Here're the results of running your two commands:

Code:
Last login: Fri Jun 25 04:05:13 on ttys000
Artie-s-Computer-4:~ artie$ diskutil info /Volumes/HD
   Device Identifier:        disk0s2
   Device Node:              /dev/disk0s2
   Part Of Whole:            disk0
   Device / Media Name:      Untitled

   Volume Name:              HD
   Escaped with Unicode:     HD

   Mounted:                  Yes
   Mount Point:              /
   Escaped with Unicode:     /

   File System:              Journaled HFS+
   Type:                     hfs
   Name:                     Mac OS Extended (Journaled)
   Journal:                  Journal size 8192 KB at offset 0xca000
   Owners:                   Enabled

   Partition Type:           Apple_HFS
   Bootable:                 Is bootable
   Media Type:               Generic
   Protocol:                 SATA
   SMART Status:             Verified
   Volume UUID:              CAD72368-C0A0-36E4-B673-5E7A31C07396

   Total Size:               26.8 GB (26843545600 Bytes) (exactly 52428800 512-Byte-Blocks)
   Volume Free Space:        20.4 GB (20357443584 Bytes) (exactly 39760632 512-Byte-Blocks)

   Read-Only Media:          No
   Read-Only Volume:         No
   Ejectable:                No

   Whole:                    No
   Internal:                 Yes

Last login: Fri Jun 25 04:15:58 on ttys000
Artie-s-Computer-4:~ artie$ diskutil info /Volumes/HDx
   Device Identifier:        disk0s4
   Device Node:              /dev/disk0s4
   Part Of Whole:            disk0
   Device / Media Name:      Untitled

   Volume Name:              HDx
   Escaped with Unicode:     HDx

   Mounted:                  Yes
   Mount Point:              /Volumes/HDx
   Escaped with Unicode:     /Volumes/HDx

   File System:              Journaled HFS+
   Type:                     hfs
   Name:                     Mac OS Extended (Journaled)
   Journal:                  Journal size 8192 KB at offset 0x7a000
   Owners:                   Enabled

   Partition Type:           Apple_HFS
   Bootable:                 Is bootable
   Media Type:               Generic
   Protocol:                 SATA
   SMART Status:             Verified
   Volume UUID:              2EAC946F-FA02-3E98-8BD3-B6F9C5DA3786

   Total Size:               16.1 GB (16106127360 Bytes) (exactly 31457280 512-Byte-Blocks)
   Volume Free Space:        8.0 GB (8035516416 Bytes) (exactly 15694368 512-Byte-Blocks)

   Read-Only Media:          No
   Read-Only Volume:         No
   Ejectable:                No

   Whole:                    No
   Internal:                 Yes

Artie-s-Computer-4:~ artie$

and

Code:
Artie-s-Computer-4:~ artie$ sudo diff -qr /Volumes/source/sbin/ /Volumes/restore/sbin/ |grep '^Only in'
diff: /Volumes/source/sbin/: No such file or directory
diff: /Volumes/restore/sbin/: No such file or directory
Artie-s-Computer-4:~ artie$ -


The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire