# Upgrade Ubuntu 20.04 Linux Kernel

#### Verify Installed Kernel Version

Type the following command in command line to view currently installed Kernel version:

```
sudo uname -r
```

Should output output similar to below:

```
5.4.0-80-generic
```

#### Download latest Kernel Version

Navigate to the [kernel-ppa](https://kernel.ubuntu.com/~kernel-ppa/mainline/) website and then click on the **latest** Kernel version (at the time of this writing v5.15, adjust as necessary) (**Figure 1**).

**Figure 1**

[![image-1635951641068.png](https://docs.deeztek.com/uploads/images/gallery/2021-11/scaled-1680-/image-1635951641068.png)](https://docs.deeztek.com/uploads/images/gallery/2021-11/image-1635951641068.png)

Next click on your platform version (most likely **amd64**) (**Figure 2**).

**Figure 2**

[![image-1635951870776.png](https://docs.deeztek.com/uploads/images/gallery/2021-11/scaled-1680-/image-1635951870776.png)](https://docs.deeztek.com/uploads/images/gallery/2021-11/image-1635951870776.png)

Using wget download the following files (adjust file names to your version and date) (**Figure 3**):

```
wget linux-headers-<VERSION-NO>_<VERSION-NO.<DATE>_all.deb
wget linux-image-unsigned-<VERSION-NO>-generic_<VERSION-NO>.<DATE>_amd64.deb
wget linux-modules-<VERSION-NO>-generic_<VERSION-NO>.<DATE>_amd64.deb
```

**Figure 3**

[![image-1635952033801.png](https://docs.deeztek.com/uploads/images/gallery/2021-11/scaled-1680-/image-1635952033801.png)](https://docs.deeztek.com/uploads/images/gallery/2021-11/image-1635952033801.png)

#### Install latest Kernel version

From the directory where you downloaded all the Kernel .deb files from above, run the following command:

```
sudo dpkg -i *.deb
```

Once installation is finished, reboot your computer and check that the Kernel has been upgraded by running the following command again:

```
sudo uname -r
```