Repository error

[pwabrahams]

While attempting an upgrade via Synaptic, I got the following error:

W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2836CB0A8AC93F7A

What should I make of this? Should I do the update anyway?

[Fintan]

Re: Repository error

If you trust that repository the you have no problem
This message is tellung you that you have not added the "trust me" key.

Did you add a repository?

If so which one?
Is it a PPA?

Assuming this is a trusted repository you can do this:

sudo apt-key adv --recv-key --keyserver keyserver.ubuntu.com 2836CB0A8AC93F7A

From Kamic onwards you can add PPA's incl the key with this command:

sudo add-apt-repository ppa:namepfPPA

where "nameofPPA" is replaced by the PPA you want to add.

Also see here:
http://www.ubuntugeek.com/ubuntu-tip...in-karmic.html


Hope this helps.

[pwabrahams]

Trusting a repository

I don't know whether or not I can trust the repository, though I assume I can. I've been trying to determine why synaptic is trying to use it. In synaptic's repository settings, the first two tabs are Ubuntu Software and Other Software. The Ubuntu Software tab doesn't even list repositories individually; it only lists them by category. As to Other Software, the only two from launchpad are:

http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu lucid main
http://ppa.launchpad.net/lib4l/ppa/ubuntu lucid main

Neither of these seem to be the one that caused the complaint.