Since last week I failed to install two different packages (mariadb-server & xorg-x11-drv-synaptics) receiving this error-message:
Error unpacking rpm package 1:mariadb-server-10.0.15-4.fc21.x86_64. error: unpacking of archive failed on file /usr/lib64/mysql/INFO_BIN: cpio: rename
Both packages had already been installed on my F21, in case of the synaptics-driver it simply failed to be updated whilst mariadb-server had been removed and afterwards been installed again.
This tutorial dealt with this issue, saying that it would have to do with "xattr's immutable flag". However, the described steps to resolve this problem have yet not been helpful on my system :(