After upgrade to 20.04 I get the following W warnings:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up-to-date.
W: http://gb.archive.ubuntu.com/ubuntu/dists/bionic/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
W: http://gb.archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
W: http://gb.archive.ubuntu.com/ubuntu/dists/bionic-backports/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
W: http://security.ubuntu.com/ubuntu/dists/bionic-security/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
keys for these bionic/InRelease repos are not listed in the keys when I list them so I can't delete them if I don't know the key digits to delete.
I get the same error preventing me from using synaptic to manage packages.
I would be grateful for suggestions as to how to solve this.
Ideally what to type into terminal.
Thank you
