how to compile and replace ubuntu kernel

how to compile and replace ubuntu kernel

0. environment
　　-ubuntu 1804 64bit 

1. prepare source code
　　sudo apt-get install linux-source
　　or
　　wget https://git.kernel.org/torvalds/t/linux-4.17-rc2.tar.gz (replace to your version)

2. set up tools
　　sudo apt-get install git fakeroot build-essential ncurses-dev xz-utils libssl-dev bc flex libelf-dev bison

3. tar xvzf linux-4.17-rc2.tar.gz (replace to your version)

4. cp /boot/config-$(uname -r) .config

5. make menuconfig (can be ignored)

6. make modules_install

7. sudo make install

8. sudo mkinitramfs -o /boot/initrd.img-4.15.18

9. sudo update-initramfs -c -k 4.15.18

10. sudo update-grub2

11. result 

reference

https://linux.cn/article-9665-1.html

https://blog.csdn.net/qq_36290650/article/details/83052315