Recently I got sudo rpm -e postgresql-libs-8.1.23-1.el5_7.3 error: "postgresql-libs-8.1.23-1.el5_7.3" specifies multiple packages This is due to different versions (32 and 64 bit) of the same package being installed The fix is easy sudo rpm -e postgresql-libs-8.1.23-1.el5_7.3.i386 postgresql-libs-8.1.23-1.el5_7.3.x86_64