How can I make a FAT partition work as drive C in virtual Windows?
Run winecfg in the “Sample WineLib Applications” folder, select the tab “drives” and in the list “C:” and change its path. If your FAT partition is named “Duckbill” enter “/Volumes/Duckbill” for example. You may change the type to “local harddisk” in the advanced options too. Changing the path directly in the WineHelper Preferences seems not to work satisfyingly. And lastly – please copy content of “~/.wine/drive_c” to the new place with the following command “cp -a ~/.