I needed to restore an external USB-connected Toshiba disk drive from an image created with Disk Utility on a MacBook Pro running the OS X operating system. With the external disk drive attached, a diskutil command,
diskutil list
, showed the following:$ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.3 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_HFS Macintosh HD 499.4 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *13.8 MB disk2 1: Apple_HFS C_PGP2FV_B_A0 13.8 MB disk2s1 /dev/disk3 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk3 1: EFI EFI 209.7 MB disk3s1 2: Apple_HFS TOSHIBA EXT 499.8 GB disk3s2 3: Apple_Boot Boot OS X 134.2 MB disk3s3 $
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