解决Ubuntu升级版本时的错误"Please install all available updates for your release before upgrading"

错误

当执行

do-release-upgrade 

进行Ubuntu 版本升级时,有时会出现错误:

Please install all available updates for your release before upgrading

解决办法

执行以下命令

sudo apt-get update
sudo apt-get upgrade -y
sudo apt-get dist-upgrade
sudo do-release-upgrade