http://bugs.winehq.org/show_bug.cgi?id=25024
--- Comment #8 from Alexandre Julliard julliard@winehq.org 2010-11-04 10:50:52 CDT --- (In reply to comment #7)
The device is open. I can see the directory list with the DIR command, I can type out a text file with the TYPE command. However, GetVolumeInformationW still reports this trace error. The device can't be opened by GetVolumeInformationW because of a bug in GetVolumeInformationW, no other reason.
No, the device and the file systems are two different things. You need access to the raw device (/dev/fd0 or so) to read label and serial.