Merge pull request #1098 from Dasharo/fwupd-usage

docs/kb/fwupd.md: Add

Author: SergiiDmytruk

docs/kb/fwupd.md

@@ -0,0 +1,64 @@
+# fwupd
+
+## Introduction
+
+[fwupd][fwupd website] is an open-source project, that
+is widely used to make firmware updates almost as seamless and simple
+as updating system packages. It is supported by most hardware vendors
+and Linux distributions.
+
+The `fwupd` daemon relies on the Linux Vendor Firmware Service (LVFS)
+for distributing and managing the firmware binaries to the users.
+
+!!! note
+     `fwupd` depends on
+     [Capsule Updates](https://docs.dasharo.com/guides/capsule-update/)
+     support. Refer to the "Firmware update" section of your device
+     documentation (like [this one](https://docs.dasharo.com/unified/novacustom/firmware-update/)).
+
+## Usage
+
+The most popular Desktop Environments like Gnome and KDE automatically
+look for firmware updates on LVFS and suggest performing them with a
+simple button press.
+
+|![Firmware update available in Gnome Software](./images/fwupd-gnome.png)|
+|--|
+|Firmware update available in Gnome Software|
+
+For more advanced users or in more lightweight
+DEs/WMs `fwupdmgr` can be used in the terminal.
+
+* Detect the supported hardware
+
+    ```bash
+    fwupdmgr get-devices
+    ```
+
+* Refresh metadata from LVFS
+
+    ```bash
+    fwupdmgr refresh
+    ```
+
+* Check for available updates
+
+    ```bash
+    fwupdmgr get-updates
+    ```
+
+* Download and install the firmware updates
+
+    ```bash
+    fwupdmgr update
+    ```
+
+## References
+
+[fwupd website][fwupd website]
+[fwupd github repository][fwupd github repository]
+[fwupd documentation][fwupd documentation]
+
+[fwupd website]: https://fwupd.org
+[fwupd github repository]: https://github.com/fwupd/fwupd
+[fwupd documentation]: https://lvfs.readthedocs.io

docs/kb/images/fwupd-gnome.png

@@ -511,6 +511,7 @@ nav:
       - 'PCR Measurements': kb/pcr-measurements.md
       - 'NovaCustom dev setup': kb/laptop-dev-env.md
       - 'Flash Regions': kb/flashregions.md
+      - 'fwupd firmware updates': kb/fwupd.md
     # - 'Trolling Topics List':
     #     - 'Introduction': osf-trolling-list/osf_issues_taxonomy.md
   - 'FAQ':