Upgrade via Update manager failed

[alviks]

Binary package hint: firefox

1. Release: 7.04

2. When I try to check the package name in Synaptic, all I get is "Could not download all repository indexes", so I'm not sure about the release (I am pretty new to Ubuntu and Linux)
3, 4. I have had some crashes lately, so I want to upgrade to 7.10 or higher from 7.04. When I try tu update via Update manager, it fails and I am prompted to report this as a bug and to include the files in "/var/log/dist", which in my case is "/var/log/dist-upgrade" , where 3 files are stored. I dont know how to attach 3 files so I pick just one of them, created today. Let me know if you ned the other 2 as well. Thanks and regards
Allan

ProblemType: Bug
Architecture: i386
Date: Tue Apr 14 19:02:49 2009
DistroRelease: Ubuntu 7.04
Package: firefox 2.0.0.17+0nobinonly-0ubuntu0.7.4
PackageArchitecture: i386
SourcePackage: firefox
Uname: Linux ubuntu-desktop 2.6.20-17-generic #2 SMP Wed Aug 20 16:47:34 UTC 2008 i686 GNU/Linux

[Ilya Barygin (randomaction)]

Indeed, you seem to have Ubuntu 7.04 installed. It reached its end of life in October 2008, so the software repositories have been moved to a different place. To continue with upgrade, you need to correct your sources.list file. To do this, start a terminal (Apllications -> Accessories -> Terminal) and enter:

gksudo gedit /etc/apt/sources.list

An editor window will open. Throughout this file, release archive.ubuntu.com with old-releases.ubuntu.com . Save and exit. Synaptic and update manager should be functional after this.

[alviks (allanvikstrom)]

I follwed your directions with this result:
In Update Manager, I make a “check” for new updates before I click
“Update” to download the 7.10 release.

     2. I see the release notes in a new window and I click “upgrade”

     3. 62 files are downloaded

     4. A new Window pops up with the text: “No valid mirror found

While scanning your repository information no mirror entry for the
upgrade was found.This can happen if you run a internal mirror or if the
mirror information is out of date.

Do you want to rewrite your 'sources.list' file anyway? If you choose
'Yes' here it will update all 'feisty' to 'gutsy' entries.

If you select 'no' the update will cancel.”

I chose “Yes” to continue with the upgrade.

A new Window pops up: “Third party sources disabled

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

No options offered but, to close the window, which I do

The update progresses a second or two, then a new window:

“Error during update

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

Inside the “Error during update-window" is the following text:

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/main/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

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/restricted/source/Sources.gz 404 Not Found

Failed to fetch
http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/main/source/Sources.gz 404 Not Found

Failed to fetch
http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/multiverse/source/Sources.gz 404 Not Found

Failed to fetch
http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/universe/source/Sources.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

Failed to fetch
http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/main/debian-installer/binary-i386/Packages.gz 404 Not Found

Failed to fetch
http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/main/source/Sources.gz 404 Not Found

Failed to fetch
http://old-releases.ubuntu.com/ubuntu/dists/gutsy-backports/restricted/source/Sources.gz 404 Not Found

Failed to fetch
http://old-releases.ubuntu.com/ubuntu/dists...