Need the beta cd for upgrade?

[wilwil0]

I'm upgrading from 9.10 to 10.04.

I selected Partial Upgrade on the Upgrade Manager, the Distribution Upgrade window had fetched 356 of 361 packets. However now it has come up with a window saying: "Please insert 'Ubuntu 10.04 _Lucid Lynx_ - Beta i386 (20100318)' into the drive '/cdrom/'"

I don't have a CD with the Beta on and I can't find it on the list of downloads:
http://www.ubuntu.com/desktop/get-ubuntu/alternative-download

Where can I either get this download or just generally what the hell do I do?

[John Bean]

It probably got added to your sources somehow. Look in "Software Sources" on the System menu and uncheck the "Installable from CD" option and see if that resolves it.

[wilwil0]

Thanks, it worked, sort of, I now have a different and far worse problem now.

http://ubuntuforums.org/showthread.php?t=1509010

Appreciated the help though, I'll remember to always check software sources in future.