Ubuntu 18.04如何升级为Ubuntu 20.04

1.输入该命令按回车键：sudo apt update

2.输入该命令按回车键：sudo apt upgrade

3.按照提示输入Y按回车键

4.按照默认选项按回车键

5.输入该命令按回车键：sudo do-release-upgrade -c

6.输入该命令按回车键：reboot

7.输入该命令按回车键：sudo do-release-upgrade

8.按照提示输入y按回车键

9.按照提示按回车键

10.按照提示输入y按回车键

11.按照提示输入y按回车键

12.按照提示输入y按回车键

13.输入该命令按回车键：lsb_release -a