Changing the contents of the boot/config.txt file is sometimes required in order to repair a Raspberry Pi. Here is all you need to know in order to successfully carry out that task.
You are working on a project with a Raspberry Pi when all of a sudden you discover that something is wrong. In order to correct it, you will need to alter the config.txt file, which can be located in the /boot directory.
However, what is the quickest and most convenient way to retrieve this file while the Raspberry Pi is operational? How should you change it if you have to shut down the computer in order to retrieve the microSD card? Everything you need to know to successfully change the config.txt file on your Raspberry Pi can be found here.
Why the config.txt File Is Necessary on Raspberry Pi
The default Raspberry Pi OS operating system, which was formerly known as Raspbian, relies on certain configuration settings that are read when the computer boots from the microSD card. This is also true of the majority of the alternative operating systems. These are kept in the config.txt page for your convenience.
Can you tell me where the config.txt file is located on the Raspberry Pi? You need to navigate to the /boot folder to find it.
These instructions could modify the way the display is recognized and the way the desktop is shown; config.txt can even be used to overclock your Raspberry Pi (or return it to the default clock settings).
Because neither of these parameters can be modified on a Raspberry Pi that is already operational, they are both recorded in the config.txt file. If the display isn’t detected, you won’t be able to change any settings on the desktop. The problem may be fixed by making changes to the config.txt file on the Raspberry Pi.
In a similar vein, if the Raspberry Pi has been overclocked and won’t boot or keeps restarting itself, you won’t have access to the raspi-config program to reset it since it won’t let you. Instead, you are given with the config.txt file so that you have the option of resetting the clock speed on your Raspberry Pi.
Altering the audio settings and the USB boot mode may both be done from inside the config.txt file. config.txt can also be used to adjust the USB boot mode. The official documentation for the Raspberry Pi has a comprehensive list of available configuration settings.
Access config.txt From Within Raspberry Pi OS
The config.txt file may be accessed while the Raspberry Pi OS is operating, if you need to modify it. The microSD card’s root directory contains the /boot subdirectory. Double-click on the file to open it in your preferred text editor, and you’re ready to go.
Keeping the original is a smart idea if you’re going to be editing the file. You should be aware that the desktop File Manager does not allow you to create a duplicate of the file since this operation requires root user rights. Rather, you should open a Terminal and make a duplicate of the file like follows:
sudo cp /boot/config.txt /boot/backupconfig.txt
Give a meaningful name to your copy. Note that while modifying the config.txt file, no changes will be made until you reboot your Raspberry Pi.
Remotely Edit the Raspberry Pi’s config.txt
Is your Raspberry Pi connected to a keyboard and display at all times? On a networked computer, you can modify config.txt remotely on a Raspberry Pi. SSH (or VNC, or RDP) is a good way to do this.
sudo nano /boot/config.txt
The /boot directory may be accessed in a similar manner.
Afterwards, hit Ctrl+X and Y to save your changes and quit the application. After making adjustments, reboot your Raspberry Pi.
How to Edit config.txt on Your PC
MicroSD cards should allow Linux, Windows, and Mac computers to view the config.txt file. Ejecting the SD card and shutting down your Raspberry Pi carefully can prevent data corruption. To view the contents, insert it into your computer’s card reader.
Edit the config.txt file on a Linux computer
When you enter a disk into a Linux computer and need to make changes to the config.txt file, your default file manager should show the disk as an option. For example, the main volume (usually “1.8GB Volume” as the size of the default Raspberry Pi OS disk) and boot devices should be stated separately.
This is the volume, as you would have guessed, that needs to be accessed. The /boot directory is mounted as if it were a disk. Open config.txt by opening this file. For safety, save your modifications in your preferred text editor and then use your file manager’s Eject button to carefully remove the SD card.
On Windows 10, modify the config.txt file
Inserting the Raspberry Pi’s SD card on a Windows machine should result in it being automatically mounted, and accessible via Windows Explorer. Despite the fact that two partitions will be seen on the device, Windows users will only be able to access the boot partition.
Choose this, then look for the config.txt file. When you are through making changes, save your work using the default version of Notepad or another text editor such as Notepad++, and then leave the program.
To remove the SD card from the disk without damaging it, right-click the drive’s icon in the My Computer menu and pick the Eject option.
On MacOS, edit the config.txt file
You may also alter the boot config file for your Raspberry Pi if you are using a Mac, which is another option.
After the SD card has been inserted, use the Finder to navigate its contents while looking for the config.txt file (or config, without the .txt file extension). Use the TextEdit program to read and make edits to the file, and be sure that any changes you make are saved before you quit the program. To eject the card, either drag its icon on the desktop to the Trash or right-click it and pick the Eject option from the context menu.
It is imperative that you remember to carefully eject the device before inserting it back into your Raspberry Pi after modifying the config.txt file that was read from the microSD card on your own computer.
Tweaking Your Raspberry Pi Even Further
One of the many ways that the overall configuration of the computer may be edited is by editing the file known as config.txt located on the Raspberry Pi. Hacking your Raspberry Pi through the use of the boot partition is one of the most effective methods. It is likely that you are already familiar with the raspi-config program, which can be accessible through the Terminal. The Raspberry Pi Configuration Tool is a desktop application that may be accessed through the Raspberry Pi Operating System’s Preferences menu.
If you tweak the setup of the Pi correctly, you might save a significant amount of time. After you have finished configuring the Raspberry Pi, you do not need to make any changes to the config.txt file that is stored on the device. Instead of wasting time, why not take advantage of Raspberry Pi Imager’s menu of sophisticated options? Even before you install the operating system, you have the opportunity to make adjustments to settings such as the hostname, the SSH client, and the wireless network configuration in this section.