Build and install RT kernel (patched) on rocky 8 or 9.4

xen-netfront, xen-blkfront cause issues during compilation (they are missing) so if the contents of the file /etc/dracut.conf.d/xen.conf is add_drivers+=" xen-netfront xen-blkfront " remove it: sudo rm /etc/dracut.conf.d/xen.conf sudo dnf update -y P...