[SOLVED] CD/DVD drive not accessible

Madnoys · 06-13-2011, 03:44 PM

I am a complete Linux/Ubuntu Noob and researched the issue and came up with nothing. I cannot figure out how to access my CD/DVD drive. Places >> Computer shows nothing and neither do any of the sub components. I don't know enough about the console to try to access the drive from there. Every time a user gets close to a solution (to my knowledge), contributors stop replying and the years roll on. Is there a solution?

I have tried:

Code:

eyesonyou@ubuntu:/dev$ dir cd*
	cdrom  cdrw

	eyesonyou@ubuntu:/$ cdrom@
	cdrom@: command not found
	eyesonyou@ubuntu:/$ cdrom@ cdrw@
	cdrom@: command not found

	eyesonyou@ubuntu:/$ ls
	bin    dev   host        lost+found  opt   sbin     sys  var
	boot   etc   initrd.img  media       proc  selinux  tmp  vmlinuz
	cdrom  home  lib         mnt         root  srv      usr

	eyesonyou@ubuntu:/$ ls cd*

	eyesonyou@ubuntu:/$ cd dev

	eyesonyou@ubuntu:/dev$ ls cd*
	cdrom  cdrw

	eyesonyou@ubuntu:/$ ls /dev/cd* /dev/sr*
	/dev/cdrom  /dev/cdrw  /dev/sr0

Pushed the eject button: The tray opens

Push the tray back in: It spins, spins faster, and then stops.

eyesonyou@ubuntu:/$ sudo eject: The cdrom ejects properly

CD/DVD drive is not fried and does work

Code:

eyesonyou@ubuntu:/$ hwinfo --cd
> hal.1: read hal dataprocess 5849: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file dbus-errors.c line 280.
This is normally a bug in some application using the D-Bus library.
libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files
25: SCSI 100.0: 10602 CD-ROM (CD-R)                             
  [Created at block.247]
  Unique ID: KD9E.XunsalyGZY6
  Parent ID: Eu86.K_pBSd__yJ1
  SysFS ID: /class/block/sr0
  SysFS BusID: 1:0:0:0
  SysFS Device Link: /devices/pci0000:00/0000:00:14.1/host1/target1:0:0/1:0:0:0
  Hardware Class: cdrom
  Model: "MATSHITA UJ-840D"
  Vendor: "MATSHITA"
  Device: "UJ-840D"
  Revision: "1.02"
  Driver: "pata_atiixp", "sr"
  Driver Modules: "pata_atiixp"
  Device File: /dev/sr0 (/dev/sg1)
  Device Files: /dev/sr0, /dev/scd0, /dev/disk/by-id/ata-MATSHITAUJ-840D, /dev/disk/by-path/pci-0000:00:14.1-scsi-1:0:0:0, /dev/disk/by-label/100831_0139, /dev/cdrom, /dev/cdrw, /dev/dvd, /dev/dvdrw
  Device Number: block 11:0 (char 21:1)
  Features: CD-R
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #8 (IDE interface)
  Drive Speed: 62
  Volume ID: "100831_0139"
  Creation date: "2010083106390317"

Babbling past this point:

Code:

eyesonyou@ubuntu:/var/log$ dir messages
	dir: cannot access messages: No such file or directory

	eyesonyou@ubuntu:/dev$ dir
	autofs		 mem		     sda2      tty26  tty59	 ttyS4
	block		 net		     sda5      tty27  tty6	 ttyS5
	bsg		 network_latency     sda6      tty28  tty60	 ttyS6
	btrfs-control	 network_throughput  sda7      tty29  tty61	 ttyS7
	bus		 null		     sdb       tty3   tty62	 ttyS8
	cdrom		 oldmem		     sdb1      tty30  tty63	 ttyS9
	cdrw		 pktcdvd	     sg0       tty31  tty7	 uinput
	char		 port		     sg1       tty32  tty8	 urandom
	console		 ppp		     sg2       tty33  tty9	 usbmon0
	core		 psaux		     shm       tty34  ttyprintk  usbmon1
	cpu		 ptmx		     snapshot  tty35  ttyS0	 usbmon2
	cpu_dma_latency  pts		     snd       tty36  ttyS1	 usbmon3
	disk		 ram0		     sr0       tty37  ttyS10	 vcs
	dri		 ram1		     stderr    tty38  ttyS11	 vcs1
	dvd		 ram10		     stdin     tty39  ttyS12	 vcs2
	dvdrw		 ram11		     stdout    tty4   ttyS13	 vcs3
	ecryptfs	 ram12		     tty       tty40  ttyS14	 vcs4
	fb0		 ram13		     tty0      tty41  ttyS15	 vcs5
	fd		 ram14		     tty1      tty42  ttyS16	 vcs6
	full		 ram15		     tty10     tty43  ttyS17	 vcs7
	fuse		 ram2		     tty11     tty44  ttyS18	 vcs8
	hidraw0		 ram3		     tty12     tty45  ttyS19	 vcsa
	hpet		 ram4		     tty13     tty46  ttyS2	 vcsa1
	input		 ram5		     tty14     tty47  ttyS20	 vcsa2
	kmsg		 ram6		     tty15     tty48  ttyS21	 vcsa3
	log		 ram7		     tty16     tty49  ttyS22	 vcsa4
	loop0		 ram8		     tty17     tty5   ttyS23	 vcsa5
	loop1		 ram9		     tty18     tty50  ttyS24	 vcsa6
	loop2		 random		     tty19     tty51  ttyS25	 vcsa7
	loop3		 rfkill		     tty2      tty52  ttyS26	 vcsa8
	loop4		 root		     tty20     tty53  ttyS27	 vga_arbiter
	loop5		 rtc		     tty21     tty54  ttyS28	 zero
	loop6		 rtc0		     tty22     tty55  ttyS29
	loop7		 scd0		     tty23     tty56  ttyS3
	mapper		 sda		     tty24     tty57  ttyS30
	mcelog		 sda1		     tty25     tty58  ttyS31
	eyesonyou@ubuntu:/dev$ eject dvdrw //successful eject
	eyesonyou@ubuntu:/dev$ eject cdrom //successful eject
	eyesonyou@ubuntu:/dev$ eject dvd //successful eject
	eyesonyou@ubuntu:/dev$ eject cdrw //successful eject
 
	eyesonyou@ubuntu:/$ /etc/fstab
	bash: /etc/fstab: Permission denied
	eyesonyou@ubuntu:/$ cd etc
	eyesonyou@ubuntu:/etc$ fstab
	fstab: command not found
	eyesonyou@ubuntu:/etc$ dir fs*
	fstab

	eyesonyou@ubuntu:/$ uname -a
	Linux ubuntu 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 
		2011 i686 athlon i386 GNU/Linux

	eyesonyou@ubuntu:/$ uname -m
	i686

Code:

eyesonyou@ubuntu:/$ /sbin/lspci
bash: /sbin/lspci: No such file or directory
eyesonyou@ubuntu:/$ cd sbin
eyesonyou@ubuntu:/sbin$ lspci
00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge
00:01.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:04.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller
00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 10)
00:14.1 IDE interface: ATI Technologies Inc IXP SB400 IDE Controller
00:14.3 ISA bridge: ATI Technologies Inc IXP SB400 PCI-ISA Bridge
00:14.4 PCI bridge: ATI Technologies Inc IXP SB400 PCI-PCI Bridge
00:14.5 Multimedia audio controller: ATI Technologies Inc IXP SB400 AC'97 Audio Controller (rev 01)
00:14.6 Modem: ATI Technologies Inc SB400 AC'97 Modem Controller (rev 01)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon XPRESS 200M 5955 (PCIE)
03:00.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link)
03:02.0 Network controller: Broadcom Corporation BCM4306 802.11b/g Wireless LAN Controller (rev 03)
03:04.0 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller
03:04.3 Mass storage controller: Texas Instruments PCIxx21 Integrated FlashMedia Controller
03:04.4 SD Host controller: Texas Instruments PCI6411/6421/6611/6621/7411/7421/7611/7621 Secure Digital Controller
03:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)

------------------------------------------------------------

eyesonyou@ubuntu:/sbin$ uname -r
2.6.38-8-generic

---------------------------------------------------------------

T3RM1NVT0R · 06-13-2011, 04:16 PM

Hi there,

Welcome to LQ!!!

As I can see you are logged in as regular user. $ prompt denotes that you are logged in as normal user. If you want to perform administrative task you have to use sudo before typing any command.

As I can understand you are trying to access CDROM from command line. You can use the following command for that:

sudo mount cdrom /media

This will mount cdrom contents to /media folder

Once the above is done you can browse the CD by going in /media , use the following command for that:

cd /media

and then do ls

It should display the content list of cdrom.

Also I can see from the output you pasted you were trying to edit/see /etc/fstab and it replied saying bash: /etc/fstab: Permission denied that is because you have to use either vi or vim to edit a file or to see a file you can do sudo cat /etc/fstab.

You should not make any modification to any important system file like /etc/fstab without making a backup and without knowing what you are doing as that might make the system crash/not bootable so be careful while doing that.

I hope this helps.

Madnoys · 06-13-2011, 04:24 PM

Thank you for the tips, warnings, and facts. I'm trying to access the cdrom either in the OS or console.

Code:

eyesonyou@ubuntu:/$ sudo mount cdrom /media
[sudo] password for eyesonyou: 
mount: /cdrom is not a block device

T3RM1NVT0R · 06-13-2011, 04:32 PM

You're welcome

Try this:

sudo mount /dev/cdrom /media

Madnoys · 06-13-2011, 04:38 PM

Bingo!! Thanks

Code:

eyesonyou@ubuntu:/$ sudo mount /dev/cdrom /media
mount: block device /dev/sr0 is write-protected, mounting read-only
eyesonyou@ubuntu:/$ 
eyesonyou@ubuntu:/$ cd /media
eyesonyou@ubuntu:/media$ dir

...and out pops the files!

Then I navigated in the OS to "File System" >> "media" and the files where there too. Case close. Good Job!

T3RM1NVT0R · 06-13-2011, 04:39 PM

Great!!! Good to hear that. Enjoy Linux :-)

Sjonnie48 · 06-13-2011, 04:48 PM

A simple question: from which release is your ubuntu (10.04 ... or newer), and is it 32-bit or 64-bit.
I am asking this because I have had this issue with ubuntu 10.04 64-bit version.
It was unpredictable when the cdrom would be available, usually every 4 to 6 reboots ...
Although the computer was brand new I started to suspect my hardware.
But after installing the 32-bit version the problem vanished and has never occured anymore.
And I lived long and happily after!

Madnoys · 06-14-2011, 12:47 AM

[This post has been previously solved]

I have Ubuntu 11.04 / 32 bit