Save and restore MBR in Linux

Save and restore MBR in Linux: "The MBR or Master Boot Record is an area at the beginning of your hard drive. It is very important because it contains the partition table. There are also routine boot whose goal is to load the operating system. Backup your MBR does not really interest. Unless you intend to perform manipulations risky on your hard drive or install a new Boot Loader (Grub, Lilo ...) for examples. To make a backup of your MBR, run the following command as root and adapting /dev /sda depending on the path to your h"