System runs F16 fine. Has boot partition on /dev/sda1, Standard LVM created by some Fxx install on /dev/sda2 with a swap and root logical volumes. Updated from xx through 16 with yum update with no problems ever.
Going to F17 via DVD I get "your current installation cannot be upgraded". Looking through the several consoles I see a message of Product None Release None or something like that and on another a couple of messages with 0 logical volumes available on my volume group.
Tried preupgrade from F16 but /boot only has 200 MB and thus won't go. Forcing stage2 doesn't work as I'm behind transparent firewall and need to get a fixed IP to be able to get out and when booting under dhcp I get a different one that can't get out.
Stuck, anyway out of this?