1 | vi /etc/apt/sources.list |
uncomment lines beginning with 'deb-src' and save, then
1 2 | apt-get update apt-get source linux-image-unsigned-$(uname -r) |
refer to:
https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel
https://stackoverflow.com/questions/45766719/error-during-ubuntu-kernel-source-download