| .\" -*- nroff -*- |
| .\" Copyright 2009 by Karel Zak. All Rights Reserved. |
| .\" This file may be copied under the terms of the GNU Public License. |
| .\" |
| .TH WIPEFS 8 "October 2009" "Linux" "MAINTENANCE COMMANDS" |
| .SH NAME |
| wipefs \- wipe a filesystem signature from a device |
| .SH SYNOPSIS |
| .B wipefs |
| .RB [ \-ahnp ] |
| .RB [ \-o |
| .IR offset ] |
| .I device |
| .SH DESCRIPTION |
| .B wipefs |
| allows to erase filesystem or raid signatures (magic strings) from the |
| .I device |
| to make the filesystem invisible for libblkid. |
| .B wipefs |
| does not erase the whole filesystem or any other data from the device. |
| When used without options -a or -o, it lists all visible filesystems and offsets |
| of their signatures. |
| .SH OPTIONS |
| .IP "\fB\-a, \-\-all\fP" |
| Erase all available signatures. |
| .IP "\fB\-h, \-\-help\fP" |
| Print help and exit. |
| .IP "\fB\-n, \-\-no\-act\fP" |
| Causes everything to be done except for the write() call. |
| .IP "\fB\-o, \-\-offset\fP \fIoffset\fP |
| Specifies location (in bytes) of the signature which should be erased from the |
| device. The offset number may include a "0x" prefix, and then the number will be |
| read as a hex value. It is possible to specify multiple -o options. |
| .IP "\fB\-p, \-\-parsable\fP" |
| Print out in parsable instead of printable format. Encode all potentially unsafe |
| characters of a string to the corresponding hex value prefixed by '\\x'. |
| .SH AUTHOR |
| Karel Zak <kzak@redhat.com>. |
| .SH AVAILABILITY |
| The wipefs command is part of the util-linux-ng package and is available from |
| ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/. |
| .SH SEE ALSO |
| .BR blkid (8) |
| .BR findfs (8) |
| |