osx man page for devinfo

devinfo(1M)						  System Administration Commands					       devinfo(1M)

NAME
       devinfo - print device specific information

SYNOPSIS
       /usr/sbin/devinfo -i device

       /usr/sbin/devinfo -p device

DESCRIPTION
       The  devinfo  command  is used to print device specific information about disk devices on standard out. The command can only be used by the
       superuser.

OPTIONS
       -i	Prints the following device information:

		  o  Device name

		  o  Software version (not supported and prints as 0)

		  o  Drive id number (not supported and prints as 0)

		  o  Device blocks per cylinder

		  o  Device bytes per block

		  o  Number of device partitions with a block size greater than zero

       -p	Prints the following device partition information:

		  o  Device name

		  o  Device major and minor numbers (in hexadecimal)

		  o  Partition start block

		  o  Number of blocks allocated to the partition

		  o  Partition flag

		  o  Partition tag

       This command is used by various other commands to obtain device specific  information for the making of file systems and determining parti-
       tion  information. If the device cannot be opened, an error message is reported.

OPERANDS
       device	Device name.

EXIT STATUS
       0	Successful operation.

       2	Operation failed.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       prtvtoc(1M), attributes(5)

SunOS 5.10							    8 May 1997							       devinfo(1M)