I have installed doxbox 0.72 from official website but I couldn't mount anything...The system boots from sd, and I got HOMM2 dos version in it. (in file manager it's N810/heroes2)

When dosbox starts, what shall I type in order to mount the folder? I typed mount c \user\media\mmc12\heroes2 it doesn't work, file doesn't exist. Can someone tell me what shall I type??

Many thanks!!