Last login: Thu Nov 30 14:57:41 on console
hs-mac:~ hs$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *128.0 GB   disk0
   1:               Windows_NTFS                         128.0 GB   disk0s1
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *80.0 GB    disk1
   1:                        EFI                         209.7 MB   disk1s1
   2:                  Apple_HFS Snow Leopard            79.7 GB    disk1s2
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *40.0 GB    disk2
   1:                        EFI                         209.7 MB   disk2s1
   2:                  Apple_HFS Install OS X El Capitan 39.7 GB    disk2s2
hs-mac:~ hs$ diskutil mount disk2s1
Volume on disk2s1 failed to mount
hs-mac:~ hs$