我正在尝试从 16.04.6 升级到 18.04,但我一直收到消息:
Please install all available updates for your release before upgrading.
但没有任何更新需要安装。我已执行以下命令:
sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo do-release-upgrade
但我仍然收到该消息。我还能做什么来升级?
我正在尝试从 16.04.6 升级到 18.04,但我一直收到消息:
Please install all available updates for your release before upgrading.
但没有任何更新需要安装。我已执行以下命令:
sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo do-release-upgrade
但我仍然收到该消息。我还能做什么来升级?