thalib Engineer/Designer

How to backup and restore HDD boot sector


Here I will explain how we will be backup and restore the boot sector of a running pc. In this example I will consider my hardisk is /dev/sda.

Backing up existing boot sector in /dev/sda hardrive

 dd if=/dev/sda of=bootsec.bin bs=512 count=1

Now to restore the boot sector to the hardisk use the following command.

 dd if=bootsec.bin of=/dev/sda bs=512 count=1