Raspberry has an official program to create a bootable micro SD easily. Follow these
steps:
-
Download the appropriate package from the official website (Raspberry Pi Imager).
-
Run the installer.
-
When the installer executes, from the Installation wizard, click
CHOOSE OS and select Other General Purpose
OS, then select Ubuntu.
You can select Ubuntu with a Desktop or another version like Server or Core,
but it must be the 64 bit version.
-
Click CHOOSE STORAGE and select the location of your SD
card in the Storage section.
-
Click Write to start the installation.
Once the installation is complete, remove the SD card from your
computer.