I`m using FC8. some how i get bug report when i want ti update or install new software . i attach with the this report so you can look ahead how this come get problem. I refer from some web to update yum for better speed and find a fastest mirror. Some how i always type "yum clean all" but when i update yum same error come out. Please check whether my yum problem or yum config has wrong. Thanks
Created attachment 291540 [details] A report Bug
*** This bug has been marked as a duplicate of 426975 ***