System Rescue CD to the.. rescue!

Here’s the scenario.. It’s 1 am and I have to shut down a critical linux server to relocate it in a rack to make room for new equipment. It should have been a 5 minute job.. but on powering up the server it refused to boot past printing the word ‘Grub‘ on the screen. This isn’t good.. this server is needed by a couple hundred thousand customers and rebuilding it wasn’t planned or scheduled.