-bash-3.2# sysctl hw.model
hw.model: iMac18,3
-bash-3.2# sw_vers -productVersion
10.13.6
-bash-3.2# diskutil info /
Device Identifier: disk2s1
Device Node: /dev/disk2s1
Whole: No
Part of Whole: disk2
Volume Name: OS X Base System
Mounted: Yes
Mount Point: /
Partition Type: Apple_HFS
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: A9B8826A-0097-3FBF-90D1-31A71529AF8B
Disk / Partition UUID: 9F36FF5F-86E8-472A-A13F-AE9DBFB03732
Partition Offset: 20480 Bytes (40 512-Byte-Device-Blocks)
Disk Size: 2.0 GB (2013200384 Bytes) (exactly 3932032 512-Byte-Units)
Device Block Size: 512 Bytes
Volume Total Space: 2.0 GB (2013200384 Bytes) (exactly 3932032 512-Byte-Units)
Volume Used Space: 1.3 GB (1293524992 Bytes) (exactly 2526416 512-Byte-Units) (64.3%)
Volume Free Space: 719.7 MB (719675392 Bytes) (exactly 1405616 512-Byte-Units) (35.7%)
Allocation Block Size: 4096 Bytes
Read-Only Media: No
Read-Only Volume: Yes
Device Location: External
Removable Media: Fixed
-bash-3.2# diskutil List
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_APFS Container disk3 1000.0 GB disk0s2
/dev/disk1 (internal):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme 28.0 GB disk1
1: EFI EFI 314.6 MB disk1s1
2: Apple_APFS Container disk3 27.7 GB disk1s2
/dev/disk2 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme +2.1 GB disk2
1: Apple_HFS OS X Base System 2.0 GB disk2s1
/dev/disk3 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +1.0 TB disk3
Physical Stores disk1s2, disk0s2
1: APFS Volume Preboot 28.7 KB disk3s2
2: APFS Volume Recovery 20.5 KB disk3s3
3: APFS Volume VM 2.2 GB disk3s4
4: APFS Volume Macintosh HD 41.0 KB disk3s5
/dev/disk4 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +5.2 MB disk4
/dev/disk5 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk5
/dev/disk6 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk6
/dev/disk7 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk7
/dev/disk8 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk8
/dev/disk9 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk9
/dev/disk10 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk10
/dev/disk11 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +12.6 MB disk11
/dev/disk12 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +4.2 MB disk12
/dev/disk13 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +1.0 MB disk13
/dev/disk14 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk14
/dev/disk15 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk15
/dev/disk16 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk16
/dev/disk17 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +1.0 MB disk17
/dev/disk18 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +6.3 MB disk18
/dev/disk19 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +6.3 MB disk19
/dev/disk20 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +524.3 KB disk20
/dev/disk21 (disk image):
#: TYPE NAME SIZE IDENTIFIER
0: untitled +2.1 MB disk21