list disk (note the space)
Should show something like:
Code:
DISKPART> list disk
Disk ### Status Size Free Dyn Gpt
-------- ---------- ------- ------- --- ---
* Disk 0 Online 37 GB 0 B
DISKPART> select disk 0
Disk 0 is now the selected disk.
DISKPART> list partition
Partition ### Type Size Offset
------------- ---------------- ------- -------
Partition 1 OEM 24 MB 32 KB
Partition 2 Primary 37 GB 24 MB
Guess I'm being stubborn. Diskpart accesses the same structures as Disk Management but there's no room for gui confusion. (Just command confusion.)
Was the Mac OS X or pre? HFS+ or BSD filesystem? It should still show in Diskpart and Disk management, but as a foreign filesystem (volume) type.