Partition map (with 512 byte blocks) on '/dev/rdisk0'
 #:                type name        length   base      ( size )
 1: Apple_partition_map Apple           63 @ 1        
 2:          Apple_Free             262144 @ 64        (128.0M)
 3:           Apple_HFS Untitled 976510950 @ 262208    (465.6G)
 4:          Apple_Free                 10 @ 976773158

Device block size=512, Number of Blocks=976773168 (465.8G)
DeviceType=0x0, DeviceId=0x0


Partition map (with 512 byte blocks) on '/dev/rdisk1'
 #:                type name                    length   base      ( size )
 1: Apple_partition_map Apple                       63 @ 1        
 2:          Apple_Free                         262144 @ 64        (128.0M)
 3:           Apple_HFS Apple_HFS_Untitled_1 976510944 @ 262208    (465.6G)
 4:          Apple_Free                             16 @ 976773152

Device block size=512, Number of Blocks=976773168 (465.8G)
DeviceType=0x0, DeviceId=0x0