In February last year, I built a new PC from parts. Fast foward 16 months, and I'm repeatedly cleaning malware infections from Windows 7. I decided to try Ubuntu on my PC.
My PC has hardware raid. The hardware raid has two 500 GB disks set up with RAID-1 mirroring. I have a 100GB partition with Windows 7 and a 400GB unformatted partition.
However, when I try to install Ubuntu 11.04, on the "Allocate drive space" screen, it shows only the 100GB partition with Windows 7. It's as if the 400GB partition doesn't exist. BTW, the Windows 7 partition is labelled /dev/sda. The logical drives for Windows 7 are /dev/mapper/pdc_bbifbfdfdi and /dev/mapper/pdc_bbifbfdfdi2
What do I need to do in order to install Ubuntu on my 400GB partition?