Verification public key missing during Debian security update

Verification public key missing during Debian security update

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 * Author  : Samson * Date    : 11/02/2014 * Test platform: *              3.13.0-24-generic *              GNU bash, 4.3.11(1)-release  * *******************************************************************/

Add the Security Update of Debian to the update source configuration file of the system:

V0id @ v0id/etc/apt/sources. list. d $ sudo vim official-package-repositories.list

Deb http://security.debian.org/wheezy/updates main contrib non-free

Use apt-get to update the source:

V0id @ v0id/etc/apt/sources. list. d $ sudo apt-get update

An error occurred while updating the result. The error message is as follows:

Reading the package list... complete

W: GPG error: http://security.debian.org wheezy/updates InRelease: unable to verify the following signature because there is no public key: NO_PUBKEY 8B48AD6246925553

The cause of the above error is that there is no signed Public Key. here we need to use the key management tool to download the missing public key:

Note that the last serial number below is the number of the public key missing in the preceding error;

V0id @ v0id $ sudo apt-key adv -- recv-keys -- keyserver keyserver.Ubuntu.com 8B48AD6246925553

Then, use apt-get update.