低配置电脑安装
内存需求
Installing Ubuntu on any system requires at least 32Mb of memory: The text-based installer included with the alternate (install) CDs needs that much space to run reliably. Smaller memory configurations run into problems, and while not impossible, it can be very difficult to complete an installation with less than the minimum RAM requirement.
在任何系统上安装Ubuntu至少需要32Mb内存：包含在alternate (install) CDs的基于字符的安装程序需要这些空间来可靠运行。更小的内存配置可能会遇到问题，虽然不是不可能，但如果内存小于最低的需求，要完成安装十分困难。
Depending on the hardware requirements, you can expect a sparse Ubuntu system to boot to a graphical desktop on anywhere from 19Mb to 54Mb. That requirement will fluctuate with the system demands, and increase while the system is active. Swap space is crucial to low-memory machines, so don't be stingy when setting up your system.
由于硬件需求，你可以期望一个瘦小的Ubuntu系统在任何内存从19Mb到54Mb的地方启动。这个需求会随着系统的需求面浮动，当系统活跃的时候会增加。交换分区对于低内存的机器十分重要，所以当设置系统的时候别小器。
处理器
There is no practical speed requirement, although a slower processor will take more time to finish installing. Some Pentium machines will take hours to complete, simply because the CPU takes longer to finish. As a general benchmark, a 75Mhz machine finishes a command-line installation of Ubuntu 7.04 in about four hours, and a 120Mhz machine finishes in perhaps an hour less than that. 200Mhz and faster machines will see a still stronger improvement.
对处理器的速度没有什么实际的需求，虽然低速度的处理器将要花更多的时间来完成安装。仅仅是因为CPU花了太多的时间，一些Pentium机将要花费几个小时来完成安装。根据通常的基准测试，一台75Mhz的机器要4个小时来完成基于命令行的Ubuntu 7.04的安装，一台120Mhz的要比它少用一个小时。200Mhz或是更快的机器将会有更强的提升。
If you do decide to install Ubuntu on a legacy machine, be patient. There will come times when you think the machine has stopped or is hung, when in fact it's still moving, albeit at a very slow rate.
如果你决定在一台老式的机器上安装Ubuntu，要有耐心。可能会出现好几次这样的情况：当你认为机器已经停止或挂起，其实它正在运行，虽然速度很慢
磁盘空间需求
Disk space on an absolutely minimal installation can be reduced to as little as 500Mb. A fresh and clean server installation of Ubuntu 7.04 generally takes only 300Mb, although there will be minor variations on account of hardware differences.
磁盘空间在绝对最小安装的情况下可以减少到500Mb。虽然对于不同的硬件会有很小的变化，一个干净的Ubuntu 7.04 服务器的安装通常只需要300Mb。
其它硬件上的考虑
These instructions assume you will have a working Internet connection and access to the universe and multiverse repositories. Configuring your hardware is not included on this page.
这份指南假设你有一个可用的互联网连接并且可以访问 universe and multiverse repositories.它不包括对你硬件的配置。
安装Ubuntu Server
The server version of Ubuntu is a sparse command-line system, without any graphical elements. It's a text-only version of what lies underneath all the advanced graphical elements. It's also the starting point for a minimal installation.
Ubuntu服务器版是一个精减的命令行系统，没有任何图形元素。它是一个位于高级图形元素之下的纯文本版本。它是我们最小化安装的起点。
Ubuntu 6.06
To install a base system, boot from the alternate (install) CD and choose "Install a server."
Follow the prompts to complete installation.
启动alternate(install)CD，选择"Install a server"。按提示完成安装。
Ubuntu 6.10, 7.04, or 7.10
To install a base system, boot from the alternate (install) CD and choose "Install a command-line system."
Follow the prompts to complete installation.
启动alternate(install)CD，选择"Install a command-line system."。按提示完成安装。
增加软件仓库
更改源
Once the server install is complete, you will probably want to edit your UbuntuHelp:sources.list file. 当安装好Ubuntu服务器版後，你可能需要编辑你的UbuntuHelp:sources.list文件。
sudo nano /etc/apt/sources.list
Uncomment all official repositories by removing # at the beginning of the line. Do not uncomment the narrative portions of that file; in other words, where you see a double hash mark (##) leave those lines alone. 删除每一行开始的#号来消除对官方软件仓库的注释。不要消除文件里描述部分的注释，即以两个#号（##）开始的行。
更新和升级你的系统
Now you should update your system. Return to the command line and type: 现在你应该更新你的系统。回到命令行输入：
sudo aptitude update
It's probably also a good idea to upgrade your system at this point. Use this command to upgrade your system: 这时升级你的系统也是个不错的主意。用这个命令升级你的系统。
sudo aptitude upgrade (or, for Gutsy: sudo aptitude safe-upgrade)
Now you should be ready to install a window manager and some programs. 现在你已经准备好了来安装窗口管理器和一些程序。
