Stable Raspberry Pi 4 USB boot

The Stable Raspberry Pi 4 USB boot is here! And I will show you how to get it!

Shortly after my previous Raspberry Pi 4 SSD boot article was released the BETA bootloader was promoted to STABLE.

Now I want to show you several things:

1. How to enable the Stable Raspberry Pi 4 USB boot from scratch.
2. How to upgrade your bootloader from BETA to STABLE that is only if you followed my previous tutorial

What you will get from this article?

Some of you can use this article to install the latest Stable Raspberry Pi 4 USB bootloader.

Some of you told me that they want to upgrade their beta bootloader to stable.

And I will try to cover all of that, but don’t worry it will be easier than you think.

Compatible USB drives

Although the Stable Raspberry Pi 4 USB boot is now available, it should be still used with caution.

Not all USB drives can be used to boot your Raspberry Pi 4. To see the compatible drives check the table below where I put devices reported by me and other users as working just fine.

Model	Link
SSD HP P600, 250GB, USB 3.1	https://amzn.to/2B7qIDi
Samsung 860 EVO 500GB 2.5 Inch SATA III Internal SSD	https://amzn.to/37o2hNS
ELUTENG USB3 SATA Adapter 2.5 Inch SATA to USB 3.0	https://amzn.to/2MWfd49
SanDisk SSD PLUS 240 GB Sata III 2.5 Inch	https://amzn.to/37AG27e
Samsung BAR Plus 64 GB Type-A 200 MB/s USB 3.1	https://amzn.to/3fqJSCO
SanDisk Ultra 32 GB USB Flash Drive USB 3.0	https://amzn.to/3frXg9J
Samsung MZ-MTD1280 (128GB mSATA) & Element14 Pi Desktop (rev 3) HAT	Reported by Steve Kowalski in the comments
Sandisk x110 128GB	Reported by Con Ben in my YouTube Channel
SanDisk 256GB Extreme PRO USB 3.1 Solid State Flash Drive	https://amzn.to/2NtLyQc
Crucial MX500 250GB 3D NAND SATA 2.5 Inch Internal SSD (needs SATA adapter)	https://amzn.to/2YvVAq7
Samsung 860 QVO 1TB Solid State Drive (needs SATA adapter)	https://amzn.to/2YAyGhz
CanaKit Raspberry Pi 4 4GB Starter Kit – 4GB RAM	https://amzn.to/3eyGi9S
Kingspec Z3 Type C USB 3.1 External SSD (Reported by CraftSense in my YouTube)	Banggood link
Geekworm X825 2.5 inch SATA HDD/SSD Expansion Board (Reported by Jay in peyanski.com)	https://amzn.to/2QML60Q
Kingston A400 120G Internal SSD M.2 SA400M8 (Reported by Luiz Barreto in peyanski.com)	https://amzn.to/32kRR0k

I can confirm that the external HP P600 SSD is working without any issues so far.

Now let’s go

Creating a SD card with Raspberry Pi Imager

Go to the download section of https://raspberrypi.org and get the Raspberry Pi Imager for your operating system.

Start it, insert a SD card in your computer or SD card reader.

Don’t worry we will need the SD card only for a while then we will remove it completely.

When Raspberry Pi Imager finish it will unmount the SD card automatically. Remove the SD card and insert it again to access its contents and to create a file ssh inside it.

Headless Raspberry Pi (Optional)

If you wish you create an empty file called ssh inside the boot partition of your SD card. If you do that you will be able to connect to your Raspberry over the network without even attaching a monitor, keyboard or mouse to it.

The above file will enable a SSH server and you will have the possibility to connect to the raspberry using SSH client.

To do that on MacOS you can execute the following command in the terminal:

touch /Volumes/boot/ssh

For Linux/Windows you can use any text editor or you can copy/paste and rename one of the existing text files inside the boot partition of the SD card.

When you are ready, insert the SD card in your Raspberry and plug it in the electricity.

Getting ready and updating the Raspberry OS

After a minute or two check your router for the IP address assigned to your raspberry and connect to it using the following command on MacOS or Linux:

ssh pi@YOUR_RPI_IP

You will be asked for a password and the default one is “raspberry” without the quotes.

For Windows you can use Putty client for the SSH connection. Just Google for it if you don’t know how to use it.

When you log in successfully, execute the following commands to update your Raspberry Pi 4.

sudo apt-get update
sudo apt-get upgrade -y
sudo rpi-update 
sudo reboot

This will reboot your Raspberry Pi when all finish.

Login again and we now need to install a package that will allow us to update the bootloader to enable the Raspberry Pi 4 usb boot.

Execute the following:

sudo apt install rpi-eeprom -y

Stable release

Then run this command to allow Stable Raspberry Pi 4 USB boot. This “one liner” will replace the word critical with stable in the /etc/default/rpi-eeprom-update file.

sudo sed -i 's/critical/stable/g' /etc/default/rpi-eeprom-update

Of course you can use any text editor for that with the same success.

By default only critical firmware updates are allowed in the raspberry OS. With the above command you will allow also the stable track where the Stable Raspberry Pi 4 USB boot firmware is.

then go to “Update the bootloader“

Beta release

Use this ONLY if you are on BETA firmware! In any other case use the command above and skip this Beta section.

This “one liner” will replace the word beta with stable in the /etc/default/rpi-eeprom-update file.

sudo sed -i 's/beta/stable/g' /etc/default/rpi-eeprom-update

Enable Stable Raspberry Pi 4 USB boot

Now it is time to install the new bootloader to enable the stable Raspberry Pi 4 usb boot. Just run the following…

Stable bootloader

To update your bootloader to stable use the following command:

sudo rpi-eeprom-update -d -f /lib/firmware/raspberrypi/bootloader/stable/pieeprom-2020-06-15.bin

It is good idea to replace 2020-06-15 (stable) with the latest .bin file in the above folder.

Please reboot your raspberry after that using the following command.

sudo reboot

Login again and execute these two commands:

vcgencmd bootloader_version 
vcgencmd bootloader_config

The first one will show you the bootloader version. Just search for the date in my case it was Jun 15 2020, but yours may be different (the one that you use in the rpi-eeprom-update command)

And the second command will show you the boot order.

You should look for the last row of the result which should be BOOT_ORDER=0xf41. If you see this that means your Raspberry Pi 4 will first look for SD card and if there isn’t any it will try to boot from a drive connected to the USB ports of the Raspberry.

Burning the Raspberry OS on the SSD

We need to burn the image of the Raspberry Pi OS one more time, but this time on the SSD. The process is exactly the same as with the SD card. Just choose the SSD (USB drive) as a destination.

And don’t forget to create again an empty ssh file in the boot partition of the USB drive to activate the remote SSH login to the Raspberry.

You can skip this step If you have a monitor, keyboard and a mouse attached to your raspberry.

Copy some files from SD to SSD

Burning the raspberry OS on the SSD drive is ready and I will now show you how to mount the drive to copy some files from the SD card. Let’s do it it’s easy.

Plug the SSD/USB to your Raspberry Pi 4 and execute the following commands to mount the SSD/USB disk to your Raspi.

sudo mkdir /mnt/mydisk
sudo mount /dev/sda1 /mnt/mydisk

Then copy the needed files from SD card to SSD/USB disk with the following two commands:

sudo cp /boot/*.elf /mnt/mydisk
sudo cp /boot/*.dat /mnt/mydisk

Stable Raspberry Pi 4 USB boot

Now is the time where you can throw away your SD card!

I actually don’t recommend to throw anything especially your SD card, just remove it from your Raspberry Pi 4 and use it for something else.

But if you feel like you want to throw something after all why don’t you try throwing your mouse click against the Subscribe button below?

[sibwp_form id=2]

I will truly appreciate that. Thank you.

And as I said remove the SD card, leave the USB drive connected and reboot your Raspberry. If everything is OK you should very soon enjoy your Raspberry Pi 4 USB boot with faster speeds and increased reliability.

The speed increase in my case from moving from SD card to SSD is over 10 times as you can see on the following screen.

Enable VNC server for remote GUI connection

Let’s enable the VNC server now in order to allow connecting to the graphical interface of the Raspberry.

Login to your Raspberry and execute:

sudo raspi-config

Then go to Interfacing Options > VNC and enable it by selecting Yes.

Reboot and try to connect to your Raspberry Pi with a VNC client like VNC Viewer for example. You should use your username and password from the SSH.

Quick Fix if you have issues connecting with VNC

I will show you a quick fix If you face similar error as shown below and you cannot connect with your VNC client to the Raspberry.

Execute:

sudo raspi-config

And this time go to Advanced Options > Resolution

And choose an appropriate resolution for you, then reboot and try again.

You should now see the Raspberry Pi 4 desktop.

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I really hope that you find this information useful and you now know how to enable the stable Raspberry Pi 4 USB boot using SSD drives and remove your SD card forever.

Thank you for reading and don’t forget Home Smart, but Not Hard!

Stay Safe and see you next time.