Select your boot-loading configuration.
选择引导加载配置。
If you have multiple operating systems installed on your server, you need to select which one you want from the boot loader menu.
如果服务器中安装了多个操作系统，您需要从引导加载程序菜单中选择需要引导的操作系统。
You can load as many operating systems as your thumb drive can hold and select between them at boot.
你的U盘能装多少你就能负荷多少操作一同，还可以启动时在它们直接选择。
When your computer reboots, select Ubuntu at the boot screen.
当您的计算机重新启动时，在启动屏幕上选择ubuntu。
There are a lot of guides around on wikis and forum posts that coherently walk you through manually editing your GRUB boot file to select the OS – just try Google.
在维基和各种论坛里，很多帖子给出了方法，号称能够让你条理清晰的手动更改你的GRUN启动文件从而达到选择默认操作系统的目的——去Google一下遍地都是。
You'll then see a second boot screen; press your Enter key to select the default.
然后，您会看到第二个开机画面，按下回车键来选择默认。
You'll then see a second boot screen; press your Enter key to select the default.
然后，您会看到第二个开机画面，按下回车键来选择默认。
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