Linked Questions

0
votes
2answers
367 views

Installing medibuntu fails [duplicate]

Possible Duplicate: How do I fix the GPG error “NO_PUBKEY”? I'm trying to install Medibuntu following the instructions from Medibuntu site, I paste in the terminal: sudo -E ...
1
vote
1answer
415 views

Update Manager error 12.04 [duplicate]

Possible Duplicate: How do I fix the GPG error “NO_PUBKEY”? I'm using Ubuntu 12.04. When attempting to run my Update Manager, it doesn't allow any of the updates to be loaded. Under ...
0
votes
1answer
163 views

Not able to update [duplicate]

Possible Duplicate: How do I fix the GPG error “NO_PUBKEY”? I am new to Ubuntu and am having troubles Updating. Here is the error I'm receiving: W:GPG error: ...
1
vote
1answer
197 views

Updage Manager considers generic packages as untrusted packages

Update Manager refuses to install updates because it would require installing untrusted packages. However, if I look at the list of so-called untrusted packages, those seem like they should be ...
0
votes
1answer
191 views

Strange GPG error. apt-get doesn't work anymore [duplicate]

If I run anything apt-get related, I get this error: W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: ...
-1
votes
1answer
212 views

error while apt update [duplicate]

W: GPG error: http://deb.opera.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E585066A30C18A2B W: Duplicate sources.list entry ...
0
votes
0answers
204 views

How to solve the problems in “sudo apt-get update” [duplicate]

Here is my /etc/apt/source.list file. I get many problems in the output of sudo apt-get update: $ sudo apt-get update [sudo] password for tim: Err http://cran.cnr.Berkeley.edu precise/ Release.gpg ...
0
votes
1answer
121 views

Can't get rid of GPG-error: http://download.opensuse.org [duplicate]

I have been googling for hours trying to find a way to get rid of the annoying gpg-error referring to the link below. W: GPG error: http://download.opensuse.org Release: The following signatures ...
0
votes
1answer
83 views

W: GPG error: message in my terminal

I get this msg in my terminal W: GPG error: https://download.01.org trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A902DDA375E52366 ...
0
votes
1answer
77 views

I'm getting a gpg error [duplicate]

I'm getting a gpg error: http://ppa.launchpad.net precise Release: the following signatures couldn't be verified because the public key is not available : NO_PUBKEY 5A9A06AEF9C8DB0 This came ...
0
votes
0answers
83 views

Unable to install Enlightenment libraries (E17) on precise

I have tried all the solutions I could find on the forum. After adding the PPA links to the system's Software Resources and then issuing the apt-get update command results in following error. W: GPG ...
1
vote
1answer
48 views

Why am I getting errors today when updating Oneiric PPAs? [closed]

When I update software from terminal with sudo apt-get update almost always don't shown errors but this time is different. What I think is that most of the ppa pages has been modified. i.e. When the ...
-1
votes
2answers
70 views

Package manager errors on my ubuntu [duplicate]

I have this issues with my ubuntu apt-get update http://pastebin.com/embed_js.php?i=Ex18v2Ku ubilli@ubilli-pc ~> sudo apt-get update [sudo] password for ubilli: Ign http://ppa.launchpad.net ...
0
votes
0answers
65 views

Cannot install Ubuntu SDK [duplicate]

I get the following error in terminal while installing the SDK W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not ...
1
vote
2answers
52 views

can't update recommended Updates

I can't update the system. The recommended Updates pops up with some updates but when I hit install it says"Requires installation of untrusted packages"(screen shot below ) and when I hit O.K it ...

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