0
votes
0answers
9 views

Error in Ubuntu Gnome 15.04 repository list [duplicate]

I'm having problem updating my repository list in Ubuntu Gnome 15.4 : Baixados 4.665 B em 1min 39s (46 B/s) Lendo listas de pacotes... Pronto W: Erro GPG: http://archive.canonical.com vivid ...
89
votes
12answers
180k views

How to fix missing GPG keys?

I have just installed Ubuntu 12.04 and I added some repo and when apt-get update i got missing gpg key. Following command seems to doesn't work for me: apt-get update 2> /tmp/keymissing; for key ...
100
votes
3answers
98k 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 ...
66
votes
9answers
54k 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 ...
66
votes
4answers
110k 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 ...
29
votes
1answer
43k 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: ...
17
votes
1answer
41k views

GPG ERROR NO_PUBKEY : WARNING: The following packages cannot be authenticated! [closed]

I have just stared to receive some strange errors regarding GPG keys. Namely I have just added ppa:ubuntu-toolchain-r/test and wanted to update and after that I got this: W: GPG error: ...
16
votes
1answer
10k views

Error authenticating some packages while upgrade

When I try to upgrade my ubuntu 13.04 to 13.10, it gives the following error: It was not possible to authenticate some packages. This may be a transient network problem. You may want to try again ...
9
votes
2answers
3k views

There is no public key available for the following key IDs 1397BC53640DB551 (google chrome bug)

When I run the command: sudo apt-get update I got this following warning: There is no public key available for the following key IDs: 1397BC53640DB551 This is the only warning I got and I do not ...
9
votes
2answers
9k views

GPG error, signatures public key not available TRIED A LOT

apt-get update returns : W: GPG error: http://pl.archive.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 ...
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
4k 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 ...
0
votes
2answers
10k views

Can't get anything to install, dependency errors

I'm extremely new to Linux/command line stuff, so please forgive my ignorance. Every time I try to install anything using sudo apt-get install ... I get dependency errors. I'm trying to get OpenSSH ...
0
votes
4answers
9k views

Update Manager Not working Fail to Download Repository Information

When I try to update, I get this error: Failed to Download your repository information Check your internet connection W:GPG error: http ://ppa.launchpad.net oneiric Release: The following ...
7
votes
1answer
2k 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 ...

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