Thought i would post this as if this happens to your PS3 it will cost you £120.00 if SONY fix it for you.
A friend of mine ask me if i could fix his ps3 for him as, as soon as he turns the ps3 on, a message saying hard drive corrupted comes on the screen, nothing will play control dont work just this message. So any way i found out how to do it could save you a lot of money.
Step 1
Put your PS3 in Standby Mode.
The first thing your going to want to know is your model number. It can be found on the back panel of the PS3 on the serial number label, and it will begin with CECH. Example - Serial: XXXXXXXXXXXX-CECHXXX -
For models: CECHA01, BO1, E01, E01MG, G01, H01, H01MG, K01, LO1, AND P01, it will have a power switch on the back. Flip it off then back on and you will have a solid red indicator light on the front.
For models: CECH-2001A and 2001B, press the power button on the front until the indicator light turns red. If all else fails unplug the power cord and plug it back in.
Step 2
Time to enter Safe Mode.
Press and hold your finger over the power button on the front until you hear three beeps and the indicator light goes back to red. Then release the button. (The second you touch it you will hear a beep, that's the first beep. Five seconds later a second beep, another five seconds the third and final beep will sound then the indicator light will return to red.)
Step 3
Press and hold your finger over the power button again until you hear a quick double beep. The release the button. (The second you touch it you will hear a beep, that's the first beep. Five seconds later a second beep, another five seconds you will hear the double beep.)
Step 4
Connect controller to PS3 screen.You will then see this screen. "Connect the controller with the USB cable, then press the PS button".
Step 5
Connect the USB cable to the USB port on the front of your PS3 and the top of your game controller, (between the left and right bumpers). Then Press the PS button in the center of the controller.
Step 6
Safe Mode options screen. you will see the this screen
Step 7
-REMINDER: -BY DOING THE FOLLOWING ALL OF YOUR DATA ON YOUR PS3 WILL BE LOST, YOUR ONLINE STATS ARE ON THE NETWORK SO YOU WILL GET THAT STUFF BACK, INCLUDING GAMES AND ADDONS YOU BOUGHT FROM THE PSN.-
Select option number 5. (Restore PS3 System). Then select yes to perform step.
Step 8
You will then see this screen. "The hard disk's file system is corrupt and will be restored."
Step 9
The PS3 will then restart. You will see many different languages, all that is is saying is, "Connect the controller with the USB cable, then press the PS button". Press the PS button and set your settings when it finishes it will start up and its fixed!
Subject: PS3 Hard Drive Corrupted 
