Here steps how I did it. Debian 64Bit + SSD + RPI4
Finally got the Debian 10 64Bit image running on SSD on a RPi4
https://downloads.raspberrypi.org/raspios_arm64/images/raspios_arm64-2020-05-28/2020-05-27-raspios-buster-arm64.zip
Flash image on a SDCard. Add SDcard and your SSD to your RPi4
You can also add already ssh option and you wifi settings on the /boot/ partition of SDcard
Remove the old dphys version
sudo /etc/init.d/dphys-swapfile stop
sudo apt-get remove --purge dphys-swapfile
Refresh your OS
sudo apt-get update
sudo apt-get full-upgrade
Prepare RPi4 for USB Boot
Refresh your OS with the latest firmware
sudo nano /etc/default/rpi-eeprom-update
sudo rpi-eeprom-update -d -a
reboot
Install RPICLONE (For cloning from SDCard to my SSD, my SSD is /dev/sda, yours can be different)
git clone https://github.com/billw2/rpi-clone.git
cd rpi-clone
sudo cp rpi-clone rpi-clone-setup /usr/local/sbin
sudo rpi-clone sda
After RPICLONE is done open a new terminal window
nano /mnt/clone/boot/cmdconfig.txt
Add rootdelay=5 cgroup_memory=1 cgroup_enable=memory to the line and save the file.
Exit the terminal
shutdown now
Remove the SDCard and boot from SSD now.
Correct location and timezone
raspi-config
Install Docker
sudo -i
apt-get install software-properties-common -y
apt-get update
apt-get install modemmanager
reboot now
Reason I install modem manager first and reboot, because when do with network-manager my RPi freeze
apt-get install network-manager
apt-get install apparmor-utils apt-transport-https avahi-daemon ca-certificates curl dbus jq socat bash curl
curl -fsSL get.docker.com | sh
Install Hass.io
systemctl stop ModemManager
systemctl disable ModemManager
curl -sL https://raw.githubusercontent.com/home-assistant/supervised-installer/master/installer.sh | bash -s -- -m raspberrypi4
DONE