> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/handbook/di-2-zhang-an-zhuang-freebsd/2.10.-shi-yong-live-cd.md).

# 2.10.使用 Live CD

bsdinstall 的欢迎菜单（见[欢迎菜单](/handbook/di-2-zhang-an-zhuang-freebsd/2.4.-kai-shi-an-zhuang.md)）提供了选项 **Live CD**。这对那些仍在考虑 FreeBSD 是否适合自己的用户很有帮助，他们可以在安装之前测试一些功能。

在使用 **Live CD** 前应注意以下几点：

* 使用系统需要身份验证。用户名为 `root`，密码为空。
* 由于系统直接从安装盘运行，性能将明显弱于安装在硬盘上的系统。
* 此功能仅提供命令提示符，未提供图形界面。


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