error

I used UNetBootin to install Karmic (Ubuntu 9.10) to my laptop, but I kept running into the error "Failed to unmount partitions"

The installer needs to commit changes to partition tables, but cannot do so becaue partitions on the following mount points could not be unmounted:

/cdrom

Please close any applications using these mount points

Would you like the installer to try to unmount these partitions again?"