- Format the USB with "Master boot record set", providing it with a "MYDISK" title (see 1, 2)
- run
diskutil list
Eugenes-MacBook-Pro:haystack gmile$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *750.2 GB disk0
1: EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 749.3 GB disk0s2