Created attachment 417303 [details]
anaconda-tb file which was created during preupgrade process
Description of problem:
Upgrade from Fedora12 to Fedora13. After running yum install preupgrade and reboot - installation stops pretty soon and writes a anaconda-tb to filesystem.
Next reboot starts the fedora12 system without problems.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
*** This bug has been marked as a duplicate of bug 577260 ***