1. #!/bin/bash
    2. yum -y groupinstall "development tools"
    3. yum -y install ncurses-devel openssl-devel elfutils-libelf-devel bc
    4. wget https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/linux-4.19.91.tar.gz
    5. tar xf linux-4.19.91.tar.gz
    6. cd linux-4.19.91
    7. cp /boot/config-3.10.0-11* .config
    8. make defconfig
    9. make -j 4
    10. make modules_install
    11. make install
    12. grub2-set-default 0
    13. echo 'Update Success'
    14. #reboot