> I don’t know how it’s configured on Ubuntu by default. Do something like: > mame -showconfig | egrep '^(input|snapshot)_directory\>' > That should show you the configured directories for those things.
These path options default to "inp" and "snap", but the standard distribution doesn't include those directories. This is likely due to the fact that git doesn't support empty directories in repositories; the existence of the dummy file roms/dir.txt is a partial workaround for this.