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I downloaded Ubuntu Desktop 22.04.1 LTS from https://ubuntu.com/download/raspberry-pi and copied image to external SSD using Raspberry Pi Imager.

When I power Raspberry Pi 4 (2GB), I see rainbow and then screen goes black.

I am able to install and boot Raspberry Pi OS with desktop and Ubuntu Desktop 22.10 on same external SSD.

I am also able to install and boot Ubuntu Desktop 22.04.1 LTS on microSD card.

What am I missing? Thanks for helping out!

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  • Did you try to reinstall Ubuntu? When I tried to use ubuntu on my Pi, it was lagging a lot. Also, when you mentioned Raspberry Pi 4 (2GB) is that the ram, or the amount of storage on the sd card?
    – LilData777
    Commented Jan 27, 2023 at 17:04
  • Sorry, I meant amount of storage on the external ssd
    – LilData777
    Commented Jan 27, 2023 at 17:10
  • Thanks for helping out @Friendlygabe777. 2GB of RAM.
    – sunknudsen
    Commented Jan 27, 2023 at 17:14
  • No problem. I don't think your raspberry pi has enough ram. Did you check the requirements on the Ubuntu site?
    – LilData777
    Commented Jan 27, 2023 at 17:21
  • Yes, 2GB is enough.
    – sunknudsen
    Commented Jan 27, 2023 at 17:38

1 Answer 1

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The culprit was the power supply… I was using a 65W AUKEY PA-B3.

Using official Raspberry Pi USB-C power supply, I am able to install and boot Ubuntu Desktop 22.04.1 LTS.

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