I am trying to follow steps described on Tor Project Debian Repository page to install latest LTS tor packages.
When I run the apt update command, I am getting following error
<omitted unrelated lines> Err:10 xenial Release server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none <omitted unrelated lines> Reading package lists... Done E: The repository ' xenial Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. My Ubuntu version is:
No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.4 LTS Release: 16.04 Codename: xenial 1 Answer
Xenial packages are no longer available at that repository because Xenial is EOL. Please upgrade to a newer, supported version of Ubuntu (e.g., 18.04, 20.04, etc).
You can either install a supported version of Ubuntu from a new download or, if you're feeling adventurous, you can follow the instructions in this answer to upgrade manually from the terminal.
