Description of problem:

Using preupgrade to upgrade my fully-updated F10 system to F11, I get the following message during the preupgrade reboot:

"Upgrade root not found"
"The root for the previously installed system was not found."

I first tried this the week after F11 was released, and at least one each week since.  The observed behaviour is consistent.

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


How reproducible:

Every time!

Steps to Reproduce:
1. Run preupgrade as root
2. reboot
3. Observe anaconda messages
  
Actual results:

"Upgrade root not found"

Expected results:

Expect / to be found!

Additional info:

During my F9->F10 upgrade, done using yum, anaconda recommended I convert all my storage to LVM, so I did, and I have not touched the LVM configuration since.

A: F10 fstab
------------
#
# /etc/fstab
# Created by anaconda on Mon Dec  1 04:02:35 2008
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or vol_id(8) for more info
#
UUID=91229076-8038-4fd9-ac70-a897a38193cc /                       ext3    defaults        1 1
UUID=9809bfed-9a0f-49b9-a797-4252cb170045 /boot                   ext3    defaults        1 2
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
UUID=be5c0d54-e813-446f-81e2-52bfff08de89 swap                    swap    defaults        0 0
/dev/cdrom              /media/cdrom            auto    noauto,ro,user  0 0

B. Output from F10 mount:
-------------------------
# mount
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda1 on /boot type ext3 (rw)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
gvfs-fuse-daemon on /home/bobc/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=bobc)

C. grub.conf
------------
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
#          initrd /initrd-version.img
#boot=/dev/sda
default=1
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Upgrade to Fedora 11 (Leonidas)
	kernel /upgrade/vmlinuz preupgrade repo=hd::/var/cache/yum/preupgrade stage2=hd:UUID=9809bfed-9a0f-49b9-a797-4252cb170045:/upgrade/install.img ks=hd:UUID=9809bfed-9a0f-49b9-a797-4252cb170045:/upgrade/ks.cfg
	initrd /upgrade/initrd.img
title Fedora10 (2.6.27.25-170.2.72.fc10.i686)
	root (hd0,0)
	kernel /vmlinuz-2.6.27.25-170.2.72.fc10.i686 ro root=UUID=91229076-8038-4fd9-ac70-a897a38193cc vga=795 rhgb quiet
	initrd /initrd-2.6.27.25-170.2.72.fc10.i686.img
title Fedora10 (2.6.27.24-170.2.68.fc10.i686)
	root (hd0,0)
	kernel /vmlinuz-2.6.27.24-170.2.68.fc10.i686 ro root=UUID=91229076-8038-4fd9-ac70-a897a38193cc vga=795 rhgb quiet
	initrd /initrd-2.6.27.24-170.2.68.fc10.i686.img
title Fedora10 (2.6.27.21-170.2.56.fc10.i686)
	root (hd0,0)
	kernel /vmlinuz-2.6.27.21-170.2.56.fc10.i686 ro root=UUID=91229076-8038-4fd9-ac70-a897a38193cc vga=795 rhgb quiet
	initrd /initrd-2.6.27.21-170.2.56.fc10.i686.img