02-28-2008
device location codes
what is meant by device location codes? what is their format and how can i identify the location of a device in redhat linux?
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WIPEFS(8) MAINTENANCE COMMANDS WIPEFS(8)
NAME
wipefs - wipe a filesystem signature from a device
SYNOPSIS
wipefs [-ahnp] [-o offset] device
DESCRIPTION
wipefs allows to erase filesystem or raid signatures (magic strings) from the device to make the filesystem invisible for libblkid. 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 filesys-
tems and offsets of their signatures.
OPTIONS
-a, --all
Erase all available signatures.
-h, --help
Print help and exit.
-n, --no-act
Causes everything to be done except for the write() call.
-o, --offset offset
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.
-p, --parsable
Print out in parsable instead of printable format. Encode all potentially unsafe characters of a string to the corresponding hex
value prefixed by 'x'.
AUTHOR
Karel Zak <kzak@redhat.com>.
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/.
SEE ALSO
blkid(8) findfs(8)
Linux October 2009 WIPEFS(8)