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.\"
.IX Title "FS_UUID 1"
.TH FS_UUID 1 "2021-12-09" "OpenAFS" "AFS Command Reference"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
fs_uuid \- Prints the uuid of the client or generates a new one
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBfs uuid\fR [\fB\-generate\fR] [\fB\-help\fR]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBfs uuid\fR prints the current \s-1UUID\s0 of an OpenAFS client.  It can
optionally force the generation of a new \s-1UUID\s0, if needed.  The client \s-1UUID\s0
is used by the \fBfileserver\fR to differentiate clients with the same \s-1IP\s0
address.
.SH "CAUTIONS"
.IX Header "CAUTIONS"
The \fBfs uuid\fR command is only available in OpenAFS versions after 1.4.5
and 1.5.8.  The behavior differs slightly between versions.  In OpenAFS
1.4.5 and later, the \fB\-generate\fR option is required and the \s-1UUID\s0 for the
client machine is never printed.  OpenAFS versions 1.5.8 and later will
print the \s-1UUID\s0.
.SH "OPTIONS"
.IX Header "OPTIONS"
.IP "\fB\-generate\fR" 4
.IX Item "-generate"
Generates a new \s-1UUID\s0 for the cache manager.  This is useful if two clients
share the same \s-1UUID\s0 (if systems were cloned incorrectly, for example).
\&\fB\-generate\fR is optional in OpenAFS versions 1.5.8 and later, but it is
required in OpenAFS versions 1.4.5 and later.
.IP "\fB\-help\fR" 4
.IX Item "-help"
Prints the online help for this command.  All other valid options are
ignored.
.SH "OUTPUT"
.IX Header "OUTPUT"
\&\fBfs uuid\fR prints out the current \s-1UUID\s0 for the client or the new \s-1UUID\s0
if the \fB\-generate\fR option is passed to it.
.SH "EXAMPLES"
.IX Header "EXAMPLES"
There are only two ways to invoke \fBfs uuid\fR under 1.5.8 and later:
.PP
.Vb 2
\&   % fs uuid
\&   UUID: 8ac66f9308a8e\-47d7\-80f7\-50d0040cddc2
\&
\&   % fs uuid \-generate
\&   New UUID: 436bd660\-1720\-429508e470cff38f5c6fb0
.Ve
.PP
Here is the only way to invoke \fBfs uuid\fR under OpenAFS 1.4.5 and later:
.PP
.Vb 2
\&   % fs uuid \-generate
\&   New uuid generated.
.Ve
.SH "PRIVILEGE REQUIRED"
.IX Header "PRIVILEGE REQUIRED"
The issuer must be logged on as the local superuser \f(CW\*(C`root\*(C'\fR.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIfs\fR\|(1)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2007 Jason Edgecombe <jason@rampaginggeek.com>
.PP
This documentation is covered by the \s-1BSD\s0 License as written in the
doc/LICENSE file. This man page was written by Jason Edgecombe for
OpenAFS.