não consigo atualizar o firefox e outros softwares - recebo mensagens not found

[Luciano Saraiva]

Seguem as mensagens que recebo do update manager:

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/f/firefox/firefox-gnome-support_3.6.6+nobinonly-0ubuntu0.10.04.1_i386.deb
  404  Not Found [IP: 91.189.88.37 80]


W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/f/firefox/firefox-branding_3.6.6+nobinonly-0ubuntu0.10.04.1_i386.deb
  404  Not Found [IP: 91.189.88.37 80]


W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_3.6.6+nobinonly-0ubuntu0.10.04.1_i386.deb
  404  Not Found [IP: 91.189.88.37 80]


W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/universe/f/firefox/firefox-3.0_3.6.6+nobinonly-0ubuntu0.10.04.1_all.deb
  404  Not Found [IP: 91.189.88.37 80]


W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/universe/f/firefox/firefox-3.0-gnome-support_3.6.6+nobinonly-0ubuntu0.10.04.1_all.deb
  404  Not Found [IP: 91.189.88.37 80]


W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/universe/f/firefox/firefox-3.5_3.6.6+nobinonly-0ubuntu0.10.04.1_all.deb
  404  Not Found [IP: 91.189.88.37 80]


W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/universe/f/firefox/firefox-3.5-branding_3.6.6+nobinonly-0ubuntu0.10.04.1_all.deb
  404  Not Found [IP: 91.189.88.37 80]


W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/pool/main/g/gdm/gdm_2.30.2.is.2.30.0-0ubuntu2_i386.deb
  404  Not Found


W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-generic_2.6.32.23.24_i386.deb
  404  Not Found


W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-image-generic_2.6.32.23.24_i386.deb
  404  Not Found


W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-headers-generic_2.6.32.23.24_i386.deb
  404  Not Found


W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/pool/main/l/linux/linux-libc-dev_2.6.32-23.37_i386.deb
  404  Not Found


W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/t/thunderbird/thunderbird_3.0.5+build2+nobinonly-0ubuntu0.10.04.1_i386.deb
  404  Not Found [IP: 91.189.88.37 80]


W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/x/xulrunner-1.9.2/xulrunner-1.9.2_1.9.2.6+nobinonly-0ubuntu0.10.04.1_i386.deb
  404  Not Found [IP: 91.189.88.37 80]

[JoseMelo]

Em "Canais de Software" > Programas do Ubuntu  mude o servidor e recarregue a lista.