vboxadd.sh: failed: Look at /var/log/vboxadd-install.log to find out what went wrong. vboxadd.sh: failed: Please check that you have gcc, make, the header files for your Linux kernel and possibly perl installed.. /opt/VBoxGuestAdditions-5.1.2/init/vboxadd: line 451: semanage: command not found make KBUILD_VERBOSE=1 CONFIG_MODULE_SIG= -C /lib/modules/2.6.32-642.3.1.el6.x86_64/build SUBDIRS=/tmp/vbo
