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#1 2008-08-05 03:52:31

user1100100
Member
Registered: 2007-11-02
Posts: 13

Cannot mount cd/dvd media.

I know this subject comes up quite a bit.
Before posting, I tried searching other posts regarding this for a solution, but I haven't made progress so far.

When I su to root, I can burn a cd using mkisofs & cdrecord in a terminal.
But when I try to mount and play what I just burned, it does not work.
I tested the burned cd on another computer and the .avi file played fine on Windows, so the burn worked.

I cannot rip dvd's because I cannot mount the dvd media.

So, I'm must be missing something simple and fundamental because neither type of media can be mounted.

This is what I know so far about my setup:

1.  I used this in my /etc/fstab as a result of dmesg results --

/dev/sr0         /media/dvd         udf         auto,user,rw  0   0
/dev/sr0       /media/cdrom       iso9660     auto,user,rw  0   0

2.  Results of cdrecord and/or wodim -scanbus ---

bash-3.2# wodim -scanbus
scsibus0:
        0,0,0     0) '_NEC    ' 'DVD_RW ND-3520A ' '1.04' Removable CD-ROM
        0,1,0     1) *
        0,2,0     2) *

3.  Here's how my device reports in dmesg ---

ata1.00: ATAPI: _NEC DVD_RW ND-3520A, 1.04, max UDMA/33
ata1.00: configured for UDMA/33

scsi 0:0:0:0: CD-ROM            _NEC     DVD_RW ND-3520A  1.04 PQ: 0 ANSI: 5

Driver 'sr' needs updating - please use bus_type methods
sr0: scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 0:0:0:0: Attached scsi CD-ROM sr0

I am using the stock kernel that came with the latest official core release of Arch Linux.

Thank you for reading.  All suggestions are welcome and appreciated.

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#2 2008-08-06 05:48:05

user1100100
Member
Registered: 2007-11-02
Posts: 13

Re: Cannot mount cd/dvd media.

[SOLVED]

No idea why it's working now.
So far, I have success with the following as root user:

bash-3.2# mount -t iso9660 /dev/sr0 /media/cdrom
mount: block device /dev/sr0 is write-protected, mounting read-only

and

bash-3.2# mount -t udf /dev/sr0 /media/dvd
mount: block device /dev/sr0 is write-protected, mounting read-only


It's getting way too late now......will try tomorrow putting "user" under video and optical in /etc/group and see if a user can mount media. I should be able to once I put "user" in my /etc/fstab but I'll have to do more reading.

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#3 2008-08-06 12:19:07

scarecrow
Member
From: Greece
Registered: 2004-11-18
Posts: 715

Re: Cannot mount cd/dvd media.

The user in mind does have to belong to the optical group to mount/umount CD-ROM stuff... it's not just for burning.


Microshaft delenda est

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