The configuration file should be in a hidden folder (name starts with a . ) .dosbox within your home folder. With the file manager, the view menu has an check option to show hidden files and folders, or use Ctrl+H to toggle visibility of hidden files and folders.
In terminal:
Code:
dmn@Sydney:~$ ls .dosbox
backup dosbox-0.74.conf dosbox-0.74.conf.bak
The configuration file is dosbox-0.74.conf.
Running dosbox from the terminal should create a new folder and default configuration file if it is missing.
Bookmarks