Edit File: grub2.conf
# these have execstack, and break under selinux -b /usr/bin/grub2-script-check -b /usr/bin/grub2-mkrelpath -b /usr/bin/grub2-fstest -b /usr/sbin/grub2-bios-setup -b /usr/sbin/grub2-probe -b /usr/sbin/grub2-sparc64-setup