[SOLVED] External optical drive mount problem

CollieJim · 04-17-2011, 11:41 PM

I didn't change anything. Honest...

Recently, as a normal user, I have been unable to mount an external DVD. I get the following:

Code:

mount: wrong fs type, bad option, bad superblock on /dev/sr1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

If I mount the disc as root, it works and I can read and copy the disc's contents.

Nothing is appearing in dmesg or messages.
Where do I look?

TIA
Jim

EDDY1 · 04-18-2011, 01:51 AM

This may help you even thogh it's for debian
http://wiki.debian.org/USBDrive
http://wiki.debian.org/USBDrive

CollieJim · 04-18-2011, 04:28 AM

I'm getting confused. The first time I tried mounting the disc as root with

Code:

mount /dev/sr1

it worked. Now I get the same error.

Code:

/dev/sr0	/mnt/cdrom	auto	users,rw,noauto,gid=19,umask=002   0 0
/dev/sr1	/mnt/tmp  	auto	users,rw,noauto,gid=19,umask=002   0 0

Now, as root:

Code:

mount /dev/sr0

fails with

Code:

mount: wrong fs type, bad option, bad superblock on /dev/sr1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

but

Code:

mount /dev/sr0 /mnt/cdrom

works. Why? Initially I thought it might be a permissions issue.

EDDY1 · 04-18-2011, 04:53 AM

Quote:

mount /dev/sr0 /mnt/cdrom

I would say because of mkdir command gave device new name, mount point & read write permissions.
It should auto mount though.

BTW is issue resolved if so mark as solved to help others.

CollieJim · 04-18-2011, 05:21 AM

No, not resolved yet. In the past I have not had to be root to mount a disc, and I should not have to now.

EDDY1 · 04-18-2011, 05:35 AM

Does an icon appear on desktop when you plug device in?
What OS is it gentoo?

EDDY1 · 04-18-2011, 05:41 AM

Even though mine is an internal drive the permissions are most likely similar
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto 0 0

EDDY1 · 04-18-2011, 05:54 AM

Is user part of audio group?
Also do you have usbmount?

CollieJim · 04-18-2011, 06:53 AM

gentoo
No icon, but device-notifier knows it's there. I click on it and select open with file manager. Dolphin shows an empty window.
Yes to audio group.
I don't see usbmount anywhere.

EDDY1 · 04-18-2011, 01:51 PM

What does dmesg say?

CollieJim · 04-19-2011, 07:05 AM

From plugging in the drive to after trying to mount the disc in it:

Code:

[ 1166.874345] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0008
[ 1166.874372] ehci_hcd 0000:00:1d.7: GetStatus port:3 status 001803 0  ACK POWER sig=j CSC CONNECT
[ 1166.874391] hub 1-0:1.0: port 3, status 0501, change 0001, 480 Mb/s
[ 1166.978086] hub 1-0:1.0: debounce: port 3: total 100ms stable 100ms status 0x501
[ 1167.029334] ehci_hcd 0000:00:1d.7: port 3 high speed
[ 1167.029352] ehci_hcd 0000:00:1d.7: GetStatus port:3 status 001005 0  ACK POWER sig=se0 PE CONNECT
[ 1167.080067] usb 1-3: new high speed USB device using ehci_hcd and address 8
[ 1169.834282] ehci_hcd 0000:00:1d.7: port 3 high speed
[ 1169.834299] ehci_hcd 0000:00:1d.7: GetStatus port:3 status 001005 0  ACK POWER sig=se0 PE CONNECT
[ 1169.897676] usb 1-3: default language 0x0409
[ 1169.898559] usb 1-3: udev 8, busnum 1, minor = 7
[ 1169.898569] usb 1-3: New USB device found, idVendor=152e, idProduct=1640
[ 1169.898578] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1169.898586] usb 1-3: Product: SuperMulti RW   
[ 1169.898592] usb 1-3: Manufacturer: HLDS Inc
[ 1169.898599] usb 1-3: SerialNumber: 00101016400068EA5
[ 1169.901798] usb 1-3: usb_probe_device
[ 1169.901811] usb 1-3: configuration #1 chosen from 1 choice
[ 1169.901942] usb 1-3: adding 1-3:1.0 (config #1, interface 0)
[ 1169.902118] usb-storage 1-3:1.0: usb_probe_interface
[ 1169.902137] usb-storage 1-3:1.0: usb_probe_interface - got id
[ 1169.905136] scsi8 : usb-storage 1-3:1.0
[ 1169.905673] drivers/usb/core/inode.c: creating file '008'
[ 1170.934187] scsi 8:0:0:0: CD-ROM            HL-DT-ST DVDRAM GP08NU20  1.00 PQ: 0 ANSI: 0
[ 1170.944923] sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[ 1170.944933] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 1170.945375] sr 8:0:0:0: Attached scsi CD-ROM sr0
[ 1170.945616] sr 8:0:0:0: Attached scsi generic sg3 type 5

EDDY1 · 04-19-2011, 11:26 AM

I think you have to list the type of fs for cdrom & link is sr0
This is what mine says in red.

Quote:

/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto 0 0

yours would most likely appear as

Quote:

/dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0

cdrom0 if it's the only cdrom

CollieJim · 04-20-2011, 06:59 AM

Finally!
Thanks EDDY1.

EDDY1 · 04-20-2011, 07:10 AM

You're welcome CollieJim