2008/5/14 Zoltan Boszormenyi <zboszor@freemail.hu>:
Hi,

I tried preupgrade without success, but at least it didn't destroy
my old installation. :-)

I started package downloads with preupgrade 0.9.3-1, then killed it
when 0.9.3-2 came out, upgraded and continued downloading.
Total download size was about 6.2 GB, I have many huge games
installed from Fedora 8 Everything. However, this version hung
at the last download phase, which was fixed by 0.9.3-3.

I think it has something to do with preupgrade looking for a ".treeinfo" file, which wasn't available on my mirror. I've fixed it by pointing the preupgrade configuration to a mirrorsite that had the treeinfo file.
 

This version offered to reboot into upgrade finally, which I did.
It booted into anaconda upgrade, which detected my partitions correctly.
The problem that made the upgrade unsuccessful was that Anaconda
doesn't pull the network settings from my old installation and I have
an ADSL connection with a dump ADSL modem, not a router.

Does anaconda need an internet connection after preupgrade has downloaded all the relevant files for your upgrade?
 
Another small bug I've found which could be handled better is that the kernel from Fedora 9 swapped my sda and sdb disks (I've got a SATA and an IDE disk in my system), and anaconda isn't able to find the stage2 image (there's a prompt asking for the correct disk, but none of the options work).

Kj