zeero - Zero out disks prior to rewrite.
/usr/lbin/zeero [-d] [-f] device
-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 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
The zeero command writes zeros throughout a disk partition including the
disk label. You must be super user to use this command.
1. In the following example, the zeero command is used to overwrite par-
tition a with zeros.
2. In the following example, the zeero command is used to overwrite the
entire disk with zeros.