Problem CentOS installation fails with the message: “Unable to read package metadata. This may be due to missing repodata directory. Please ensure that your install tree has been correctly generated”. Solution 1 Add the corresponding repository server. In case of CentOS 6.5 64bit: http://mirror.centos.org/centos/6.5/os/x86_64/ Solution 2 See the following stackoverflow thread: http://stackoverflow.com/questions/21637068/unable-to-read-package-metadata-this-may-be-due-to-missing-repodata-directory