I have a software RAID-5 array (using software RAID 0.90) that was running
under RH 6.1.  I tried an NFS upgrade to 6.2 this evening and it froze
after I picked the "select packages to upgrade" option and clicked next.

The RAID device is defined at /dev/md3, I currently have no other /dev/mdXs
defined.

The errors on the tty were the following (I retyped these after copying
them down to paper by hand so I apologize if there are any typos):

File "/usr/lib/python1.5/site-packages/gtk.py", line 125, in __call__
	ret=apply(self.func,a)
File "/usr/lib/anaconda/gui.py", line 340, in nextClicked
	next=self.currentScreen.getNext()
File "/usr/lib/anaconda/iw/examine.py", line 19, in getNext
	self.todo.upgradeFindPackages(self.root)
File "/usr/lib/anaconda/todo.py", line 722, in upgradeFindPackages
	fstab.readFstab('/mnt/sysimage/etc/fstab',self.fstab)
File "/usr/lib/anaconda/fstab.py", line 705, in readFstab
	fields[2], raidByDev[int(fields[0][7:])])

The last line is what makes me think it was related to the software RAID-5
array.  I managed to upgrade by just doing rpm -Fvh *.rpm (more or less)
but thought I'd post this in case there was anything to it.