- 确保安装 update-manager-core这个包 如果没有安装执行以下命令
- sudo apt install update-manager-core
2.确保/etc/update-manager/release-upgrades这个文件的Prompt被设置为normar
此文件有三个可选项,nerver标识永不更新,normal表示正式版、lts表示只选择长期支持版本
- # Default behavior for the release upgrader.
- [DEFAULT]
- # Default prompting behavior,valid options:
- #
- # never - Never check for a new release.
- # normal - Check to see if a new release is available. If more than one new
- # release is found,the release upgrader will attempt to upgrade to
- # the release that immediately succeeds the currently-running
- # release.
- # lts - Check to see if a new LTS release is available. The upgrader
- # will attempt to upgrade to the first LTS release available after
- # the currently-running one. Note that this option should not be
- # used if the currently-running release is not itself an LTS
- # release,since in that case the upgrader won't be able to
- # determine if a newer release is available.
- Prompt=normal
3.执行
- sudo do-release-upgrade
ok,跟着命令走就好了