sudo apt update && sudo apt dist-upgrade
sudo do-release-upgrade
没有直接升级路径。
支持的方法是将从16.04升级到18.04,然后再从18.04升级到20.04,
- 开始之前备份或VM快照。
sudo apt update
sudo apt upgrade // Prepare the 16.04 system for release-upgrade
do-release-upgrade // 16.04 to 18.04. The system will prompt you for a password
sudo apt update
sudo apt upgrade // Check for errors. Stop if there are errors.
do-release-upgrade -d // The -d is required until August 13, 2020 when 20.04.1
// is released. After that, DON'T use -d.