I am confused about which Version I should go for since the Raspberry Pi has an ARM Processor inside. Sure "Ubuntu for Raspberry Pi" should be the right one since the Naming is really helpful, but is there any advantage of using the Ubuntu Server for ARM on Raspberry Pi? What are the differences at all?
Thanks a lot in advance.
I don't believe there is any difference between Ubuntu Server ARM and Ubuntu Server Raspberry Pi, except for the installation method used.
The ARM version seems to target ARM devices generally including SBCs and the Raspberry Pi version seems to target the Raspberry Pi series of small single-board computers specifically. Even if the two versions are identical except for the installation method, for the sake of posterity in my opinion you would have better luck with installing the Raspberry Pi version in case the two versions diverge from each other in the future.
A common method of installing Ubuntu on a Raspberry Pi is to use a bootable Ubuntu installation USB flash drive which you can make yourself. Use the rpi-eeprom-update command to enable USB boot on a Raspberry Pi by following these steps.
Connect your Raspberry Pi to a monitor or TV and keyboard.
Boot into the command line interface. This is usually the default boot mode for new Raspberry Pis.
Open a terminal and run rpi-eeprom-update
The script will guide you through the process. You'll be asked to confirm if you want to enable USB boot. Type "yes" and press Enter to proceed.
Reboot your Raspberry Pi for the changes to take effect.
Now you can create a bootable Ubuntu installation USB flash drive by following the steps in this answer.
