Comment 4 for bug 153980

here is my main.log:

2007-10-18 12:57:14,214 INFO release-upgrader version '0.81' started
2007-10-18 12:57:14,758 DEBUG lsb-release: 'feisty'
2007-10-18 12:57:14,758 DEBUG _pythonSymlinkCheck run
2007-10-18 12:57:15,996 DEBUG checkViewDepends()
2007-10-18 12:57:15,997 DEBUG getRequiredBackports()
2007-10-18 12:57:52,253 ERROR IOError in cache.update(): 'Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/feisty-backports/Release.gpg Connection failed [IP: 91.189.88.31 80]
'. Retrying (currentRetry: 0)
2007-10-18 12:58:27,905 DEBUG marking 'release-upgrader-apt' for install
2007-10-18 12:58:28,093 DEBUG marking 'release-upgrader-dpkg' for install
2007-10-18 13:00:30,767 DEBUG pre-requists item: '<pkgAcquire::ItemIterator object: Status: 2 Complete: 1 Local: 0 IsTrusted: 0 FileSize: 1924684 DestFile:'/tmp/tmpgk1qDv/backports/release-upgrader-dpkg_1.14.5ubuntu11.2_i386.udeb' DescURI: 'http://us.archive.ubuntu.com/ubuntu/pool/main/r/release-upgrader-dpkg/release-upgrader-dpkg_1.14.5ubuntu11.2'
2007-10-18 13:00:30,768 ERROR pre-requists item 'http://us.archive.ubuntu.com/ubuntu/pool/main/r/release-upgrader-dpkg/release-upgrader-dpkg_1.14.5ubuntu11.2_i386.udeb' is NOT trusted