distro update issues...11.04-11.10

[Lorenzo Woodley]

For some reason my computer goes into a update panic half way through checking its update im trying to update my distro to 11.10

the error says
Failed to download repository information

Check your Internet connection.
>details
W:Failed to fetch cdrom://Ubuntu 10.10 _Maverick Meerkat_ - Release i386 (20101007)/dists/maverick/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
, W:Failed to fetch cdrom://Ubuntu 10.10 _Maverick Meerkat_ - Release i386 (20101007)/dists/maverick/restricted/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
, E:Some index files failed to download. They have been ignored, or old ones used instead.

Please help im confused as to why this did not work also...unrelated note expose.plug-in and compiz cube do not work i activeded them separately and neither keyboard commands work

[Brian Murray (brian-murray)]

You likely have lines in your /etc/apt/sources.list file mentioning cdrom or Maverick Meerkat in them. Please disable these by adding # in front of the line or deleting the line and then you should be able to upgrade.