下面将介绍如何将官方的Debian光盘添加到/etc/apt/sces.cles.list文件以减少包的下载。

确保将光盘插入CD-ROM驱动器并输入命令：

# apt-cdrom add

例如，如果我们正在添加Wheezy 镜像，将生成以下输出：

Using CD-ROM mount point /media/cdrom/
Identifying.. [6736485c3d92e1c9e5a024828c9283a2-2]
Scanning disc for index files..
Found 1 package indexes, 0 source indexes, 1 translation indexes and 0 signatures
This disc is called: 
'Debian GNU/Linux 7.5.0 _Wheezy_ - Official amd64 CD Binary-1 20140426-13:37'
Reading Package Indexes... Done
Reading Translation Indexes... Done
Writing new source list
Source list entries for this disc are:
deb cdrom:[Debian GNU/Linux 7.5.0 _Wheezy_ - Official amd64 CD Binary-1 20140426-13:37]/wheezy main

它将把下面的行

deb cdrom:[Debian GNU/Linux 7.5.0 _Wheezy_ - Official amd64 CD Binary-1 20140426-13:37]/wheezy main

添加到 /etc/apt/sources.list文件。