As per release notes OTG should be supported. How can it be enabled? modprobe g_mass_storage is not working.
M2U OTG support problem
i have the same problem, i tried all available raspbian, armbian images, even the desktop ones; used all available patches and/or guides; recompiled the kernel but nothing to do it doesn’t work anyway
I gave up using it
In armbian it is not yet available, since it uses the main kernel and the node has not yet been added to the dts of M2-Ultra