Peahead I will just copy my older post BZZ :
Also the fastest way to transfer roms is either via network or by plugin the USB/HDD/SSD to your main PC and just copy paste. You seem to be making it complicated ;-)
Programs like EasyBCD or LinuxReader are simpler to use as well to read the linux partition under windows rather than running another linux distribution just to copy roms ;-) (BZZ )That is if I understood you correctly.\
There is also this if you're interested: "The next Windows update is coming soon and we’re bringing exciting new updates to WSL with it! These include accessing the Linux file system from Windows, and improvements to how you manage and configure your distros in the command line." https://devblogs.microsoft.com/commandline/whats-new-for-wsl-in-windows-10-version-1903/