GideonZ
Reading empty directory if drive/partition number is specified
On the 1541U2+L version 3.10j:
When no disk image is mounted, loading "$0" will result in an empty directory even if there are files in the current directory. To be compatible with Commodore DOS software that specifies drive number or partition number, it should be possible to specify a drive number of 0 at least even if partitions aren't supported.
With JiffyDOS: @$0
Without JiffyDOS: LOAD"$0",dv
Partitions are supported, actually. You can access different partitions with the CP command.
Have you tried "0:$"?
(And yes, there are many differences between Commodore & CMD DOS and the Software IEC. This needs to be rectified at some point.)
That should result in "file not found" since $ isn't really a file, but a command. But I can try anyway just to see what happens.