Description of problem:

I downloaded F7 DVD and selected update option

System tried to boot old fc6 image at first (grub.conf default wrong)

I selected the fc7 in the grub menu and it still would not boot.

I booted the DVD in rescue mode and edited the /boot/grub/grub.conf so default
was 1 instead of 0

Tried to boot - still Kernel panic. Seems to be not finding my volume groups,
even though the volume groups are recognized fine in rescue mode.

Version-Release number of selected component (if applicable):

F-7-DVD.iso as downloaded a few hours ago. Checkmedia was run and it was OK

How reproducible:

Unfortunately, too reproducible

Steps to Reproduce:
1. install F7 as an update to uptodate FC6
2. boot
3.
  
Actual results:

Kernel panic - not syncing...


Expected results:

Clean boot

Additional info:

I took photos of my screen. Some data has run off the top, but I can enter what
you need.

At the top of my last screen is:

mdadm:/dev/md1 has been started with 2 drives.
Scanning logical volumes
  Reading all physical volumes. This may take awhile...
  No volume groups found
Activating logical volumes
  Volume group "rootvg" not found
Trying to resume from /dev/md1
No suspend signature on swap, not resuming.
...
...
Kernel panic