Comment 71 for bug 153980

tried doing that by hand (in the tmp dir: edit prerequists-sources.list , then run ./dist-upgrade.py ), but it fails later with the error box copied below.

code wants to get gutsy from same place as feisty ...

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Error during update

A problem occured during the update. This is usually some sort of network problem, please check your network connection and retry.

Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy/main/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy/restricted/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy/universe/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy/multiverse/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-updates/main/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-updates/restricted/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-updates/universe/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-updates/multiverse/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-security/main/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-security/restricted/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-security/universe/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-security/multiverse/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/main/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/restricted/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/universe/binary-i386/Packages.gz 404 Not Found
Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/multiverse/binary-i386/Packages.gz 404 Not Found