Compile your own kernel and install
I have updated my Ubuntu kernel from 5.0.* -> 5.6.13 This note is a backup of How to compile and install Linux Kernel 5.6.9 from source code. Environment: Ubuntu 18.04 Kernel: 5.0.*
Step 0. Install the required compilers and tools
$ sudo apt-get install build-essential libncurses-dev bison flex libssl-dev libelf-dev
Step 1. Get source code from kernel.org​
$ wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.6.13.tar.xz
Step 2. Extract tar.xz file
$ unxz -v linux-5.6.13.tar.xz
Step 3. Verify signature
$ wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.6.13.tar.sign
$ gpg --verify linux-5.6.13.tar.sign
output: using RSA key [email protected]%^*#^%^*
$ gpg --recv-keys [email protected]%^*#^%^*
$ gpg --verify linux-5.6.13.tar.sign
Step 4. Configure the Linux kernel features and modules
$ cd linux-5.6.13
$ cp -v /boot/config-$(uname -r) .config
make menuconfig
Step 5. Compile
$ make -j4
Step 6. Install kernel modules
$ sudo make modules_install
Step 7. Install kernel
$ sudo make install
Step 8. Update grub config
$ sudo update-initramfs -c -k 5.6.13
$ sudo update-grub
Step 9. Reboot and check version
$ reboot
$ uname -mrs
Linux 5.6.13 x86_64
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