[Fedora-xen] "No drive found, to create filesystem"...problem with fedora 6 paravirtualization

Hi, i've installed fc6xen, the service of XEN and the Domain0 starts correctly. I've tried to install another fedora6 paravirtualized and i've selected installation in 1 large file (xen1) with 5 GB of space limit in /home/b4y path. The installation in VNC starts correctly, but in the window to create the partition structure, not appears the virtual hard drive. The installation stops with the message " no drive found, to create filesystem...". Help me, please!!! Best regards Vania Toma