Description of problem:
If you attempt to do an preupgrade, but are unable to upgrade to a specific version, trying a different version fails as it retries the existing yum metadata found.
Version-Release number of selected component (if applicable):
Any version of preupgrade.
Steps to Reproduce:
1. From Fedora 12, try to upgrade to Fedora 15, which isn't supported it downloads successfully, aborts in anaconda correctly.
2. From Fedora 12, try to upgrade to Fedora 14, fails, preupgrade continues to try Fedora 15 metadata found in /var/cache/yum/preupgrade-fedora directory.
Fails to download correct Fedora metadata
Deletes metadata then fetches correct metadata for right version of Fedora.
Additional info: It seems to be in all preupgrade versions released.
This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle.
Changing version to '19'.
(As we did not run this process for some time, it could affect also pre-Fedora 19 development
cycle bugs. We are very sorry. It will help us with cleanup during Fedora 19 End Of Life. Thank you.)
More information and reason for this action is here:
Close it, preupgrade is obsoleted fedup is new kid in town