- Can’t find original source atm..
- Back up MBR: http://wiki.linuxquestions.org/wiki/Dd#Backing_up_your_Master_Boot_Record_.28MBR.29.
- Removing the MBR/partition information
Working on a remote install machine (PXE booting) sometimes need to remove the MBR that is on the current machines hard disk so that on reboot the machine tries to boot from net.
In Linux the following command can be executed to delete the MBR (Don’t do this unless you are very sure you want to do it):
bash# dd if=/dev/zero of=/dev/hda bs=512 count=1
Another method is required for windows installations.