zeero(8)zeero(8)NAMEzeero - 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
FILESzeero(8)