Fedora 12 Write Partition to Hard Disk

   Then the Fedora 12 prompt you with "Writing storage configuration to disk"... What this box say is that the Fedora 12 system installation going to write partition and formatting your system hard disk as you configure on previous screen... and if you continue with write change to disk, all the data on the hard disk will be lost.  Click on "Go back" button to reconfigure partition layout or if you really sure that you want to proceed to install Fedora 12 just click on "Write change to disk".

Fedora 12 Write Partition to Hard Disk Screenshot

Fedora 12 Writing storage configuration to disk

The partitioning options you have selected will now be written to disk.  Any data on deleted or reformatted partitions will be lost.

Action:  Click on 'Write changes to disk' button to proceed with the partitioning and formatting hard disk in order to prepare for Fedora 12 operating system.