52 lines
1.8 KiB
Groff
52 lines
1.8 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" "util-linux" "System Administration"
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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 [ \-ahnpV ]
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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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can erase filesystem or raid signatures (magic strings) from the specified
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.I device
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to make the filesystem invisible for libblkid.
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.B wipefs
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does not erase the filesystem itself nor any other data from the device.
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When used without options \fB-a\fR or \fB-o\fR, it lists all visible filesystems
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and the offsets 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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Specify the location (in bytes) of the signature which should be erased from the
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device. The \fIoffset\fR number may include a "0x" prefix; then the number will be
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interpreted as a hex value. It is possible to specify multiple \fB-o\fR options.
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The \fIoffset\fR argument may be followed by binary (2^N) suffixes KiB, MiB,
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GiB, TiB, PiB and EiB (the "iB" is optional, e.g. "K" has the same meaning as
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"KiB") or decimal (10^N) suffixes KB, MB, GB, PB and EB.
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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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.IP "\fB\-V, \-\-version\fP"
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Output version information and exit.
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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 package and is available from
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ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
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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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