去年的事，现在整理一下。
1，Platform：我的电脑是ThinkpadT430, 预装的是WIN8系统。在HK买的花了我9KHK$,现在想还心疼。zzzz...
2，System：ubuntu 我使用的是U盘系统,版本是12.04，如何制作U盘系统，网上很多。而且，据我所知，要只有新于Ubuntu12.04的版本才支持Win8需要支持的BIOS模式，即UEFI模式。
3，BIOS：win8系统的启动，需要BOIS设置在UEFI的模式，这是一种与传统模式不一样的方式，可以找一些文档查阅，我也翻译了一篇，可以查阅：http://blog.csdn.net/koffuxu/article/details/8515059，同时还需要解决一个U盘系统在UEFI的模式下可以访问的问题，那就是进入BIOS设置，把Secure boot这个选项关掉。才能访问，为此我之前一直怀疑我的U盘系统有问题，弄了好几次，浪费了时间。
4，FLow：
1，让系统识别U盘系统，并顺利进入。
2，接下来就是常规的设置，请参考这个哥们的文章：http://www.linuxbsdos.com/2012/11/05/dual-boot-windows-8-and-ubuntu-12-10-on-uefi-hardware/。建议部分参考哈，因为我最后也准备加一下如文章所示的菜单，结果，差点搞残了我系统。系统我也不建议使用EasyBCD去整了，这个还是和UEFI模式和关。但我还强调一点，即文中所提到的第3点，请注意我的高亮提示。
3. Ubuntu Disk Partitioning Methods: This step
gives the options for partitioning the disk. The default, Install Ubuntu alongside Windows 8, will overwrite Windows 8′s boot loader in the
Master Boot Record (MBR), which is not what we want. While it also sets up a dual-boot system, it has disadvantages that you do not want to deal with. And you definitely don’t want to choose Replace
Windows 8 with Ubuntu. The option you want,
is the last one – Something else. Selecting that and clicking Continue will
take you to the Advanced Partitioning Tool.
3，顺利安装之后，能顺利进入Ubuntu12.04，但不能进入WIN8系统，因为之前的GRUB引导界面没有了。通过进入U盘Ubuntu，安装boot-repair工具，执行boot-repair
参考这哥们的文章：http://whoochee.blogspot.jp/2012/12/uefi-ubuntu-boot-along-with-win8.html
5，EasyBCD引发的错误，Win8系统MBR修复
故障描述：
安排了Ubuntu12.04,后面通过 boot-repair工具通过进入WIN8，后面又手发烧，安装了个EasyBCD2.2去建了一个进入的选项。
但EasyBCD可能还不能在UEFI的模式下操作，导致进入不了WIN8，最后在一家国外的网站找到解决方案，同时发现了WIN8一个磁盘管理的工具，我将用它来把WIN8的那个盘分一半出来
from:
http://superuser.com/questions/460762/how-can-i-repair-the-windows-8-efi-bootloader
After 6 hours of struggling, I managed to fix my Windows 8 boot issue.
Today, after a usual restart, I got the message MBR not found or similar to that, I dont remember any more. I tried bootrec commands, Windows automatic repair (it couldnt find any installed Windows), a million other ways and nothing.
The problem was when I executed bootrec /rebuildbcd it went normaly, and then when I had to enter yes if I want to save the configuration, I got the message, the file is not accessible because it is used by a another process.
After hours of mind cracking, I have finally solved it.
In this order...
First, I booted the easeup partition master and FORMATED the system reserved volume which I assigned as active later (in which my boot folder was). When I rebooted I got an error NTLDR missing.
Then I booted in Windows recovery, opened a command prompt and entered bootrec /fixmbr, /fixboot, /scanos, /rebuildbcd(which now executed fine :] )
I exited cmd and clicked on automatic repair.
Then, I was able to select Windows 8. When I rebooted, I could see the Windows 8 logo.
祝你好运！