sudo apt-get install gnome-shell Reading package lists... Done
Building dependency tree
Reading state information...Done
Package gnome-shell is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or is only available from another source
E: Package 'gnome-shell' has no installation candidate
一遍又一遍地重复相同的消息，这是全新安装
答案1
你跑過sudo apt-get update嗎？
您需要在全新安装时执行此操作，否则它不知道东西在哪里。