SOQuartz Software Releases
Manjaro ARM is a user friendly rolling release distribution, based on Arch Linux ARM.
Release 20220718 and older don't boot on SOQuartz. If you find any image that works please update this page with the details.
For headless installation, simply enter "root" at the login: prompt and complete setup.
pgwipeout's Quartz CI
pgwipeout's Quartz CI includes a Debian installer image for the SOQuartz, with the CM4 I/O board as the base board. To download, click the "Download artifacts" button on the right hand side, unzip the archive and take a peek inside the "images" folder to see the selection of pre-built images. Assuming your target device is /dev/sdX, you can flash it with:
sudo -i xzcat /path/to/rk3566-soquartz-cm4.dtb.img.xz > /dev/sdX
You will need 3.3V UART at 1.5 mbauds (1500000) to access the interface.
Currently the latest image built on 16.07.2022 doesn't work. If anyone manages to get it working please update this page with the details of which release works.
Custom Debian image from user PBXForums
PBXForums shared a custom built Debian image that appears to work to some degree in this GitHub issue:
Armbian Ubuntu Jammy with kernel 5.19.7
A better image, IMHO that the one I shared above. This is a regular Balbes150 image for the Quartz A but with a working uboot and a changed DTB.
Burn the image to SD/EMMC
Boot up you module, give it a couple of minutes to resize sdcard/emmc and then find its IP
Log in via SSH root/1234 and it will take you through the armbian first boot process.
DietPi support with Debian/Bullseye
Info and downloads: https://dietpi.com/docs/hardware/#pine64
James Chambers did a soquartz review, and recommends the Armbian build from above.