It looks like you might have the CD-ROM set up in your sources file. Try
commenting it out and see if it solves the problem.
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad
** Changed in: update-manager (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/936323
Title:
Failed to download repository information
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/936323/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs