CD mount problem after DVD rip

[Scott Talbot]

jim branagan wrote:

> I used to be able to write and rip audio CD's, with cdda2wav and 
> cdrecord, and write data CD's with xcdroast, and to mount data CD's 
> and open them to copy out contents.  I am using a Memorex 
> CD-writer/DVD-rom drive.
>
> The other day I mounted and read data from a data DVD.
>
> Now I can't rip, write or mount CD's anymore.
> I get the message '/dev/hdc already mounted or /media/cdrecorder is 
> busy'.
> mount and mtab show /dev/hdc is not mounted.
> Shutting down the machine and rebooting does not help.
> I can still mount and read DVD's though - KDE says the DVD is mounted, 
> and can transfer files from it, but mount/mtab say /dev/hdc is not 
> mounted.  Attempting to unmount /dev/hdc results in '/dev/hdc not 
> mounted'.  I don't see anything else unexpected mounted.
>
    Try: lsof | grep /hdc
to see if there are any files open on the cdwriter

umount -l /dev/hdc

should unmount any filesystem even if busy

Scott