identified the device as first boot device in the
    > Bios and correctly saved settings.
    > 2) Following boot the computer displays the cd/dvd options, live and
    > install as the case may be.
    > 3) whichever option I select-live or install-there is no further
    > exchange to or from the external dvdrw.


    It sounds like your hardware is capable of dealing with the drive but
    the linux kernel is not, for some reason, possibly because you need a
    newer kernel.

    So to help you we need to know as much as possible about your hardware.
    Please post the output, using CODE tags, of:

    dmesg
    lspci
    lsusb

    > Subsequent error messages are similar irrespective of Linux OS types;
    > i.e. No media file detected. No cdrom detected. Timed out, no device.
    > (tried Ubuntu, Lubuntu, Mandriva, OpenSuse, Mint, PCLinuxOS, Knoppix. no
    > luck in any of them).


    Did you use the latest version of Knoppix?

    > Note: The dvdrw is of course an external slimline cnm dvdrw.


    What is 'cnm'?

    > Also cannot write to dvdrw's, nor cdrw's, nor read from them, nor play
    > music cd's, nor play film dvd's either. In fact I had to create the
    > usb installer used to install OpenSuse to my netbook because I could not
    > do so from a bona fide installation dvd.


  4. #4

    Default Re: cdrom not found

    Quote Originally Posted by Silverghost29 View Post
    Hi.
    Newbie for a couple of months now. Made the break from MS; totally.

    Running OpenSuse 11.4, desktop, KDE4, on a Toshiba NB500 netbook. Tried netbook style but disliked it so I run desktop style. Internet access is via wireless adaptor only. Ethernet access is not available where I live. One main issue is the external dvdrw.

    1) I have correctly identified the device as first boot device in the Bios and correctly saved settings.
    2) Following boot the computer displays the cd/dvd options, live and install as the case may be.
    3) whichever option I select-live or install-there is no further exchange to or from the external dvdrw.

    Subsequent error messages are similar irrespective of Linux OS types; i.e. No media file detected. No cdrom detected. Timed out, no device. (tried Ubuntu, Lubuntu, Mandriva, OpenSuse, Mint, PCLinuxOS, Knoppix. no luck in any of them).

    Note: The dvdrw is of course an external slimline cnm dvdrw.
    Also cannot write to dvdrw's, nor cdrw's, nor read from them, nor play music cd's, nor play film dvd's either. In fact I had to create the usb installer used to install OpenSuse to my netbook because I could not do so from a bona fide installation dvd.

    Soooooooooo......I am effectively stuck up a gum tree with a 'dormant' dvdrw.......

    If anyone knows how to resolve this then do please let me know. Many thanks.
    Hi.

    Thanks. Weird because it does recognise the device as existing and notes it to be: HL-DT-ST DVDRAM GT20N
    Also details of mount point; '/dev/sr0'

    Did identify the dvd in the drive and verified it's content. But still no action when it comes to working! I have tried the dvdrw on a friends computer and it works fine, so it is not a case of it having developed a mechanical, electrical, or optical fault.

    Anyway.....I am sure whatever is the root cause will be identified and suitably resolved....hopefully sooner though.... ;-)

  5. #5

    Default Re: cdrom not found

    Hi.
    Thanks. I am loving having made the total change to Linux and expected a few issues, or glitches along the way, but it all goes to make a day...or week.....

    Apologies. CNM is the brand of dvdrw; as in CNM Lifestyle Electronics. Wifi adaptor. Not 3G nor other sim card MBB dongles. Ah, as regards Knoppix version the disc was lent by a friend who has had it back. I believe it was the most recent version he obtained via Linux Magazine. He lent the Mandriva Free dvd too. My OpenSuse dvd was from issue 144 Linux Format which I thought I would install and if liked it then buy the boxed set.

    Code tags? Ah.....just 'remind' me please....where would I 'find' those?

    Here are details gleaned from lspci, lsusb, dmesg. I have not included the full output from dmesg-just section re: dvd (or did you want the full output?).

    SilverGhost29 output lspci

    /sbin/lspci
    00:00.0 Host bridge: Intel Corporation N10 Family DMI Bridge
    00:02.0 VGA compatible controller: Intel Corporation N10 Family Integrated Graphics Controller
    00:02.1 Display controller: Intel Corporation N10 Family Integrated Graphics Controller
    00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
    00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02)
    00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 02)
    00:1c.2 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 3 (rev 02)
    00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 02)
    00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 02)
    00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 02)
    00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 02)
    00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 02)
    00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
    00:1f.0 ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 02)
    00:1f.2 SATA controller: Intel Corporation N10/ICH7 Family SATA AHCI Controller (rev 02)
    00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 02)
    07:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
    09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)


    SilverGhost29 output lsusb
    lsusb
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 002: ID 148f:2573 Ralink Technology, Corp. RT2501/RT2573 Wireless Adapter
    Bus 001 Device 003: ID 0bda:0138 Realtek Semiconductor Corp.
    Bus 001 Device 006: ID 04fc:0c25 Sunplus Technology Co., Ltd SATALink SPIF225A


    SilverGhost29 output dmesg

    [ 6450.440111] usb 1-5: new high speed USB device using ehci_hcd and address 6
    [ 6450.575637] usb 1-5: New USB device found, idVendor=04fc, idProduct=0c25
    [ 6450.575650] usb 1-5: New USB device strings: Mfr=2, Product=3, SerialNumber=1
    [ 6450.575662] usb 1-5: Product: USB to Serial-ATA bridge
    [ 6450.575670] usb 1-5: Manufacturer: Sunplus Technology Co.,Ltd.
    [ 6450.578670] usb 1-5: selecting invalid altsetting 1
    [ 6450.579203] scsi5 : usb-storage 1-5:1.0
    [ 6451.582086] scsi 5:0:0:0: CD-ROM HL-DT-ST DVDRAM GT20N CQ02 PQ: 0 ANSI: 0
    [ 6451.807296] sr0: scsi3-mmc drive: 62x/24x writer dvd-ram cd/rw xa/form2 cdda tray
    [ 6451.807310] cdrom: Uniform CD-ROM driver Revision: 3.20
    [ 6451.807846] sr 5:0:0:0: Attached scsi


    Also; the dvdrw is identified in media check, via Yast, as: HL-DT-ST DVDRAM GT20N /dev/sr0
    I did insert a dvd and it correctly identified the disc and verified the content.
    The device does still work, perfectly, when connected to a friend's computer...who, regrettably, is not using a Linux OS.....yet ;-)

    Regards.

  6. #6
    Join Date
    Aug 2008
    Location
    Brazil
    Posts
    3,234

    Default Re: cdrom not found

    Since it is an external drive, it might be a permission issue. Check out the /dev/sr0 permissions, see to what group it belongs (probably cdrom, the owner is always root), if the group has r/w permissions and add your user to the cdrom group, if it's not there already.

  7. #7

    Default Re: cdrom not found

    Hi.
    Thanks. It does say crdom and it is root. Nothing about rw that I can see.

    Couple of Linux users have suggested possible kernel configuration issue....seems a bit like my entering the "demilitarized zone" or even the "twilight zone" ;-) though I am sure it is not as bad as that.....maybe.....but I am learning a lot in the process !

  8. #8
    upscope NNTP User

    Default Re: cdrom not found

    Silverghost29 wrote:

    >
    > Hi.
    > Thanks. It does say crdom and it is root. Nothing about rw

    that I can
    > see.
    >
    > Couple of Linux users have suggested possible kernel

    configuration
    > issue....seems a bit like my entering the "demilitarized

    zone" or even
    > the "twilight zone" ;-) though I am sure it is not as

    bad as
    > that.....maybe.....but I am learning a lot in the process !
    >
    >

    You can use
    <code>
    ls -l /dev/sr0
    </code>

    should return something like
    <code>
    brw-rw----+ 1 root cdrom 11, 0 Apr 12 08:14 /dev/sr0
    </code>

    I have also found that it sometimes needs your user to be in
    the cdrom, video and audio groups.

    This can be done as root thru YaST -->Security and Users -->
    User and group Management.

    Hope this helps.


    --
    Russ
    openSUSE 11.4 MS1 (2.6.37.1-1.2-desktop)|Platform Version
    4.6.2 (4.6.2) "release 3"|Intel core2duo 2.5 MHZ,|8GB DDR3|
    GeForce 8400GS (NVIDIA-Linux-x86_64-270.18)

  9. #9

    Default Re: cdrom not found

    Thanks for the extra advice. Appreciated as always.
    I have tried that since and ensured it is in those groups too, but with the same negative result afterwards.
    Certainly a persistent issue but it wont put me off Linux. :-)

    As regards installing Linux OS's I can create live / install usb installers and install them that way. A bit disappointing I cannot try various Linux software direct from Linux publications cover dvd's but not the end of the World.

    Thanks again for the advice though. At least it was another avenue to try out. Much appreciated I assure you.

  10. #10

    Default Re: cdrom not found

    Hi.
    Thanks. I am loving having made the total change to Linux and expected a few issues, or glitches along the way, but it all goes to make a day...or week.....

    Apologies. CNM is the brand of dvdrw; as in CNM Lifestyle Electronics. Wifi adaptor. Not 3G nor other sim card MBB dongles. Ah, as regards Knoppix version the disc was lent by a friend who has had it back. I believe it was the most recent version he obtained via Linux Magazine. He lent the Mandriva Free dvd too. My OpenSuse dvd was from issue 144 Linux Format which I thought I would install and if liked it then buy the boxed set.

    Code tags? Ah.....just 'remind' me please....where would I 'find' those?

    Here are details gleaned from lspci, lsusb, dmesg. I have not included the full output from dmesg-just section re: dvd (or did you want the full output?).

    SilverGhost29 output lspci

    /sbin/lspci
    00:00.0 Host bridge: Intel Corporation N10 Family DMI Bridge
    00:02.0 VGA compatible controller: Intel Corporation N10 Family Integrated Graphics Controller
    00:02.1 Display controller: Intel Corporation N10 Family Integrated Graphics Controller
    00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
    00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02)
    00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 02)
    00:1c.2 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 3 (rev 02)
    00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 02)
    00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 02)
    00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 02)
    00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 02)
    00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 02)
    00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
    00:1f.0 ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 02)
    00:1f.2 SATA controller: Intel Corporation N10/ICH7 Family SATA AHCI Controller (rev 02)
    00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 02)
    07:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
    09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)


    SilverGhost29 output lsusb
    lsusb
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 002: ID 148f:2573 Ralink Technology, Corp. RT2501/RT2573 Wireless Adapter
    Bus 001 Device 003: ID 0bda:0138 Realtek Semiconductor Corp.
    Bus 001 Device 006: ID 04fc:0c25 Sunplus Technology Co., Ltd SATALink SPIF225A


    SilverGhost29 output dmesg

    [ 6450.440111] usb 1-5: new high speed USB device using ehci_hcd and address 6
    [ 6450.575637] usb 1-5: New USB device found, idVendor=04fc, idProduct=0c25
    [ 6450.575650] usb 1-5: New USB device strings: Mfr=2, Product=3, SerialNumber=1
    [ 6450.575662] usb 1-5: Product: USB to Serial-ATA bridge
    [ 6450.575670] usb 1-5: Manufacturer: Sunplus Technology Co.,Ltd.
    [ 6450.578670] usb 1-5: selecting invalid altsetting 1
    [ 6450.579203] scsi5 : usb-storage 1-5:1.0
    [ 6451.582086] scsi 5:0:0:0: CD-ROM HL-DT-ST DVDRAM GT20N CQ02 PQ: 0 ANSI: 0
    [ 6451.807296] sr0: scsi3-mmc drive: 62x/24x writer dvd-ram cd/rw xa/form2 cdda tray
    [ 6451.807310] cdrom: Uniform CD-ROM driver Revision: 3.20
    [ 6451.807846] sr 5:0:0:0: Attached scsi


    Also; the dvdrw is identified in media check, via Yast, as: HL-DT-ST DVDRAM GT20N /dev/sr0
    I did insert a dvd and it correctly identified the disc and verified the content.
    The device does still work, perfectly, when connected to a friend's computer...who, regrettably, is not using a Linux OS.....yet ;-)

    Regards.

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