Latest working kernel version:2.6.24-17-generic (buildd@palmer) (gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)) #1 SMP Thu May 1 14:31:33 UTC 2008 Earliest failing kernel version: Unknown but see Ubuntu bug # 44233 - over 1 year old. The Ubuntu bug report indicates that it is not only Ubuntu, but also Mandrake and other distros and suggests that there may be a problem of hardware compatibility, or that there may be a problem with disks written by Nero. Distribution: Ubuntu Hardware Environment: Fujitsu Siemens Amilo AM 1451 Laptop with DVD+ -RW ND6650A Software Environment: Linux only as above. No other O/S Problem Description: UDF formatted CD fails. Oops pop-up error message: Cannot mount volume. Invalid mount option when attempting to mount the volume 'UDF Volume' Output from manual mount:Output from manual mount:- (both fstabs) $ sudo mount -t udf /dev/scd0/ /media/cdrom0 mount: block device /dev/scd0 is write-protected, mounting read-only mount: wrong fs type, bad option, bad superblock on /dev/scd0, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so var/log/messages content (dates/kernel name suppressed): : [ 541.830994] end_request: I/O error, dev sr0, sector 1280 : [ 541.831005] printk: 1 messages suppressed. : [ 543.069592] end_request: I/O error, dev sr0, sector 1280 : [ 543.755001] end_request: I/O error, dev sr0, sector 1416 : [ 544.179947] end_request: I/O error, dev sr0, sector 1416 : [ 544.719083] end_request: I/O error, dev sr0, sector 1416 : [ 545.144203] end_request: I/O error, dev sr0, sector 1416 : [ 545.569510] end_request: I/O error, dev sr0, sector 1416 : [ 546.084657] end_request: I/O error, dev sr0, sector 1416 : [ 546.509546] end_request: I/O error, dev sr0, sector 1416 : [ 547.283114] end_request: I/O error, dev sr0, sector 1416 : [ 547.708273] end_request: I/O error, dev sr0, sector 1416 : [ 549.509757] UDF-fs: No fileset found fstab contents: # /etc/fstab: static file system information. # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0 # /dev/sda1 UUID=b836ff7f-f409-4842-8d19-503734d0d00a / ext3 defaults,errors=remount-ro 0 1 # /dev/sda2 UUID=18d1c699-9e50-4447-b8ff-c0178d36fe5a none swap sw 0 0 /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0 Replacing cdrom user entry with "iso9660,udf user" or with "auto user" made no difference at all. ISO9660 disks mount perfectly, UDF does not. The UDF disk mounts perfectly in a Windows XP machine. Steps to reproduce: Place UDF formatted CD in drive and try to mount.
I have the same issue with Kernel 2.6.25.4-30.fc9.i686 from Fedora.