Expert install instructions instruct to install unavailable debian-keyring package
Our expert install instructions instruct users to install the debian-keyring
package by running the following command:
sudo apt install debian-keyring
However, running that command results in the following error:
Package debian-keyring is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'debian-keyring' has no installation candidate