我一直在尝试升级一些软件包,因此我可以通过运行将 Ubuntu 18.04 升级到 Ubuntu 20.04,sudo do-release-upgrade
但它给了我:
Checking for a new Ubuntu release
Please install all available updates for your release before upgrading.
当我尝试更新/升级时,我运行:
sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
但它不起作用。