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zeero(8)							      zeero(8)

NAME
       zeero - Zero out disks prior to rewrite.

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

OPTIONS
       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.	Specifies silent mode.
       This option does not prompt for a response.  If the -f  option  is  not
       used,   the   user  is  warned  that  all  data	will  be  erased  from
       /dev/rdisk/dsk??	 and asked for an affirmative response before continu‐
       ing.

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

EXAMPLES
       In the following example, the zeero command is used to overwrite parti‐
       tion  a	with zeros.  /usr/lbin/zeero /dev/rdisk/dsk1a In the following
       example, the zeero command is used to overwrite the  entire  disk  with
       zeros.  /usr/lbin/zeero /dev/rdisk/dsk0c

FILES
								      zeero(8)

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