Follow step 1 to 7 from the “ How to Install Linux on a Chromebook” section.Make the installation USB by following instructions from Chromeready.Have another USB ready (8 GB or larger, note that everything on it will be wiped).
(Read my note above if you want to verify the ISO image.) The file most likely would be in your “Downloads” folders.
And I had to assign them as hotkeys in the end and was not able to get all of them working. The top row of the keyboard did not work, I did not find a working solution. The internal speakers and headphone did not work though I did find a solution. Please read Firmware Utility Script on MrChromebox.tech before choosing an option. The instructions here is only for people like me who don’t want to open their laptops. Only changes the crossystem flag BIOS to allow booting from USB, you don’t need to open your laptop but you will need to press ctrl-l after each power-up and reboot with a much longer boot time.
Making the Chromebook boot from USB: Many of the installation instructions online did not mention the need to modify BIOS to allow Chromebook to boot from a non-Chromebook recovery USB. After checking other tools, the best solution for me was the Chromebook Recovery Utility extension. Making a bootable USB for installation: The most popular tool, Etcher, did not work with my Chromebook and the other computer (the OS is too old). And those lines the text input are called Line Commands. ** Terminal Window is a window that simulates an old physical terminal that only takes text input and displays only text on the screen. * ISO image is like a digital version of the installation CD. If you want to make sure the downloaded ISO file is safe and error-free, you can verify the ISO as instructed by Linux Mint or search for the solution online for your operating system. It was only after I’ve installed Mint was I able to run the Authenticity Check from the Linux Mint terminal window**.
The first time I downloaded the ISO, I was so frustrated I skipped the verification. Verify the Linux Mint ISO image*: This step was difficult unless you already have a Linux system running somewhere. The main issue was not having any one particular source to explain the entire process dedicated to the Acer Chromebook 14 CB3-431 (Edgar). It took me more than 7 dedicated days to get Linux Mint installed. I have some experiences with computers (very little with Linux). (Take me straight to the instructions.) What I Went Through That is for you to decide after you’ve read through what I encountered during installation and initial uses on this model as PURE Linux Mint 20.2 machine.