How to upgrade your linux kernel, Debian/Ubuntu

Ubuntu

1. Download the ubuntu-mainline-kernel.sh Bash script utility. Open up your terminal and enter:

wget https://raw.githubusercontent.com/pimlie/ubuntu-mainline-kernel.sh/master/ubuntu-mainline-kernel.sh

2. install the previously downloaded script into our executable path:

sudo install ubuntu-mainline-kernel.sh /usr/local/bin/

3. All is ready to upgrade the Ubuntu kernel to the latest version. To do so run do following command:

ubuntu-mainline-kernel.sh -i

The above command will search for the latest kernel version available. To continue with the kernel installation answer y.

4. Finally, reboot your system

reboot

Debian

1. Update the system
   apt update && apt full-upgrade -y
apt install lsb-release

2. Add the repo to the sources list

cat > /etc/apt/sources.list << EOF
deb http://cdn-aws.deb.debian.org/debian $(lsb_release -sc) main contrib non-free
deb http://cdn-aws.deb.debian.org/debian-security $(lsb_release -sc)/updates main contrib non-free
deb http://cdn-aws.deb.debian.org/debian $(lsb_release -sc)-updates main contrib non-free
deb http://cdn-aws.deb.debian.org/debian $(lsb_release -sc)-backports main contrib non-free
deb http://cdn-aws.deb.debian.org/debian $(lsb_release -sc)-proposed-updates main contrib non-free
# deb http://cdn-aws.deb.debian.org/debian $(lsb_release -sc)-backports-sloppy main contrib non-free
EOF

3. Do the update again
   apt update

4. upgrade your kernel
   apt install -t $(lsb_release -sc)-backports linux-image-$(dpkg --print-architecture) linux-headers-$(dpkg --print-architecture) --install-recommends -y
update-grub
reboot