GNU/Linux Ubuntu 21.04 Updating Kernel GUI – Step by step Guide
How to Update/Upgrade Kernel with GUI easily on Ubuntu 21.04 Hirsute GNU/Linux desktop – Step by step Tutorial.
And this Update Linux Kernel Ubuntu Hirsute Guide make use of Mainline a UI Tool to manage the Linux Versions on Ubuntu based desktops.
Especially relevant: this guide is valid also in case you need to Downgrade the Linux Kernel.
Finally, this guide includes detailed instructions about to Updating Linux Firmware on Ubuntu.
 
- 1. Accessing Shell- Open a Terminal window 
 Ctrl+Alt+t on desktop
 (Press “Enter” to Execute Commands)In case first see: Terminal QuickStart Guide.  
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