Then I have followed the steps - steps are done. But there is a problem when doing backports. Here is an error message
sudo apt full-upgrade -t parrot-backports
Reading package lists… Done
E: The value ‘parrot-backports’ is invalid for APT::Default-Release as such a release is not available in the sources
Thanks for reply. I’ve done this command sudo apt update && sudo apt full-upgrade and it worked. But when I use this command sudo apt full-upgrade -t parrot-backports
I got an error message
E: The value ‘parrot-backports’ is invalid for APT::Default-Release as such a release is not available in the sources
All packages are up to date.
Reading package lists… Done
E: The value ‘parrot-backports’ is invalid for APT::Default-Release as such a release is not available in the sources
When i run it (apt update && apt full-upgrade) This command why there is no upgrade almost package and other already installed and upgraded. And there is problem on this command “sudo apt full-upgrade -t parrot-backports” message eror (E: The value ‘parrot-backports’ is invalid for APT::Default-Release as such a release is not available) But i change sources.list use repo china and singapore there is package and upgraded. Does this happen because the repos from Indonesia (Datautama PT. Data Utama Dinamika) Are not updated?