How to update from unsigned Repo
How to update from unsigned Repo
You're encountering an issue where Kali's repositories are marked as unsigned, preventing the update. The `--allow-unauthenticated` flag didn't help either. Try updating manually with `sudo apt-get update` and then install the packages one by one to see if that resolves the problem.
Review the second response carefully. This process involves risks; authentication and signing are necessary for safety. Proceed at your own discretion.