Hi all, I'm trying to run apt-get update on ubuntu 9.10

I've configured my proxy server and I can access the internet without any problem:

/etc/apt# wget "http://www.google.com"
Resolving (...)
Proxy request sent, awaiting response... 200 OK
Length: 292 [text/html]
Saving to: `index.html'
100%[=================================================================================================================================>] 292         --.-K/s   in 0s      

2010-04-02 17:20:33 (29.8 MB/s) - `index.html' saved [292/292]

But when I tried to use apt-get I got the following message:

Ign http://archive.ubuntu.com karmic Release.gpg
Ign http://ubuntu.univ-nantes.fr karmic Release.gpg       
Ign http://ubuntu.univ-nantes.fr karmic/main Translation-en_US
Ign http://ubuntu.univ-nantes.fr karmic/restricted Translation-en_US
Ign http://archive.ubuntu.com karmic Release   
Ign http://ubuntu.univ-nantes.fr karmic/multiverse Translation-en_US
Ign http://ubuntu.univ-nantes.fr karmic/universe Translation-en_US
Ign http://ubuntu.univ-nantes.fr karmic-updates Release.gpg
Ign http://archive.ubuntu.com karmic/main Sources
Ign http://ubuntu.univ-nantes.fr karmic-updates/main Translation-en_US
Ign http://ubuntu.univ-nantes.fr karmic-updates/restricted Translation-en_US
Ign http://ubuntu.univ-nantes.fr karmic-updates/multiverse Translation-en_US
Ign http://archive.ubuntu.com karmic/restricted Sources
Ign http://ubuntu.univ-nantes.fr karmic-updates/universe Translation-en_US
Ign http://ubuntu.univ-nantes.fr karmic-security Release.gpg
Ign http://archive.ubuntu.com karmic/main Sources
Ign http://ubuntu.univ-nantes.fr karmic-security/main Translation-en_US
Ign http://ubuntu.univ-nantes.fr karmic-security/restricted Translation-en_US
Ign http://ubuntu.univ-nantes.fr karmic-security/multiverse Translation-en_US
Ign http://archive.ubuntu.com karmic/restricted Sources
Ign http://ubuntu.univ-nantes.fr karmic-security/universe Translation-en_US
Ign http://ubuntu.univ-nantes.fr karmic Release
Err http://archive.ubuntu.com karmic/main Sources
  404  Not Found
Ign http://ubuntu.univ-nantes.fr karmic-updates Release
Ign http://ubuntu.univ-nantes.fr karmic-security Release
Err http://archive.ubuntu.com karmic/restricted Sources
  404  Not Found
Ign http://ubuntu.univ-nantes.fr karmic/main Packages
Ign http://ubuntu.univ-nantes.fr karmic/restricted Packages
Ign http://ubuntu.univ-nantes.fr karmic/multiverse Packages
Ign http://ubuntu.univ-nantes.fr karmic/restricted Sources
Ign http://ubuntu.univ-nantes.fr karmic/main Sources
Ign http://ubuntu.univ-nantes.fr karmic/universe Sources
Ign http://ubuntu.univ-nantes.fr karmic/universe Packages
Ign http://ubuntu.univ-nantes.fr karmic-updates/main Packages
Ign http://ubuntu.univ-nantes.fr karmic-updates/restricted Packages
Ign http://ubuntu.univ-nantes.fr karmic-updates/multiverse Packages
Ign http://ubuntu.univ-nantes.fr karmic-updates/restricted Sources
Ign http://ubuntu.univ-nantes.fr karmic-updates/main Sources
Ign http://ubuntu.univ-nantes.fr karmic-updates/universe Sources
Ign http://ubuntu.univ-nantes.fr karmic-updates/universe Packages
Ign http://ubuntu.univ-nantes.fr karmic-security/main Packages
Ign http://ubuntu.univ-nantes.fr karmic-security/restricted Packages
Ign http://ubuntu.univ-nantes.fr karmic-security/multiverse Packages
Ign http://ubuntu.univ-nantes.fr karmic-security/restricted Sources
Ign http://ubuntu.univ-nantes.fr karmic-security/main Sources
Ign http://ubuntu.univ-nantes.fr karmic-security/universe Sources
Ign http://ubuntu.univ-nantes.fr karmic-security/universe Packages
Ign http://ubuntu.univ-nantes.fr karmic/main Packages
Ign http://ubuntu.univ-nantes.fr karmic/restricted Packages
Ign http://ubuntu.univ-nantes.fr karmic/multiverse Packages
Ign http://ubuntu.univ-nantes.fr karmic/restricted Sources
Ign http://ubuntu.univ-nantes.fr karmic/main Sources
Ign http://ubuntu.univ-nantes.fr karmic/universe Sources
Ign http://ubuntu.univ-nantes.fr karmic/universe Packages
Ign http://ubuntu.univ-nantes.fr karmic-updates/main Packages
Ign http://ubuntu.univ-nantes.fr karmic-updates/restricted Packages
Ign http://ubuntu.univ-nantes.fr karmic-updates/multiverse Packages
Ign http://ubuntu.univ-nantes.fr karmic-updates/restricted Sources
Ign http://ubuntu.univ-nantes.fr karmic-updates/main Sources
Ign http://ubuntu.univ-nantes.fr karmic-updates/universe Sources
Ign http://ubuntu.univ-nantes.fr karmic-updates/universe Packages
Ign http://ubuntu.univ-nantes.fr karmic-security/main Packages
Ign http://ubuntu.univ-nantes.fr karmic-security/restricted Packages
Ign http://ubuntu.univ-nantes.fr karmic-security/multiverse Packages
Ign http://ubuntu.univ-nantes.fr karmic-security/restricted Sources
Ign http://ubuntu.univ-nantes.fr karmic-security/main Sources
Ign http://ubuntu.univ-nantes.fr karmic-security/universe Sources
Ign http://ubuntu.univ-nantes.fr karmic-security/universe Packages
Err http://ubuntu.univ-nantes.fr karmic/main Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic/restricted Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic/multiverse Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic/restricted Sources
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic/main Sources
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic/universe Sources
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic/universe Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-updates/main Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-updates/restricted Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-updates/multiverse Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-updates/restricted Sources
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-updates/main Sources
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-updates/universe Sources
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-updates/universe Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-security/main Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-security/restricted Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-security/multiverse Packages
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-security/restricted Sources
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-security/main Sources
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-security/universe Sources
  404  Not Found
Err http://ubuntu.univ-nantes.fr karmic-security/universe Packages
  404  Not Found
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/karmic/main/source/Sources.gz  404  Not Found

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/karmic/restricted/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic/main/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic/restricted/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic/multiverse/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic/restricted/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic/main/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic/universe/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic/universe/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-updates/main/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-updates/restricted/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-updates/multiverse/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-updates/restricted/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-updates/main/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-updates/universe/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-updates/universe/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-security/main/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-security/restricted/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-security/multiverse/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-security/restricted/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-security/main/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-security/universe/source/Sources.gz  404  Not Found

W: Failed to fetch http://ubuntu.univ-nantes.fr/ubuntu/dists/karmic-security/universe/binary-i386/Packages.gz  404  Not Found

apt.conf

However I can 'see' those files with firefox.

more /etc/apt/apt.conf
Acquire::http::proxy "http://www.myproxyname.fr:3128";

I also tried with port '80', or with a blank /etc/apt/apt.conf

source.list

grep -v "#" /etc/apt/sources.list

deb http://ubuntu.univ-nantes.fr/ubuntu/ karmic main restricted multiverse
deb http://ubuntu.univ-nantes.fr/ubuntu/ karmic-updates main restricted multiverse
deb http://ubuntu.univ-nantes.fr/ubuntu/ karmic universe
deb http://ubuntu.univ-nantes.fr/ubuntu/ karmic-updates universe
deb http://ubuntu.univ-nantes.fr/ubuntu/ karmic-security main restricted multiverse
deb http://ubuntu.univ-nantes.fr/ubuntu/ karmic-security universe

does anyone knows how to fix this ?

Thanks

Pierre