Debian APT repos not found? Switch to the archive!

If you’re running an older release of Debian and you’re seeing messages like this when you try and apt-get installs, then it’s probably because your release has been taken off the main mirrors and can no longer be updated that way.

W: Failed to fetch  404 Not Found [IP: 80]
W: Failed to fetch  404 Not Found [IP: 80]
W: Failed to fetch  404 Not Found [IP: 80]
W: Failed to fetch  404 Not Found [IP: 80]
E: Some index files failed to download, they have been ignored, or old ones used instead.

You essentially have two choices; either upgrade your distribution to the latest release, or switch to the archive mirrors.

In general when I’m in a hurry I like to just switch to the archive mirrors because it’s quick and I usually don’t want to get into distribution upgrades in the middle of the day.

With that in mind, it’s pretty simple.

First, edit your /etc/apt/sources.list file. Comment out (or delete) everything except your primary mirror reference. It’ll look something like this:

deb lenny main
deb-src lenny main

To update this to the archive mirror, change these lines to:

deb lenny main
deb-src lenny main

Save the file and return to the console.

Next, you need to purge the APT cache, this is a simple:

apt-get clean all

Finally, you probably need to update the GPG keyring. If not, you’ll probably see errors that look like this:

W: GPG error: lenny Release: The following signatures were invalid: KEYEXPIRED 1337087218
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AED4B06F473041FA

To update the keyring, simply run this command:

apt-get install debian-archive-keyring

…and you’re all done. You should be able to use apt-get install normally as before.

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  1. H H Chau
    Posted August 7, 2012 at 10:14 am | Permalink

    Thanks a lot. The follow just works for me. For some reason, I’m still on lenny. Cheers. 7-Aug-2012

    apt-get install debian-archive-keyring

    • Timothy Creswick
      Posted October 29, 2012 at 9:36 pm | Permalink

      That’ll work if you’re already using a mirror that keeps the archives.

      Glad it was helpful.

  2. Posted August 11, 2012 at 2:10 pm | Permalink

    Thanks a lot for the guide, that saved me some time today .

    Greetings from Leeds :)

    • Timothy Creswick
      Posted October 29, 2012 at 9:35 pm | Permalink

      Glad it was helpful!

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