Several days ago, there were something wrong with my laptop computer in the result of virus in Windows OS. It's so vexing to solve this problem so I had no choice but to reinstall the OS. However, another issue came out, that is how to boot my Ubuntu, the Linux OS. Right, there are definitely some methods to fix the issue. We can use the software GrubForDos or directly the LiveCD to make it, but the simplest way is the second way, doesn't it?
Firstly, we put LiveCD into your CD-ROM drive, and then choose the computer to boot from CD-ROM drive, that's easy! When computer comes into the operating system, we enter "grub" command in the virtual terminal. After that we are using grub application. The concrete commands like the following.
sudo su # get root rights
grub # use grub application
find /boot/grub/stage1 # check the partition that the Linux is in
root (hdx,y) # point out the partition that the Linux is in
setup (hdx) # install the grub into the MBRthat is in /dev/hda
quit # quitthe grub application
reboot # reboot the system
The grub will work in the beginning after the computer rebooting, then we would have chance to choose which OS you want to start.
The contents of boot.ini file in my Windows are: