Thanks, that was it. Updated no problem. bicyclerepairman --- On Wed, 2/9/11, Manfred Hampl wrote: From: Manfred Hampl Subject: [Bug 712253] Re: error during udgrade To: Date: Wednesday, February 9, 2011, 3:51 AM Now this can be a duplicate of bug 658458 (and a dozen similar ones) If the package xserver-xorg-video-nouveau is installed, in several cases the 10.04 to 10.10 upgrade fails with the error message "Could not determine the upgrade An unresolvable problem occurred while calculating the upgrade: E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu" Several persons have reported that after removal of that package the upgrade was successful. Try this workaround: Open a terminal and enter the command: sudo apt-get remove xserver-xorg-video-nouveau and try the upgrade again. -- You received this bug notification because you are a direct subscriber of the bug. https://bugs.launchpad.net/bugs/712253 Title: error during udgrade Status in “update-manager” package in Ubuntu: New Bug description: Binary package hint: update-manager W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick/restricted/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick/main/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick/restricted/source/Sources.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick/universe/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick/universe/source/Sources.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick/multiverse/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick/multiverse/source/Sources.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-updates/restricted/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-updates/main/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-updates/restricted/source/Sources.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-updates/universe/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-updates/universe/source/Sources.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-updates/multiverse/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-updates/multiverse/source/Sources.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-security/restricted/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-security/main/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-security/restricted/source/Sources.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-security/universe/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-security/universe/source/Sources.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-security/multiverse/binary-i386/Packages.gz 404 Not Found , W:Failed to fetch http://astromirror.uchicago.edu/ubuntu/dists/maverick-security/multiverse/source/Sources.gz 404 Not Found , E:Some index files failed to download, they have been ignored, or old ones used instead. To unsubscribe from this bug, go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/712253/+subscribe