[Solved] Mysql tmp Error : Can’t create/write to file ‘/tmp/MYkbo3Bl’ (Errcode: 13)

Mysql Error : ERROR 1 (HY000): Can’t create/write to file ‘/tmp/MYkbo3Bl’ (Errcode: 13) When I tried moving a wordpress website from one server to another I stuck with a big problem. All the posts from the home page simply disappeared. On the admin section of wordrpess all post section give 0 posts to display. But