HW: Rasberry Pi 4B with 8 GB ram
Made some “mess” on my Raspberry Pi, and are now doing a complete new install.
Ignition Guide (for Eddge)
Do I need java for Ignition Maker ver. 8.1.7?, last time I did not install that and have not noticed any errors, will install this Ignition - Linux AARCH64 zip (1471MB)
If I need Java, must it be ver. 8 or will ver. 11 also do the job?
What are Java used for in Ignition?
After this Ignition can not run without Java, but I did not install it last time ??????
https://inductiveautomation.com/resources/article/java-security-and-ignition
Beginning with Ignition v8, Java is supplied by IA with Ignition. You don’t need to install java on the RPi before installing Ignition, and Ignition won’t use the system java anyways.
Thanks for clearing that out 
As an aside, if you are running the most current, stable release of Raspbery Pi OS, you may want the 32-bit ARM zip install instead of the 64-bit one. Of course, disregard this if you actually have the 64-bit beta OS (or another distro altogether) installed on your Pi. 
FWIW, I’ve had good luck using the Raspberry Pi Imager to setup an SD card (or USB-booted m.2 SATA SSD w/ Argon One M.2 case ← super neat) for Ubuntu Desktop 64-bit, which would then let you use our AARCH64 build and take advantage of that 8GB of RAM.
That’s almost exactly my current Maker edition set up, except I’m using a 4GB Pi 4 model with the stock Raspberry Pi OS. That Argon One case is great!
I have the 64 bit OS installed on my Pi, mostly so I can use all 8GB ram 
https://www.raspberrypi.org/forums/viewtopic.php?t=275370
I have the same Aragon case for my RPi
I used Raspberry Pi Imager to Install "Raspberry Pi OS 64 bit", you just need to download it form here
https://downloads.raspberrypi.org/raspios_arm64/images/
In Raspberry Pi Imager then scroll down to "Use custom" to select it
Yup, that is certainly an option too! I’ve tried it out as well and seems to be functional and stable–didn’t mention it because it is still technically “beta”… But a good option, honestly…
I just used the Pi imager to install Ubuntu Desktop 64, and discovered that the Ubuntu could only see my 2.4G WiFi and not my 5G WiFi. Yet the default Raspberry Pi OS (32bit?) could see both. I'd guess it's possible to get Ubuntu to see both, but that means getting under the hood in ways that I don't have time for right now.
