I've downloaded your most recent OMV image and I can't login on the console using root or admin with the openmediavault password. Ditto for the web interface with user "admin" and passwd "openmediavault". I've flashed the emmc on 2 different CM4 modules with the image using the latest rpiboot and rpi-imager and am having the same problem with each. Should I be using a different user and password to get into the web interface of OMV?
The default password is "admin" for live mode. If you installed to eMMC or elsewhere (HDD/SSD) then you are prompted to enter a password during the installation process. We'll get this documented.