小编Shu*_*ham的帖子

我用 Ubuntu 18.04 启动了我的笔记本电脑（尝试 Ubuntu 而不安装方法）。然后，我运行了以下命令：

sudo add-apt-repository universe
sudo add-apt-repository multiverse
sudo add-apt-repository ppa:gezakovacs
sudo apt install unetbootin

我收到以下消息：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The …