NVIDIA 340 on CentOS 7

Error:

your kernel headers cannot be found nvidia

installl

yum install "kernel-devel-uname-r == $(uname -r)"

yum update kernel* selinux-policy*

reboot

NVIDIA

curl -O http://ru.download.nvidia.com/XFree86/Linux-x86_64/340.107/NVIDIA-Linux-x86_64-340.107.run