Hi, I've got a failing HD in my ibook which I'm getting replaced. I've used Carbon Copy Cloner to clone my current HD on to a firewire drive (used 'make bootable'). My question is when the fresh HD is in, can I just start from firewire using the alt button during startup? Do I need to install from system disks to the new HD first (I've lost them)? I ask because I tested the new data holding down 'T' during startup and got a floating firewire image with a battery icon. Then I used 'alt' and got a choice of disks. I'm thinking that with my new blank HD holding down 'alt' won't work with no system software to recognise it. Thanks in advance for any advice!