U盘修复ubuntu系统
首先，当然是准备一个1G以上容量的U盘，用来制作可启动U盘;
其次，到官网上下载Ubuntu desktop镜像文件。Ubuntu Desktop镜像一般700多兆，从而可以把它写到1G大的U盘上，可以从Ubuntu官网下载镜像文件。 U盘之家
用UltraISO将其写入U盘，制作成可启动的U盘。自作完成后重启电脑，选择从U盘启动。
由于你写入U盘的实际上是个像光盘一样的Ubuntu安装盘，所以进入U盘Ubuntu后，你可以选择不安装而直接试用体验Ubuntu，这也是本方法的关键所在，利用LiveCD，我们可以暂时进入系统，借以修复原有系统!下面就跟着来看具体的步骤吧： U盘之家
进入Ubuntu系统后，启动命令终端，输入如下指令，在线安装lilo和mbr： 优盘之家
Ubuntu@ubuntu:~$ sudo apt-get install lilo U盘之家
Reading package lists... Done U盘之家
Building dependency tree U盘之家
Reading state information... Done 优盘之家
The following extra packages will be installed:
mbr www.upan.cc
Suggested packages: U盘之家
lilo-doc U盘之家
The following NEW packages will be installed: 优盘之家
lilo mbr
0 upgraded, 2 newly installed, 0 to remove and 408 not upgraded. 优盘之家
Need to get 413kB of archives. www.upan.cc
After this operation, 1,315kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 lucid/main mbr 1.1.10-2 [23.0kB] 优盘之家
Get:2 lucid/main lilo 1:22.8-8ubuntu1 [390kB]
Fetched 413kB in 3s (124kB/s)
Preconfiguring packages ...
Selecting previously deselected package mbr.
(Reading database ... 129801 files and directories currently installed.) 优盘之家
Unpacking mbr (from .../archives/mbr_1.1.10-2_i386.deb) ...
Selecting previously deselected package lilo.
Unpacking lilo (from .../lilo_1%3a22.8-8Ubuntu1_i386.deb) ... www.upan.cc
Processing triggers for man-db ...
Setting up mbr (1.1.10-2) ...
Setting up lilo (1:22.8-8Ubuntu1) ...
WARNING: kernel & initrd not found in the root directory (/vmlinuz & /initrd.img) 优盘之家
WARNING: Do NOT reboot or LILO may fail to boot if your kernel+initrd is large. www.upan.cc
WARNING: Please read /usr/share/doc/lilo/README.Debian www.upan.cc
Ubuntu@ubuntu:~$
安装过程中，会得到如下lilo的配置提示，按OK就行了： www.upan.cc
Package configuration U盘之家
U盘修复ubuntu系统：http://www.upan.cc/technology/technics/6983.html
