Mount error with persistence file

[avggeek]

When using VBox to directly boot from a USB drive, you should use VMUB.
VMUB unlocks the USB drive so that VBox can lock the drive and does not have to use snapshotting.
https://rmprepusb.com/tutorials/004-how-...r-windows/

VMUB only works with VBox 5  (not VBOX6)

VBOX5+VMUB + Ventoy USb drive with Ubuntu + persistence .dat file works OK for me.

I'm on Windows 10 so VBOX5 is pretty much unsupported there. VBOX6 is the only thing that works (and just barely).

How did you test in VirtualBox?
Did you add your physical USB drive as a virtualdisk to the VM?  Or did you install Ventoy to a virtualdisk inside the VM?

I'm adding my physical USB drive as a virtualdisk to the VM.