upgrading abort

Hi
   Last night I wana to upgrade kubuntu I came across the strange error.
first I tried on Konsole it resulted the error by showing

[sudo] password for ziaa:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
  update-manager-core
1 upgraded, 0 newly installed, 0 to remove and 219 not upgraded.
Need to get 30.4kB of archives.
After unpacking 0B of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  update-manager-core
Install these packages without verification [y/N]? y
Get:1 http://archive.ubuntu.com gutsy-updates/main update-manager-core 1:0.81.3 [30.4kB]
Fetched 30.4kB in 2s (11.2kB/s)
(Reading database ... 96560 files and directories currently installed.)
Preparing to replace update-manager-core 1:0.81 (using .../update-manager-core_1%3a0.81.3_i386.deb) ...
Unpacking replacement update-manager-core ...
Setting up update-manager-core (1:0.81.3) ...

ziaa@Gikian:~$ sudo do-release-upgrade
Checking for a new ubuntu release
host 'archive.ubuntu.com' could not be resolved
host 'archive.ubuntu.com' could not be resolved
Done Upgrade tool signature
Done Upgrade tool
Done downloading
extracting '/tmp/tmp1m8XeW/hardy.tar.gz'
authenticate '/tmp/tmp1m8XeW/hardy.tar.gz' against '/tmp/tmp1m8XeW/hardy.tar.gz.gpg'

Reading cache

Checking package manager
Reading package lists: Done
Reading state information: Done
Reading state information: Done
Reading state information: Done
Done cdrom://Kubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016.1) gutsy Release
Done http://archive.ubuntu.com gutsy Release.gpg
Done http://archive.canonical.com gutsy Release.gpg
Done http://security.ubuntu.com gutsy-security Release.gpg
Done http://archive.ubuntu.com gutsy-updates Release.gpg
Ignored http://ppa.launchpad.net gutsy Release.gpg
Failed http://ppa.launchpad.net gutsy Release.gpg
Hit http://security.ubuntu.com gutsy-security Release
Done http://security.ubuntu.com gutsy-security Release
Hit http://archive.ubuntu.com gutsy Release
Done http://archive.ubuntu.com gutsy Release
Hit http://security.ubuntu.com gutsy-security/universe Packages
Hit http://archive.ubuntu.com gutsy-updates Release
Done http://archive.ubuntu.com gutsy-updates Release
Hit http://archive.canonical.com gutsy Release
Done http://archive.canonical.com gutsy Release
Hit http://ppa.launchpad.net gutsy Release
Ignored http://ppa.launchpad.net gutsy/main Packages
Failed http://ppa.launchpad.net gutsy/main Packages
Failed http://ppa.launchpad.net gutsy/main Packages
Hit http://security.ubuntu.com gutsy-security/main Packages
Ignored http://security.ubuntu.com gutsy-security/multiverse Packages
Failed http://security.ubuntu.com gutsy-security/multiverse Packages
Ignored http://security.ubuntu.com gutsy-security/universe Sources
Failed http://security.ubuntu.com gutsy-security/universe Sources
Ignored http://security.ubuntu.com gutsy-security/main Sources
Failed http://security.ubuntu.com gutsy-security/main Sources
Ignored http://security.ubuntu.com gutsy-security/multiverse Sources
Failed http://security.ubuntu.com gutsy-security/multiverse Sources
Hit http://archive.ubuntu.com gutsy/main Packages
Hit http://archive.canonical.com gutsy/partner Packages
Hit http://security.ubuntu.com gutsy-security/multiverse Packages
Hit http://archive.ubuntu.com gutsy/universe Packages
Hit http://security.ubuntu.com gutsy-security/universe Sources
Hit http://archive.ubuntu.com gutsy/multiverse Packages
Hit http://security.ubuntu.com gutsy-security/main Sources
Hit http://archive.ubuntu.com gutsy/main Sources
Hit http://security.ubuntu.com gutsy-security/multiverse Sources
Hit http://archive.ubuntu.com gutsy/universe Sources
Hit http://archive.ubuntu.com gutsy/multiverse Sources
Hit http://archive.ubuntu.com gutsy-updates/universe Packages
Hit http://archive.ubuntu.com gutsy-updates/main Packages
Hit http://archive.canonical.com gutsy/partner Sources
Hit http://archive.ubuntu.com gutsy-updates/multiverse Packages
Hit http://archive.ubuntu.com gutsy-updates/universe Sources
Ignored http://archive.ubuntu.com gutsy-updates/main Sources
Failed http://archive.ubuntu.com gutsy-updates/main Sources
Ignored http://archive.ubuntu.com gutsy-updates/multiverse Sources
Failed http://archive.ubuntu.com gutsy-updates/multiverse Sources
Failed http://archive.ubuntu.com gutsy-updates/main Sources
Failed http://archive.ubuntu.com gutsy-updates/multiverse Sources
Done downloading
Reading package lists: Done
Reading state information: Done
Reading state information: Done
Reading state information: Done

Updating repository information

Third party sources disabled

Some third party entries in your sources.list were disabled. You can
re-enable them after the upgrade with the 'software-properties' tool
or your package manager.

Ignored http://archive.ubuntu.com hardy Release.gpg
Failed http://archive.ubuntu.com hardy Release.gpg
Ignored http://archive.ubuntu.com hardy-updates Release.gpg
Failed http://archive.ubuntu.com hardy-updates Release.gpg
Done http://security.ubuntu.com hardy-security Release.gpg
Done http://archive.canonical.com hardy Release.gpg
Done http://archive.canonical.com hardy Release
Done http://archive.canonical.com hardy Release
Done http://archive.canonical.com hardy/partner Packages
Done http://archive.canonical.com hardy/partner Packages
Done http://archive.canonical.com hardy/partner Sources
Done http://archive.canonical.com hardy/partner Sources
Done http://security.ubuntu.com hardy-security Release
Done http://security.ubuntu.com hardy-security Release
Done http://archive.ubuntu.com hardy Release
Done http://archive.ubuntu.com hardy-updates Release
Done http://security.ubuntu.com hardy-security/universe Packages
Done http://security.ubuntu.com hardy-security/universe Packages
Done http://security.ubuntu.com hardy-security/main Packages
Done http://security.ubuntu.com hardy-security/main Packages
Done http://security.ubuntu.com hardy-security/multiverse Packages
Done http://security.ubuntu.com hardy-security/multiverse Packages
Done http://security.ubuntu.com hardy-security/universe Sources
Done http://security.ubuntu.com hardy-security/universe Sources
Done http://security.ubuntu.com hardy-security/main Sources
Done http://security.ubuntu.com hardy-security/main Sources
Done http://security.ubuntu.com hardy-security/multiverse Sources
Done http://security.ubuntu.com hardy-security/multiverse Sources
Done http://archive.ubuntu.com hardy/main Packages
Done http://archive.ubuntu.com hardy/main Packages
Done http://archive.ubuntu.com hardy/universe Packages
Done http://archive.ubuntu.com hardy/universe Packages
Done http://archive.ubuntu.com hardy/multiverse Packages
Done http://archive.ubuntu.com hardy/multiverse Packages
Done http://archive.ubuntu.com hardy/main Sources
Done http://archive.ubuntu.com hardy/main Sources
Done http://archive.ubuntu.com hardy/universe Sources
Done http://archive.ubuntu.com hardy/universe Sources
Done http://archive.ubuntu.com hardy/multiverse Sources
Ignored http://archive.ubuntu.com hardy-updates/universe Packages
Failed http://archive.ubuntu.com hardy-updates/universe Packages
Done http://archive.ubuntu.com hardy/multiverse Sources
Done http://archive.ubuntu.com hardy-updates/main Packages
Done http://archive.ubuntu.com hardy-updates/main Packages
Done http://archive.ubuntu.com hardy-updates/multiverse Packages
Done http://archive.ubuntu.com hardy-updates/multiverse Packages
Done http://archive.ubuntu.com hardy-updates/universe Sources
Done http://archive.ubuntu.com hardy-updates/universe Sources
Done http://archive.ubuntu.com hardy-updates/main Sources
Done http://archive.ubuntu.com hardy-updates/multiverse Sources
Done http://archive.ubuntu.com hardy-updates/main Sources
Done http://archive.ubuntu.com hardy-updates/multiverse Sources
Done http://archive.ubuntu.com hardy-updates/universe Packages
Done http://archive.ubuntu.com hardy-updates/universe Packages
Done downloading

Checking package manager
Reading package lists: Doneardy-updates/multiverse Packages: 97
Reading state information: Done
Reading state information: Done
Reading state information: Done

Calculating the changes

Restoring original system state

Aborting
cdrom://Kubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016.1) gutsy/main Packacdrom://Kubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016.1) gutsy/restrictedReading package lists: Donetsy/main Packages: 96 Packages: 95
Reading state information: Done
Reading state information: Done
Reading state information: Done
ziaa@Gikian:~$

then i tried on Adept Manager it gave the error too

the snapshot of the error windows is given as
file:///home/ziaa/Desktop/snapshot1.png

the quotes given in the error windows are

Failed to fetch http://archive.canonical.com/ubuntu/dists/hardy/Release.gpg Could not resolve 'archive.canonical.com'
Failed to fetch http://archive.canonical.com/ubuntu/dists/hardy/partner/i18n/Translation-en_US.bz2 Could not resolve 'archive.canonical.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/Release.gpg Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/main/i18n/Translation-en_US.bz2 Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/universe/i18n/Translation-en_US.bz2 Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/multiverse/i18n/Translation-en_US.bz2 Could not resolve 'archive.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/Release.gpg Could not resolve 'security.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/universe/i18n/Translation-en_US.bz2 Could not resolve 'security.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/main/i18n/Translation-en_US.bz2 Could not resolve 'security.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/multiverse/i18n/Translation-en_US.bz2 Could not resolve 'security.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/Release.gpg Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/universe/i18n/Translation-en_US.bz2 Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/main/i18n/Translation-en_US.bz2 Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/multiverse/i18n/Translation-en_US.bz2 Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.canonical.com/ubuntu/dists/hardy/partner/binary-i386/Packages.gz Could not resolve 'archive.canonical.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/main/binary-i386/Packages.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/universe/binary-i386/Packages.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/multiverse/binary-i386/Packages.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/main/source/Sources.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/universe/source/Sources.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy/multiverse/source/Sources.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/universe/binary-i386/Packages.gz Could not resolve 'security.ubuntu.com'
Failed to fetch http://archive.canonical.com/ubuntu/dists/hardy/partner/source/Sources.gz Could not resolve 'archive.canonical.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/universe/binary-i386/Packages.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/main/binary-i386/Packages.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/multiverse/binary-i386/Packages.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/universe/source/Sources.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/main/source/Sources.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/hardy-updates/multiverse/source/Sources.gz Could not resolve 'archive.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/main/binary-i386/Packages.gz Could not resolve 'security.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/multiverse/binary-i386/Packages.gz Could not resolve 'security.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/universe/source/Sources.gz Could not resolve 'security.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/main/source/Sources.gz Could not resolve 'security.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/hardy-security/multiverse/source/Sources.gz Could not resolve 'security.ubuntu.com'

Thanks!!!!!!!!!!