My Answer To Why ps3 saying file system currupted?
Boot the system to the recovery menu, and restore it manually. However, there's a chance that all data on the system will get wiped, so keep that in mind. Boot it to the recovery menu by turning it off, then holding the power button down until it has beeped three times, and shut down. Then hold the power button down again until it beeps twice and then double-beeps. A message should come up on the screen telling you to connect a controller with a USB cable. Do so, then select "Restore Default Settings." When the process completes, reboot the console, then boot it to the recovery menu again and select "Restore File System." Reboot it and boot it to the recovery menu one last time, and select "Rebuild Database." Reboot the console, and see if it boots to the XMB (Home Screen)
The Recovery Menu Will Look Like This: