Hello, I was trying to install F17 using a live CD (which is the recommended download). This failed horribly. First I tried to partition automagically (after unchecking "use lvm") with the "replace existing linux systems" option but then changed my mind, went back, and check the "review layout" box. I reviewed and went ahead but the installer cradhed saying it could not refresh the partition map in the kernel. So I rebooted and tried partitioning again but this time the partitions created on previous run were left as "unknown" and additional partitions were created. To resolve issues I booted a different CD, wrote zeroes to the first sector, and then proceeded with F17 installation without issue. However, previously partitioned disk is a serious headache with f17 installer.
since you don't say what information is missing you are not goint to get it