alexandrdvorkin@Alexandrs-iMac ~ % diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk1         398.8 GB   disk0s2
   3:        Bios Boot Partition                         1.0 MB     disk0s3
   4:           Linux Filesystem                         50.0 GB    disk0s4
   5:                 Linux Swap                         10.0 GB    disk0s5
   6:                        EFI NO NAME                 20.0 GB    disk0s6
                    (free space)                         21.1 GB    -

/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +398.8 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume Untitled - Data         55.5 GB    disk1s1
   2:                APFS Volume Preboot                 4.5 GB     disk1s2
   3:                APFS Volume Recovery                1.1 GB     disk1s3
   4:                APFS Volume Untitled                9.0 GB     disk1s4
   5:              APFS Snapshot com.apple.bless.EE49... 9.0 GB     disk1s4s1
   6:                APFS Volume VM                      1.1 MB     disk1s6

/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *15.9 GB    disk2
   1:                       0x17                         1.6 GB     disk2s1
                    (free space)                         14.3 GB    -

alexandrdvorkin@Alexandrs-iMac ~ %