检查是否安装了TFTP服务器包。

Check whether the TFTP server package is installed. If not, install it now, as shown in Listing 4 below.

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如何确定我的系统上是否安装了某个修复程序？

How do I determine if a fix is installed on my system?

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检查是否安装了DHCP服务器包。

Check whether the DHCP server package is installed. If not, install it now, as shown in Listing 1 below.

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