Need to install
 

While trying to read a CD I received the following error message:
----------------
Cannot mount volume
Invalid mount option when attempting to
mount the volume 'UDF Volume'
-------------- I am running: --------------
A Dell, Studio 1535, Laptop

Ubuntu
Release 8.04 (hardy)
Kernel Linux 2.6.24-16 generic
Gnome 2.22.1

Hardware
Memory 3.5 GiB
Processor 0: Intel(R) Core(TM)2 Duo CPU T5750 @ 2 GHz
Processor 1: Intel(R) Core(TM)2 Duo CPU T5750 @ 2 GHz

System Status
Available disk space 202.4 GiB

--------------- Questions --------------
What do I need to do to be able to read this disk?
--
Is there some additional assessment I need to make to further define the problem?
--
My first guess is that I should let Synaptic Package Manager install some UDF package.
A. What package?
B. Is there a way to determine in advance how big that package will be? --- Because I only have dial-up here on the ozark plateau, and I will have to go somewhere where I can get a wireless connection if I have to download a sizeable package.

Try some of the things mentioned here: How to mount UDF DVDs in Ubuntu

Make sure you read the feedbacks as some solutions are given there.

No download required :)

That did not work
 

Thanks Nexus, but nothing there worked. I got exactly the same response.

Judging from the dates on all those posts, I wonder if my version of Ubuntu hasn't already fixed that.

The information there was for getting UDF DVD's to load. I have never had a lick of trouble loading DVD's.

The CD that generaed this problem is a 700 MB Sony CD-R data CD. Its data reportedly came from a "jump drive" and I don't know how the data was transferred to the CD, other than it was done on a computer running a fairly recent version of Windows.

I am open to suggestions as to how to check the integrity of the CD

Although DVD are mentioned, it also applies to CDR media.

Did you try it this way round? Give the above a try. If it doesn't work, open a terminal and type: dmesg and post the output to this thread. Please only post the part(s) relevant to the cdrom, it should be the last few entries of dmesg.

Thanks again Nexus, I tried it that way and it made no difference.
Because there is no mechanical eject, in order to get the disk out I have to go to the menu choice /places/computer
The window that pops up displays icons labeled "install","UDF Volume",and "Filesystem". The Icon for UDF Volume shows a CD sticking out of a drive.
righht clicking on that allows me to select eject from a menu after which the icon remains the same but the icon label changes to CD-RW/DVD+-RW Drive.
So Apparantly the operating system and drive are recognizing this as a UDF CD, however the error message said:
"Cannot Mount Volume
Invalid mount option when attempting to
mount the volume 'UDF Volume'."
I am suspicious that it is simply a case of a bad CD, it would help if I knew what a "mount option" was.

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

The relevant portion of the output of the dmsg command appears to be:

[ 77.678623] PPP generic driver version 2.4.2
[ 87.607469] UDF-fs: No partition found (1)
[ 87.634900] ISOFS: Unable to identify CD-ROM format.
[ 94.056751] PPP BSD Compression module registered
[ 94.144889] PPP Deflate Compression module registered
[ 237.992850] UDF-fs: No partition found (1)
[ 238.046716] ISOFS: Unable to identify CD-ROM format.

And this represents two attempts to mount the CD.

So my newbie impression is that
a.-- the drive recognized it was a UDF format
b.-- The drive could not find a partition in UDF format
c.-- The drive attempted to look at it as an ISO format and found nothing identifiable under that format.

Looking at the data surface of the CD shows a zone


So do you think I just have a bad disk ???

Hmmm. I just examined the disk surface and realized that the disk does not seem to show any of the usual altered appearance where data has been written, This increases my suspicision that the disk has just enough written on it to mark it as a UDF disk but no data. What do you think?

It's quite possible the disc is corrupt. Do you have access to a winblows machine? They apparently have no problems reading udf format. If it works on that machine then the problem of Ubuntu randomly reading udf discs still exists.