Hi, The statfs(2) page is missing the magic number for SMB2: SMB2_MAGIC_NUMBER 0xFE534D42 This is defined in fs/cifs/smb2glob.h . Perhaps it could be added. It being so numerically close to CIFS_MAGIC_NUMBER, coupled with `mount.cifs` producing an SMB2 mount (even though `mount` still reports a CIFS type), has sent me a little wild over the last few weeks. David Adam zanchey@xxxxxxxxxxxxxxxxx