Adding alternate repository failed on reload.

I attempted to add an alternate repository in Ubuntu 8.10.  Can someone help out with the error message I received?

Ubuntu Intrepid

After contacting Ubuntu packagers, it seems that Jaunty packages will never enter backports. Therefore it is recommended to install Kdenlive using alternative repositories. Here is our recommended choice:

  1. Go to your system menu > Software sources > Third-Party Software
  2. Click add and paste this line in:
    deb intrepid main
  3. Close software source and click reload


I received the following when I reloaded:

W: GPG error: intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B00E04A9D58062FB

You need to install signatures. In Debian-multimedia, signatures are part of a package. The advantage is that you can upgrade the package and this will update the signature.


gpg --keyserver --recv 0c713da6

gpg --export --armor 0c713da6 | sudo apt-key add - Tell us if it works and will will add it to the guide.

I tried each command.  Neither one resolved the issue.  I still get the error message when I reload from the repositories.  For the second command, I had to break it into two command lines to get it to complete successfully:

$ gpg --export --armor 0c713da6 | sudo apt-key add

gpg: can't open `': No such file or directory

$ gpg --export --armor 0c713da6 > test

$ sudo apt-key add test



This error message warns you that you cannot verify the identity of the repository, however you can still install Kdenlive from it. Kdenlive should appear in the installable programs list.

If you want to get rid of that warning, import the correct key:

gpg --keyserver --recv B00E04A9D58062FB
gpg --export --armor D58062FB |sudo apt-key add -

1. go to

2. click on F8DAF736A0F5EEE030AE0B9CB00E04A9D58062FB OpenPGP key.

3. click on the ID (D58062FB)

4. copy the text from "-----BEGIN PGP PUBLIC KEY BLOCK-----" to "-----END PGP PUBLIC KEY BLOCK-----" , to a new text file (in ubuntu you can just select the text, drop it on your desktop it will automatically create a new file)

5. System Menu > Administration > Software Sources > Authentification

6. click Add, and chose the file you just created.


Thanks, j-b-m!  Your suggested command lines worked for me on Ubuntu Intrepid 8.10!

This Kdenlive application looks really awesome!  I can't wait to try it!  I had no idea there was anything like this for Linux.  I'm a Windows guy trying to give Linux a fair shake and so far, it's been an enjoyable and interesting experience.

Have a nice day!


Thanks j-b-m.  All warnings are cleared and the installation looks to have been successful.  I'm looking forward to firing up the software and trying it out.