https://bugzilla.redhat.com/show_bug.cgi?id=882267
--- Comment #12 from Grégoire Paris postmaster@greg0ire.fr --- (In reply to Grégoire Paris from comment #11)
(In reply to Akira TAGOH from comment #10)
(In reply to Grégoire Paris from comment #9)
This issue is still present in Fedora 20.
If it still happens, that would means you have the certain reason that fontconfig couldn't migrate the old config files to new one. e.g. you already have one in both places, the permissions messed up to create/move directories and/or files, etc.
I'm not trying to shut it up completely, but trying it reasonably.
I'll check both directories. Is there any way I can run/debug the migration script ?
Oh and by the way, I did not migrate fedora from 19 to 20 (I lacked the disk space to do the migration), so I installed a brand new fedora, but I kept my old /home partition. Do you think your point is still valid ?