Upgrade failed

[ANAND MOHAN]

i tried an upgrade from ubuntu 10.04 LTS to 12.04 using update manager
but it failed

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: update-manager 1:0.134.12.1
ProcVersionSignature: Ubuntu 2.6.32-40.87-generic 2.6.32.57+drm33.23
Uname: Linux 2.6.32-40-generic i686
Architecture: i386
Date: Wed Apr 4 22:14:51 2012
GConfNonDefault:
 /apps/update-manager/check_new_release_ignore=
 /apps/update-manager/show_details=false
 /apps/update-manager/show_versions=false
InstallationMedia: Ubuntu 10.04.4 LTS "Lucid Lynx" - Release i386 (20120214.2)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en
 PATH=(custom, user)
 LANG=en_IN.utf8
 SHELL=/bin/bash
SourcePackage: update-manager
VarLogDistupgradeAptlog:
 Log time: 2012-04-04 22:07:57.930091
 Log time: 2012-04-04 22:10:50.940634
 Log time: 2012-04-04 22:14:39.325641
 Log time: 2012-04-04 22:14:54.677882
VarLogDistupgradeTermlog:

[Brian Murray (brian-murray)]

There seems to be a network layer problem:

Cannot initiate the connection to in.archive.ubuntu.com:80 (91.189.92.184). - connect (101: Network is unreachable) [IP: 91.189.92.184 80]

I'm able to access in.archive.ubuntu.com without any issue.

[dino99 (9d9)]

This version is no more supported