DVD doesn't mount, but writing works fine.

[Kim Lux]

I think the problem is that the previous disk hasn't unmounted
correctly. 

If I do a "unmount" via a right click on the desktop icon, I get a busy
error.  I get the same doing it from the command line.  However, I can
get it to unmount without errors by doing a "umount -l /dev/hdc".  I am
wondering if the problem isn't that there is multiple references to the
drive, ie /media/cdrecorder and /dev/hdc.   




On Mon, 2005-10-17 at 17:41 -0600, Kim Lux wrote:
> I installed 2.6.13-1.1526_FC4smp and got it to mount and read ONCE.  I
> can't get it to work again.  This is a very frustrating problem. 
> 
> 
> On Mon, 2005-10-17 at 16:27 -0600, Kim Lux wrote: 
> > I'm not the only one with this problem.
> > http://ubuntuforums.org/archive/index.php/t-29396.html
> > 
> > I'm posting this stuff here in case someone else has the problem.  If
> > someone has a solution, I am listening. 
> > 
> > My setup:
> > 
> > Linux xxxx 2.6.12-1.1456_FC4smp #1 SMP Thu Sep 22 02:22:14 EDT 2005 i686
> > i686 i386 GNU/Linux
> > 
> > 
> > 
> > 
> > On Mon, 2005-10-17 at 16:20 -0600, Kim Lux wrote:
> > > Syslog reveals the following, for multiple mount attempts. (Real machine
> > > name replaced with xxxx.) 
> > > 
> > > Oct 17 16:18:19 xxxx kernel: attempt to access beyond end of device
> > > Oct 17 16:18:19 xxxx kernel: hdc: rw=0, want=68, limit=4
> > > Oct 17 16:18:19 xxxx kernel: isofs_fill_super: bread failed, dev=hdc,
> > > iso_blknum=16, block=16
> > > Oct 17 16:18:25 xxxx kernel: attempt to access beyond end of device
> > > Oct 17 16:18:25 xxxx kernel: hdc: rw=0, want=72, limit=4
> > > Oct 17 16:18:25 xxxx kernel: attempt to access beyond end of device
> > > Oct 17 16:18:25 xxxx kernel: hdc: rw=0, want=128, limit=4
> > > 
> > > 
> > > 
> > > On Mon, 2005-10-17 at 15:44 -0600, Kim Lux wrote:
> > > > I'm running FC4 with all the updates.  Generally it works great.  I can
> > > > write DVDs without errors using K3B.
> > > > 
> > > > However, I can't mount a DVD for reading.  Selecting "Mount" on the "CD
> > > > Recorder" icon on the desktop yields:
> > > > 
> > > > "mount: I could not determine the filesystem type, and none was
> > > > specified Please check that the disk is entered correctly." 
> > > > 
> > > > I've tried this with both a Rocky Ridge and Joliet formated DVDs as well
> > > > as a 3rd party commercial DVD. 
> > > > 
> > > > Double clicking the "CD Recorder" icon yields:
> > > > 
> > > > Could not mount device.
> > > > The reported error was:
> > > > mount: I could not determine the filesystem type, and none was specified
> > > > 
> > > > Doing it manually:
> > > > 
> > > > mount /dev/hdc -tjfs tmp
> > > > mount: block device /dev/hdc is write-protected, mounting read-only
> > > > mount: wrong fs type, bad option, bad superblock on /dev/hdc,
> > > >        missing codepage or other error
> > > > 
> > > > Any idea what could be causing this problem ?
> > > > 
> > > > 
> > > > -- 
> > > > Kim Lux,  Diesel Research Inc.
> > > > 
> > > > 
> > > -- 
> > > Kim Lux,  Diesel Research Inc.
> > > 
> > > 
> > -- 
> > Kim Lux,  Diesel Research Inc.
> > 
> > 
> -- 
> Kim Lux,  Diesel Research Inc.
> 
> 
-- 
Kim Lux,  Diesel Research Inc.