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I am wanting to use ubuntu v20.04 64 on my Raspberry Pi 4. I also what to be able to use the on-board camera.

I have followed these steps to install and boot up my Rpi4 with Ubuntu:

https://ubuntu.com/tutorials/how-to-install-ubuntu-on-your-raspberry-pi#2-prepare-the-sd-card

This is not really relevant to my question and is just a reference hence the link only.

From Googling I have used these steps to install the camera modules:

sudo bash -c "echo 'start_x=1' >> /boot/config.txt"
sudo bash -c "echo 'gpu_mem=128' >> /boot/config.txt"

sudo apt-get update 
sudo apt-get install build-essential
sudo apt install cmake
cd /home
sudo git clone https://github.com/raspberrypi/userland
cd userland
sudo ./buildme --aarch64

I then reboot and try to create an image using this command:

sudo raspistill -o cam.jpg

I get this error:

raspistill command not found.

What else can try?

Thanks

3 Answers 3

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According to this issue https://github.com/raspberrypi/userland/issues/630 support for MMAL is broken in 64bit arm64. Thus raspistill won't build and is not packaged for arm64.

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The config file config.txt is in /boot/firmware not in boot folder for ubuntu 20.04 LTS. if the line start_x=1 is present in the file, there is no need to try to raspi-config or raspistill which is not supported in ubuntu 20.04. U can add the start_x=1 line in the config.txt file by $sudo nano /boot/firmware/config.txt

try installing cheese through terminal which will display the camera feed and also it will list all the cameras connected to the Rasberry pi 4

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You need to install the raspi-config tool.

In a terminal type below command to install the tool.

sudo apt install raspi-config

Then open the tool using

sudo raspi-config

Once the tool screen is openwed, go to Interface Options and then enable "Legacy camera option".

More about raspi-config tool Raspberry Pi Documentation

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