How does Debian's missing verification public key solve the security update problem?

Author: Samson

Date: 11/02/2014

Test platform:

3.13.0-24-generic

GNU bash, 4.3.11(1)-release

Add Debian security updates to the system's update source configuration file:

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

As a result, an error occurred during the update process. The error message is as follows:

Reading package list... Complete

W: GPG error: http://security.debian.org wheezy/updates InRelease: The following signature cannot be verified because there is no public key: NO_PUBKEY 8B48AD6246925553

cause

Note that the last series of consecutive numbers below is the number of the public key missing in the error above;

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

Then, there will be no problem using apt-get update.

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