Pi3 Firmware USB Boot & RaspOS Install.
18For today’s video we did a DIY install of Raspberry Pi OS, on a Raspberry Pi 3b. I wanted this unit to boot from a USB, as I am using it to build a Miner, and I want the best read/write speeds I can get off of this Low Powered SBC. Because of this we first had to flash an SD Card with Raspberry Pi OS, then change some code on the Config File, and use the SD Card to boot, and change some internal settings, so the unit would boot from both an SD Card or a USB Drive.
I’ll be using this Pi 3 for a Linux Miner using passive resource Apps. Once I have that Unit up, I’ll Post a Video.
Here is the Video of the Windows Version Running on a team of Pi 4 units: https://youtu.be/Di_Qq7zoq8o
Video about Updating Pi 4 to boot via USB Drive: https://youtu.be/te3ZNYF4oNk
Hardware Links:
16GB SD Card: https://www.amazon.com/dp/B073K14CVB?ref_=cm_sw_r_cp_ud_dp_0036HZNSDKG1XNVSNKWW
32GB USB Drive: https://www.amazon.com/dp/B077TB9N76?ref_=cm_sw_r_cp_ud_dp_J1ZQHK361EAR2QS70YDB
Pi 3b (Good Luck): https://www.amazon.com/dp/B07JLQ9GYF?ref_=cm_sw_r_cp_ud_dp_49DM2CE9HRN5JQYX9X4D
Software Links:
7zip: https://www.7-zip.org/download.html
Raspberry Pi OS: https://www.raspberrypi.com/software/
Win32diskimager: https://win32diskimager.org/
Notepadd++: https://notepad-plus-plus.org/downloads/
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Today’s Basic Script
Flashing a Raspberry Pi 3b so it will boot from a USB Drive.
In today’s Video we will show you how to flash the Firmware in your Raspberry Pi 3b so that it will boot from both a USB Drive, and from an SD Card.
For this Video we will be using a 16GB SD Card, Raspberry Pi 3b, 32gb USB Drive, Keyboard mouse combo, and a monitor.
To set this up we will be using a Windows 7 Laptop, Notepad ++ Win32diskimager, Raspberry Pi OS, and 7zip.
Links for all the software are in the description, if needed, and for this video I’m going to assume that you’ve had them or equivalents installed.
The firsts this we need to do is download our Image file. To do this simply Google Raspberry Pi OS. The Link we need should be the very first.
From here you’ll want to scroll down to the area that says Manually Install an Operating System Image, and Click on the See all Downloads.
Once there Scroll down about half way though the page and find Raspberry Pi OS (64-Bit).
You will be able to use the 32-bit Version of Raspberry OS, but I like this one, so it is the one we will be using.
Once you have it downloaded you will need to Un-zip the Download file with 7zip or you’re preferred Zip Utility.
After the image files are downloaded and Un-zipped, you will need to open Win32diskimager and navigate to your Downloads folder so you can find the Image. I like Win32diskimager. However, there are a ton of other similar utilities that you can use.
You will now need to place your Sd Card into your computer, and tell Win32diskimager what drive your Sd Card is parked.
Once you have your image, and drive selected you can hit write image to drive. Please verify that you are using the right drive and image. This will take a minute or two depending on the speed of your computer.
Once your Sd Card is flashed with our image, we will need to add some code that will change the settings on the internal chips on your Pi.
To do this we will need to find our SD Card. AS you can see it is now labeled as boot.
Once we have found the boot drive open it, and find the config.txt file.
Once you’ve found the config.txt file, right click on it, and open it with Notepad++, or your favorite edit utility.
Once it is open, we will simply scroll all the way to the bottom and we will add the following code.
Program_usb_boot_mode=1
You will also find this code in the description.
This code will tell our Pi3 that we first wish to try and boot from the USB Drive before we try and boot from the SD Card. However, if no Bootable USB Drive is available the pi will then try and boot from SD Card.
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