does not detect DVD-RW file system

Bug #493290 reported by David Balažic on 2009-12-06
This bug report is a duplicate of:  Bug #554433: [LUCID] cd/dvd not recognized. Edit Remove
This bug affects 3 people
Affects Status Importance Assigned to Milestone
devicekit-disks (Ubuntu)

Bug Description

Binary package hint: nautilus

I did this:
 - boot Ubuntu Live CD 9.10 amd 64 desktop (it is actually on an USB stick, not a CD)
 - open menu Places / Computer

confirm that the CD/DVD units icon is there

Insert a DVD+RW.

The mentioned icon disappears.

No messages. Also I found no relevant messages in /var/log/*

Brasero also claims, there is no medium inserted.

ProblemType: Bug
Architecture: amd64
Date: Sun Dec 6 20:30:52 2009
DistroRelease: Ubuntu 9.10
LiveMediaBuild: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
Package: nautilus 1:2.28.1-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: nautilus
Uname: Linux 2.6.31-14-generic x86_64

David Balažic (xerces8) wrote :
David Balažic (xerces8) wrote :

Here I attach the output of brasero -g &> brasero-g.txt

David Balažic (xerces8) wrote :

And here is brasero --brasero-burn-debug --brasero-media-debug &> brasero-debug2.txt

David Balažic (xerces8) wrote :

And here is the image of the DVD in question.
Created as :
gzip < /dev/dvd > dvd.img.gz
gzip -dc dvd.img.gz | bzip2 -9 > dvd.img.bz2

(recoded to bz2 as it is much smaller)

The creation gave a read error about 1.5 GB into the file, which is also the final size of the (uncompressed) image.

Sebastien Bacher (seb128) wrote :

Thank you for your bug report, could you run "gvfs-mount -lio", add the CD in the drive and add the log there? Could you also get a "devkit-disks --dump >log" before and after inserting the CD in the drive and add log to the bug?

Changed in nautilus (Ubuntu):
assignee: nobody → Ubuntu Desktop Bugs (desktop-bugs)
importance: Undecided → Low
status: New → Incomplete
David Balažic (xerces8) wrote :
David Balažic (xerces8) wrote :
David Balažic (xerces8) wrote :
David Balažic (xerces8) wrote :

The requested logs... before and after insertion.

Changed in nautilus (Ubuntu):
status: Incomplete → New
Sebastien Bacher (seb128) wrote :

Thanks, interesting the devicekit-disks log seems correct but gvfs doesn't list the media just inserted...

affects: nautilus (Ubuntu) → gvfs (Ubuntu)
WeatherGod (ben-v-root) wrote :

This might be similar to bug 478962. While triaging it, we have noticed that gvfs drops the cd drive after insertion of a CD. Further tests are difficult in that report due to limited technical abilities of the reporter.

I'm having this problem as well.

The dvd is actually mountable even though the icon disappears from nautilus. It can be manually mounted (for me) by doing:

sudo mount /dev/sr0 /media/cdrom0

Results of gvfs-mount -lio are attached

After I insert the media, the gvfs-mount shows the attached log.

This doesn't happen with every dvd... I have a home-burnt cd that it happens regularly on however.

Martin Pitt (pitti) wrote :

I don't think gvfs is to blame here. devkit-disks does not see any file system on the CD:


which will cause gvfs to think that there is nothing to mount (which is correct -- there isn't something to mount).

After inserting that DVD, can you please open a Teminal and copy&paste the output of those commands:

  sudo blkid -p -o udev /dev/sr0
  sudo mount /dev/sr0 /mnt
  sudo umount /dev/sr0


affects: gvfs (Ubuntu) → devicekit-disks (Ubuntu)
Changed in devicekit-disks (Ubuntu):
assignee: Ubuntu Desktop Bugs (desktop-bugs) → nobody
status: New → Incomplete
summary: - CD icon disappears in File browser
+ does not detect DVD-RW file system
Martin Pitt (pitti) wrote :

Also, any chance someone could try that on lucid beta-1 or beta-2? If you write the image on an USB stick and boot from that, you have the CD drive free for experimenting, and thus you don't need to upgrade your 9.10 installation just yet.

So of course tonight this is working no matter what I do. Figures! Such slippery suckers...

I am running on the current lucid beta with all packages updated. Behaviour has potentially changed in some of the recent releases perhaps.. I'll keep an eye out over the next week and see if it reoccurs.

Martin Pitt (pitti) wrote :

Philip, were you previously testing on lucid beta as well, or on karmic? Between karmic and lucid a lot of fixes and changes were done to the udev/udisks stack.

Hi Martin,

This was all under lucid beta, so the fix has happened in the last 2-3 days at most in my opinion :)

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