Apt-get Update GPG Key Errors and Fix

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Running sudo apt-get upgrade, I started getting this error:

Reading package lists... Done

W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 313D312748A22A95

W: You may want to run apt-get update to correct these problems

Ah ha! But apt-get update is the command causing this problem.

The solution is to import this key from the gpg servers; I don’t know why this isn’t done automatically, but here is it:

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 313D312748A22A95; gpg --export --armor 313D312748A22A95 | sudo apt-key add -

Resulting in:

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --recv-keys --keyserver keyserver.ubuntu.com 313D312748A22A95 gpg: requesting key 48A22A95 from hkp server keyserver.ubuntu.com gpg: key 48A22A95: public key "Launchpad PPA for Filip Brcic" imported gpg: Total number processed: 1 gpg: unchanged: 1 OK

Congrats! sudo apt-get update now works properly!

13 comments

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Runaway1956 says:

March 21, 2009 at 5:22 pm

Ahhh. One more little annoyance solved. Now, to save this page to hard drive, for future reference when I have no internet!
Runaway1956 says:

March 21, 2009 at 1:22 pm

Ahhh. One more little annoyance solved. Now, to save this page to hard drive, for future reference when I have no internet!
X says:

July 4, 2009 at 11:59 am

I am unable to do this.
Please see error below. Any help would be appreciated.
Thanks.

~$ sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com FE85409EEAB40ECCB65740816AF0E1940624A220

Executing: gpg –ignore-time-conflict –no-options –no-default-keyring –secret-keyring /etc/apt/secring.gpg –trustdb-name /etc/apt/trustdb.gpg –keyring /etc/apt/trusted.gpg –recv-keys –keyserver keyserver.ubuntu.com FE85409EEAB40ECCB65740816AF0E1940624A220
gpg: requesting key 0624A220 from hkp server keyserver.ubuntu.com
gpg: keyserver timed out
gpg: keyserver receive failed: keyserver error
X says:

July 4, 2009 at 7:59 am

I am unable to do this.
Please see error below. Any help would be appreciated.
Thanks.

~$ sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com FE85409EEAB40ECCB65740816AF0E1940624A220

Executing: gpg –ignore-time-conflict –no-options –no-default-keyring –secret-keyring /etc/apt/secring.gpg –trustdb-name /etc/apt/trustdb.gpg –keyring /etc/apt/trusted.gpg –recv-keys –keyserver keyserver.ubuntu.com FE85409EEAB40ECCB65740816AF0E1940624A220
gpg: requesting key 0624A220 from hkp server keyserver.ubuntu.com
gpg: keyserver timed out
gpg: keyserver receive failed: keyserver error
Harrison Freeman says:

September 23, 2009 at 11:09 am

I am unable to download the key. I get this error

sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95; gpg –export –armor 313D312748A22A95 | sudo apt-key add –

Executing: gpg –ignore-time-conflict –no-options –no-default-keyring –secret-keyring /etc/apt/secring.gpg –trustdb-name /etc/apt/trustdb.gpg –keyring /etc/apt/trusted.gpg –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95
gpg: requesting key 48A22A95 from hkp server keyserver.ubuntu.com
gpgkeys: HTTP fetch error 7: couldn’t connect to host
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
gpg: WARNING: nothing exported
gpg: no valid OpenPGP data found.
Harrison Freeman says:

September 23, 2009 at 7:09 am

I am unable to download the key. I get this error

sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95; gpg –export –armor 313D312748A22A95 | sudo apt-key add –

Executing: gpg –ignore-time-conflict –no-options –no-default-keyring –secret-keyring /etc/apt/secring.gpg –trustdb-name /etc/apt/trustdb.gpg –keyring /etc/apt/trusted.gpg –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95
gpg: requesting key 48A22A95 from hkp server keyserver.ubuntu.com
gpgkeys: HTTP fetch error 7: couldn’t connect to host
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
gpg: WARNING: nothing exported
gpg: no valid OpenPGP data found.
Victoria says:

October 24, 2009 at 9:20 pm

Thanks. Synaptic has stopped complaining.

I thought you might like to know I received this error.
—————————————-
Executing: gpg –ignore-time-conflict –no-options –no-default-keyring –secret-keyring /etc/apt/secring.gpg –trustdb-name /etc/apt/trustdb.gpg –keyring /etc/apt/trusted.gpg –recv-keys –keyserver keyserver.ubuntu.com 60D11217247D1CFF
gpg: requesting key 247D1CFF from hkp server keyserver.ubuntu.com
gpg: key 247D1CFF: public key “Launchpad PPA for OpenOffice.org Scribblers” imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
victoria@ubuntu-home:~$ gpg –export –60D11217247D1CFF| sudo apt-key add –
gpg: Invalid option “–60D11217247D1CFF”
gpg: no valid OpenPGP data found.
victoria@ubuntu-home:~$ gpg –export –armor 60D11217247D1CFF| sudo apt-key add –
OK
——————————————–
As Synaptic seems to have the key now, I don’t understand the error.

Thanks again,

Victoria
Victoria says:

October 24, 2009 at 5:20 pm

Thanks. Synaptic has stopped complaining.

I thought you might like to know I received this error.
—————————————-
Executing: gpg –ignore-time-conflict –no-options –no-default-keyring –secret-keyring /etc/apt/secring.gpg –trustdb-name /etc/apt/trustdb.gpg –keyring /etc/apt/trusted.gpg –recv-keys –keyserver keyserver.ubuntu.com 60D11217247D1CFF
gpg: requesting key 247D1CFF from hkp server keyserver.ubuntu.com
gpg: key 247D1CFF: public key “Launchpad PPA for OpenOffice.org Scribblers” imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
victoria@ubuntu-home:~$ gpg –export –60D11217247D1CFF| sudo apt-key add –
gpg: Invalid option “–60D11217247D1CFF”
gpg: no valid OpenPGP data found.
victoria@ubuntu-home:~$ gpg –export –armor 60D11217247D1CFF| sudo apt-key add –
OK
——————————————–
As Synaptic seems to have the key now, I don’t understand the error.

Thanks again,

Victoria
Craig says:

May 19, 2010 at 10:28 am

I get this error!

root@Geantuser:~# sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95; gpg –export –armor 313D312748A22A95 | sudo apt-key add –
Executing: gpg –ignore-time-conflict –no-options –no-default-keyring –secret-keyring /etc/apt/secring.gpg –trustdb-name /etc/apt/trustdb.gpg –keyring /etc/apt/trusted.gpg –primary-keyring /etc/apt/trusted.gpg –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95
gpg: requesting key 48A22A95 from hkp server keyserver.ubuntu.com
gpgkeys: HTTP fetch error 7: couldn’t connect to host
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
gpg: /home/geantuser/.gnupg/gpg.conf:138: invalid option
gpg: no valid OpenPGP data found.

line 138 is the correct proxy. without it the error isthe same but without the error about the proxy.
Craig says:

May 19, 2010 at 6:28 am

I get this error!

root@Geantuser:~# sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95; gpg –export –armor 313D312748A22A95 | sudo apt-key add –
Executing: gpg –ignore-time-conflict –no-options –no-default-keyring –secret-keyring /etc/apt/secring.gpg –trustdb-name /etc/apt/trustdb.gpg –keyring /etc/apt/trusted.gpg –primary-keyring /etc/apt/trusted.gpg –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95
gpg: requesting key 48A22A95 from hkp server keyserver.ubuntu.com
gpgkeys: HTTP fetch error 7: couldn’t connect to host
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
gpg: /home/geantuser/.gnupg/gpg.conf:138: invalid option
gpg: no valid OpenPGP data found.

line 138 is the correct proxy. without it the error isthe same but without the error about the proxy.
Crypto says:

June 10, 2010 at 8:09 am

If you copy+paste the code from the article you MAY need to retype the “–” double dash. For some reason browser shows it as a special character.

Also – “sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95” should be enough to add the key and not show the “signatures couldn’t be verified” message
Crypto says:

June 10, 2010 at 4:09 am

If you copy+paste the code from the article you MAY need to retype the “–” double dash. For some reason browser shows it as a special character.

Also – “sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com 313D312748A22A95” should be enough to add the key and not show the “signatures couldn’t be verified” message