安装 Linux 686 Kernel

从LiveCD安装后，kernel是386的。在terminal里面输入

sudo apt-get install linux-686

就会把686的kernel给装上了。当然这里需要联网。装完之后重启，在terminal输入

uname -a

查看，发现kernel是686的了。在下面这篇东西所引用的链接里面,可以知道386的kernel和686的kernel有什么区别。
from http://www.vmware.com/community/thread.jspa?messageID=419923

*HUGE SIGH OF RELIEF*

Well I think I got it working in my case. I needed to install the 686 kernel for things to work. Below are instructions on how to install Ubuntu server 6.06 as a guest virtual machine in Windows VMware workstation 5.5.1 using the Ubuntu 686 kernel. These instructions may also apply if you're not using VMware.

How to Install the Ubuntu 686 Kernel
====================================

1.) boot to the Ubuntu 6.06 server install cd. Choose 'Rescue a broken system.'

2.) when you get to the Rescue Operations screen choose "execute a shell in /dev/discs/disco/part1", this option may read a little differently on your system.

3.) Click continue if another screen appears.

4.) At the prompt, type: sudo apt-get install linux-686

5.) You will be asked if you want to continue, type: y

6.) The installation of the 686 kernel will begin. It looks like an internet connection is required so the install files can be downloaded from the ubuntu website.

7.) When the installation is done, type: exit

8.) You should be returned to the Rescue Operations screen. Choose the last option: reboot the system. Make sure you're not booting to the install cd!

9.) Give the system a few moments to boot-up. At last, you should be placed at the login: prompt.

10.) Celebrate!

Helpful websites:

http://ubuntuforums.org/showthread.php?t=85917
This is a very nice piece of documentation that explains all of the different Ubuntu kernel versions.

http://www.tuxme.com/node/544
This is the website that gave me the idea to try the 686 kernel. This specific document also talks about installing Ubuntu on laptops.

I really wish ubuntu would detect which kernel is best for a system. It's things like this that I think keep people away from linux. Linux definitely requires a lot of patience sometimes but I think it's worth it in the end.