How to Install 64-Bit OS on RPi 4 (4Gb) and get FutureBit Apollo BTC Standalone miner working


Get 64-Bit Raspberry Pi Image
https://downloads.raspberrypi.org/raspios_arm64/images/
Image with Pi Imager
Have to use Custom Image option for now as 64-bit version is not listed.
Raspberry Pi Imager Tool (https://www.raspberrypi.org/downloads/ )

Boot RPi with new card
Perform normal settings (SSH, Wifi, password, etc.)
Optionally:  sudo apt update && sudo apt upgrade to get all updates applied.

Download RPi software from:
https://github.com/jstefanop/Apollo-Miner-Binaries/releases/
Get the aarch64 files and download and expand to folder of your choice
These are the Apollo miner executable along with start/stop scripts
Scripts will need editing for the user’s pool information, otherwise your mining power will benefit someone else.   

Install Prerequisites for Apollo Miner
Sudo apt-get install screen
Required for the Start_all script

Update Libstdc++ code
Append a line to file “/etc/apt/sources.list”
Type: Sudo nano /etc/apt/sources.list to edit the file.
Add this line:    deb http://deb.debian.org/debian sid main 
Ctrl-w, Ctrl-x to save and exit.
Then run
sudo apt update
sudo apt-get install --only-upgrade libstdc++6

Confirm your Standalone Apollo-BTC is visible:
ls /dev/ttyACM*
You should see this form of output for each attached standalone miner:  /dev/ttyACM0

Cd into your miner folder and type this to get started:
sudo ./start_apollo.sh
Or this if you have more than one unit:    sudo ./miner_start_all.sh