Ubuntu 跨版本升级
sudo sed -i 's/bionic/focal/g' /etc/apt/sources.list
sudo apt update && sudo apt dist-upgrade
Ubuntu 跨版本升级
https://celaraze.com/2021/08/18/upgrade-ubuntu-major-version/
sudo sed -i 's/bionic/focal/g' /etc/apt/sources.list
sudo apt update && sudo apt dist-upgrade