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