La scheda SD si presenta come interna in Utility Disco

Recentemente ho installato Sierra sulla mia scheda sandisk 32 GB sd che non era avviabile dopo averlo formattato e si presenta come Internal come posso risolvere questo problema?

output dell'elenco diskutil:

$ /dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage Macintosh HD            120.5 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

/dev/disk1 (internal, virtual):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           +120.1 GB   disk1
                                 Logical Volume on disk0s2
                                 C8FBDE46-9264-4EF1-8287-2AA808659654
                                 Unencrypted

/dev/disk2 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *31.9 GB    disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:                  Apple_HFS SD CARD                 31.6 GB    disk2s2