What if the verification public key is missing during the Debian security update

This article is to share with you what to do when you update Debian security without verifying the public key. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Author: Samson

Date: 11/02/2014

Test platform:

3.13.0-24-generic

GNU bash, 4.3.11 (1)-release

Add Debian's security update to the system's update source profile:

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. 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

The reason for the above error is that there is no signed public key. Here, we will use the key management tool to download the missing public key:

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

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

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

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