Apparently they never learn and are instead busy adding features like DRM and UEFI to make our lives even more miserable.
However updating the BIOS on my Lenovo X230 laptop was surprisingly easy once I learned how to do that (kudos to a G post I stumbled upon).
BIOS downloads from HP are restricted and require regsitration to their site.
Therefore I am sorry that I can't give you a more precise advice on the procedures involved.
Updating a BIOS from Ubuntu is only possible if the hardware manufacturer provides a custom tool that runs with Ubuntu or Linux.
Google search gave me some results but somewhere I read that recent updates are done from inside windows installation and not with a floppy.
This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant.
The "Download Page" will have different instructions, depending on the BIOS version and model type of your computer. Launie Sorrels is a veteran who has worked as a chef and has more than two decades of martial arts training.
After the "Download Page," the Installation Setup" screen will appear. His writing has developed from his experience as a quality assurance manager for Microsoft and IBM.
This article aims on providing information on flashing your system BIOS under Linux.
Most manufacturers provide a Windows executable or a BIOS executable that can only be run under Windows.