I want to do the following - Save the current state of my linux OS(centOS6.5). Do some changes (more specifically inject a fault and test some service to check how it behaves when that particular type of a fault occurs.) Then restore the system back to the saved state. I am not able to figure out how to do this on a linux system. I have a machine with centOS 6.5 with an ext4 filesystem.Also this is a physical server and not a virtual machine.Any ideas or suggestions?
Creating a snapshot of a linux system
linux;snapshot