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Ubuntu 18.04 add gpg key failed with gpg-agent not found error

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How do I start GPG agent in Ubuntu?

In case you want to use the included Secure Shell Agent you may start the agent using: gpg-connect-agent /bye The usual way to run the agent is from the ~/. xsession file: eval $(gpg-agent --daemon) If you don't use an X server, you can also put this into your regular startup file ~/.

What is GPG agent?

gpg-agent is a daemon to manage secret (private) keys independently from any protocol. It is used as a backend for gpg and gpgsm as well as for a couple of other utilities. The agent is automatically started on demand by gpg , gpgsm , gpgconf , or gpg-connect-agent .

What is GPG error?

The GPG error should rather be treated as a warning against potential package installation from unknown sources. Therefore, the GPG error message prompts the user to verify and manually import the third party signature belonging to relevant package developer.

How install GPG file in Ubuntu?

To do this, run terminal and type in " sudo apt-get install gnupg " and follow through with any prompting you may get. Install a GUI for GPG. To install a popular GUI, go to the terminal and type in " sudo apt-get install kgpg ". Follow through with any prompting you may get.


trying to migrate our base image to the stable Ubuntu 18.04, when we try to add our gpg key, getting this error:

root@77ff14f29cab:/# apt-key add apt-key.gpg 
gpg: failed to start agent '/usr/bin/gpg-agent': No such file or directory
gpg: can't connect to the agent: No such file or directory
gpg: failed to start agent '/usr/bin/gpg-agent': No such file or directory
gpg: can't connect to the agent: No such file or directory