Comment 0 for bug 1244050

I go 'do-release-upgrade -d' and then at the end it tells me:
"
Error during update

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

W:Failed to fetch
http://extras.ubuntu.com/ubuntu/dists/trusty/main/binary-amd64/Packages
404 Not Found
, W:Failed to fetch
http://extras.ubuntu.com/ubuntu/dists/trusty/main/binary-i386/Packages
404 Not Found
, E:Some index files failed to download. They have been ignored, or
old ones used instead.

Restoring original system state

Aborting
"

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-release-upgrader-core 1:0.205.1
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
CrashDB: ubuntu
Date: Thu Oct 24 07:36:02 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2010-10-12 (1107 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to saucy on 2013-10-24 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2013-10-24 07:31:38.508410
 Log time: 2013-10-24 07:31:45.264557
 Log time: 2013-10-24 07:33:41.408628