05-15-2012 11:18 AM - edited 05-15-2012 11:20 AM
fbackup is not really intended as a tool to restore a broken operating system. The better tool for that is Ignite/UX.
Would you be restoring to the same system or a different system?
In order to restore from fbackup you would have to have an operating system, at least a basic one, already installed on the system. Then you would have to restore your appropraite files from the fbackup backup tape. Once that has been done you would need to reboot to see what happens.