Click this button to go to the index for this section.

zeero(8)
NAME
  zeero - Zero out disks prior to rewrite.

SYNOPSIS
  /usr/lbin/zeero [ -d ] [ -f ] device

DESCRIPTION
  The zeero command writes zeros throughout a disk partition including the
  disk label.  You must be super user to use this command.

FLAGS
  -d	    Specifies diagnostic mode.	Prints the total number of writes and
	    the exit errno.  An exit status of errno 28 indicates success;
	    zeros were written until the device ran out of space.

  -f	    Specifies silent mode.  This flag does not prompt for a response.
	    If the -f flag is not used, the user is warned that all data will
	    be erased from /dev/rrz?? and asked for an affirmative response
	    before continuing.

EXAMPLES
  In the following example, the zeero command is used to overwrite partition
  a with zeros.

       /usr/lbin/zeero /dev/rrz8a

  In the following example, the zeero command is used to overwrite the entire
  disk with zeros.

       /usr/lbin/zeero /dev/rrz8c

FILES
  /usr/lbin/zeero