Lets say I have two internal hard disks, one for the operating system the other for backups. If i make sure to delete the MBR and partition table with
dd if=/dev/zero of=/dev/sda bs=512 count=2048 of the disk with the operating system to avoid the possibility of a boot sector virus.
If I reinstall in what ways can that second hard disk be used to cause an infection of the primary disk with the operating system?
I was reading thata boot sector viruses can even spread to other hard drives you have installed or physical media you have plugged into your system.
So what impact can a boot sector virus on a backup drive have on on the primary drive? And any other threats I may have missed? I guess it could effect USB sticks plugged in?