Ps3 restarts when updating playstation home
To transfer the update data to your Play Station 3, save the file to a PS3 compatible storage device such as Memory Stick, Memory Stick Duo, USB drive or PSP.
Before starting, use your PC to create a folder named 'PS3' on the storage media or USB device.
Sony did an excellent job with the PS3 Recovery Menu.
Or do I have to have certain files / directory structure?