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installed a different dvdrom and can't enable it.

Asked by mistaboins

changed out my cdrom w/ a dvdrom and i can't enable it. comes back w/error code 32. can't read contents of the drive, can't mount etc., have checked and tried all the possibilities w/the jumpers, how can i re-detect and enable my cd/dvdrom drive? fstab says: /dev/scd0 /media/cdrom0 auto users,utf8,atime,auto,rw,dev,exec,suid 0 0.
what to try next?

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Tony Mugan (tmugan) said : 		#1

Hmm, if you disable the fstab entry and reboot what happens?

i.e. place a # before the relevant line for the CD mounting and see if the DVD drive gets detected automatically.

sudo gedit /etc/fstab

You could try loading the diskmounter applet for the toolbar by right-clicking on the top or bottom toolbar and choosing "Add to Panel". This APplet allows you to see what drives have been detected and can be manually mounted.

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mistaboins (mistaboins) said : 		#2

no, did not work, the device manager shows it , but i cannot enable it.it also seems to show my previous cdrom which i physically unplugged. of note: once i opened and closed the dvdrom door and it mounted! but just once and not again. i'm sure there is a simple fix, but i don't know what it is.

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marcobra (Marco Braida) (marcobra) said : 		#3

Can you check with dmesg command for errors or warning...

Please open a Terminal from the menu Applications->Accessories->Terminal and type:

dmesg

or better

dmesg | less

Hope this helps

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mistaboins (mistaboins) said : 		#4

dmesg tells me:
[ 27.321390] scsi 1:0:0:0: CD-ROM SAMSUNG CDRW/DVD SM-348B T502 PQ: 0 ANSI: 5
[ 27.335231] Driver 'sd' needs updating - please use bus_type methods
[ 27.335383] sd 0:0:0:0: [sda] 78165360 512-byte hardware sectors (40021 MB)
[ 27.335404] sd 0:0:0:0: [sda] Write Protect is off
[ 27.335408] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 27.335439] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 27.335509] sd 0:0:0:0: [sda] 78165360 512-byte hardware sectors (40021 MB)
[ 27.335527] sd 0:0:0:0: [sda] Write Protect is off
[ 27.335530] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 27.335559] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 27.335565] sda:<4>Driver 'sr' needs updating - please use bus_type methods
[ 27.349778] sda1 sda2 < sda5 >
[ 27.368539] sd 0:0:0:0: [sda] Attached SCSI disk
[ 27.368636] sd 0:0:1:0: [sdb] 80043264 512-byte hardware sectors (40982 MB)
[ 27.368657] sd 0:0:1:0: [sdb] Write Protect is off
[ 27.368661] sd 0:0:1:0: [sdb] Mode Sense: 00 3a 00 00
[ 27.368693] sd 0:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 27.368759] sd 0:0:1:0: [sdb] 80043264 512-byte hardware sectors (40982 MB)
[ 27.368776] sd 0:0:1:0: [sdb] Write Protect is off
[ 27.368780] sd 0:0:1:0: [sdb] Mode Sense: 00 3a 00 00
[ 27.368809] sd 0:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 27.368814] sdb:<6>usb 4-6: new high speed USB device using ehci_hcd and address 5
[ 27.403377] sdb1 sdb2 < sdb5 >
[ 27.433941] sd 0:0:1:0: [sdb] Attached SCSI disk
[ 27.448303] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 27.448334] sd 0:0:1:0: Attached scsi generic sg1 type 0
[ 27.448361] sr 1:0:0:0: Attached scsi generic sg2 type 5
[ 27.449637] sr0: scsi3-mmc drive: 12x/16x writer cd/rw xa/form2 cdda tray
[ 27.449645] Uniform CD-ROM driver Revision: 3.20
[ 27.449717] sr 1:0:0:0: Attached scsi CD-ROM sr0

dmesg | less tells me:

[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.24-19-generic (buildd@terranova) (gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)) #1 SMP Wed Aug 20 22:56:21 UTC 2008 (Ubuntu 2.6.24-19.41-generic)
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
[ 0.000000] BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 000000001f7fa000 (usable)
[ 0.000000] BIOS-e820: 000000001f7fa000 - 000000001f7fd000 (ACPI data)
[ 0.000000] BIOS-e820: 000000001f7fd000 - 000000001f7fe000 (ACPI NVS)
[ 0.000000] BIOS-e820: 000000001f7fe000 - 000000001f800000 (reserved)
[ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
[ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
[ 0.000000] BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
[ 0.000000] 0MB HIGHMEM available.
[ 0.000000] 503MB LOWMEM available.
[ 0.000000] Entering add_active_range(0, 0, 129018) 0 entries of 256 used
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0 -> 4096
[ 0.000000] Normal 4096 -> 129018
[ 0.000000] HighMem 129018 -> 129018

what does all this mean?

Revision history for this message
marcobra (Marco Braida) (marcobra) said : 		#5

This are not errors, are usual boot messages from the system... ignore them...
You must try to find errors or warning at the end of dmesg when you play with cd...

You might see the /var/log/syslog to find errors or warning messages

From a terminal to see it in real time.. type:

tail -F /var/log/syslog

stop view the syslog with CTRL+C

Hope tih help

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