I have an Ubuntu OS installed on my laptop. I want to install Windows 7 as well to another disk partition (I will do it by recovering it from a special partition on my laptop).
After installing Windows, I want to recover my hard drive MBR to be able to load Ubuntu. I have a plan to use linux dd program:
1) (Before installing, perform this command in Linux) dd if=/dev/sda of=/home/user/mbr_backup bs=512 count=1
2) (after installing, load Ubuntu Live CD and launch this) dd if=/home/user/mbr_backup of=/dev/sda bs=512 count=1
3) Load Ubuntu on PC and re-configure the GRUB2 to be able start Windows
I need your advice, I want to be sure I won't damage the disk (it's partition table).