trouble installin FC5

[hicham]

hello
 I'm having trouble installin FC5 ,  I partionned the SATA hard disk
with partition magic with ntfs and ext3 partitions
after choosing keyboard language, I get this message :

"The partition table on device mapper /isw_hgbhgbbcd_volume0 was
unreadable to create new partitions, it must be initialized causing
the Loss of ALL DATA on this drive
This operation will override any previous installation choices about
which drives to ignore
would you like to initialize this drive erasing ALL DATA "


hicham.