Boot Mode PANASONIC ToughBook C2, How To - HardReset.info
How to install GNU/Linux on the Panasonic Toughbook (FZ-40 / FZ-40CCAABKM) with almost(!) full hardware support (digital microphone, GPS, SIM card install documented but untested, touch screen, touchpad, webcam confirmed unsupported as
Panasonic Toughbook CF-20 - Tough Outlet
Boot Mode PANASONIC Toughbook CF-XZ6 , How To - HardReset.info
QUICK-START GUIDE
How to Install Xubuntu on a Toughbook CF-18 - Bob Johnson's Computer Stuff, Inc.
Disclaimer Trademarks
Booting to a Panasonic UEFI Device Using a USB Flash Drive - YouTube
Back on Panasonic Toughbook CF-20 Mk2 : r/hackintosh
Panasonic Toughbook Black Cobra CF-20 MK1 | TechTough