Linked Questions

73
votes
3answers
64k views

How do I deal with “unauthenticated sources” errors in the Software Center?

Any install that I'm trying through the Software Center is telling me: Requires installation of untrusted packages: The action would require the installation of packages from not authenticated ...
60
votes
9answers
49k views

What's the difference between Wubi and a regular “alongside Windows” installation?

At this time, Wubi does not work with Windows 8 default boot-loader. Thus at this point Wubi would not work on a new Windows 8 machine. Citation fom WubiGuide Question Recently I've learned ...
47
votes
4answers
56k views

Requires installation of untrusted packages?

I tried installing VLC Player yesterday, and I got the Requires installation of untrusted packages error. I searched for hours for a solution to this problem, and finally came upon a suggestion that ...
25
votes
2answers
25k views

GPG error: The following signatures couldn't be verified because the public key is not available [duplicate]

Possible Duplicate: How do I fix the GPG error “NO_PUBKEY”? after sudo apt-get update I get this error: W: GPG error: http://archive.hivemind.me all Release: The following signatures ...
16
votes
1answer
23k views

How to fix GPG in updater [duplicate]

I have asked this question before, but it was closed as a "duplicate." I can assure you that my scenario is original, as it does not refer to third party PPA's. I am having GPG problems with system ...
11
votes
1answer
13k views

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

I get the following error when i do sudo apt-get update W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: ...
7
votes
1answer
9k views

Apt-get update error: http://extras.ubuntu.com Public key unavailable [duplicate]

GPG error: http://extras.ubuntu.com natty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192 I think I selected to ...
7
votes
1answer
1k views

What are the GPG signatures

Looking at questions like THIS, THIS and THIS I ask for public knowledge the following questions: What are the GPG Signatures for? What additional level of security do the Signatures add or provide ...
6
votes
1answer
779 views

How to make a sound effect play whenever I click?

I know that sounds like a weird idea, but I kinda want to experiment with this. Over the past few months, I've kinda turned Ubuntu into my own little Frankenstein's monster, but whatever you tell me ...
5
votes
2answers
2k views

Where can I get “DA360C64005E0276” public key for “ppa.launchpad.net maverick Release”?

When I apt-get update I get the following error: W: GPG error: http://ppa.launchpad.net maverick Release: The following signatures couldn't be verified because the public key is not available: ...
5
votes
3answers
3k views

Update information is outdated

How can I fix my update problem. I am using Maverick 10.10 and update daily, however I get the warning triangle that tells me that the update information is outdated. After I perform an update it ...
4
votes
0answers
740 views

W: GPG error: http://ppa.launchpad.net lucid Release: [duplicate]

Possible Duplicate: How do I fix the GPG error “NO_PUBKEY” without terminal? After i run sudo aptitude update i get the below error: W: GPG error: http://ppa.launchpad.net ...
3
votes
0answers
5k views

How to fix W: GPG error:… NO_PUBKEY? [duplicate]

Possible Duplicate: How do I fix the GPG error “NO_PUBKEY” without terminal? I get this message when I use Update-Manager: W: GPG error: http://ppa.launchpad.net lucid Release: ...

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