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=encoding utf8
=head1 NAME
libguestfs-test-tool - Diagnostics for libguestfs
=head1 SYNOPSIS
libguestfs-test-tool [--options]
=head1 DESCRIPTION
libguestfs-test-tool is a test program shipped with libguestfs to
allow you to check basic libguestfs functionality is working. This is
needed because libguestfs occasionally breaks for reasons beyond our
control: usually because of changes in the underlying qemu or kernel
packages, or the host environment.
If you suspect a problem in libguestfs, then just run:
libguestfs-test-tool
It will print lots of diagnostic messages.
If it runs to completion successfully, you will see this near the end:
===== TEST FINISHED OK =====
and the test tool will exit with code 0.
If it fails (and/or exits with non-zero error code), please paste the
I<complete, unedited> output of the test tool into a bug report. More
information about reporting bugs can be found on the
L<http://libguestfs.org/> website.
=head1 OPTIONS
=over 4
=item B<--help>
Display short usage information and exit.
=item B<--qemu qemu_binary>
If you have downloaded another qemu binary, point this option at the
full path of the binary to try it.
=item B<--qemudir qemu_source_dir>
If you have compiled qemu from source, point this option at the source
directory to try it.
=item B<-t N>
=item B<--timeout N>
Set the launch timeout to C<N> seconds. The default is 600 seconds
(10 minutes) which does not usually need to be adjusted.
=back
=head1 TRYING OUT A DIFFERENT VERSION OF QEMU
If you have compiled another version of qemu from source and would
like to try that, then you can use the I<--qemudir> option to point to
the qemu source directory.
If you have downloaded a qemu binary from somewhere, use the I<--qemu>
option to point to the binary.
Note when using these options, you can ignore the business of qemu
wrapper scripts (L<guestfs(3)/QEMU WRAPPERS>), since
libguestfs-test-tool writes a wrapper script for you if one is needed.
=head1 TRYING OUT A DIFFERENT KERNEL
If you are using febootstrap E<ge> 3.8 then you can select which
kernel libguestfs tries. You do this by setting the environment
variables C<FEBOOTSTRAP_KERNEL> and/or C<FEBOOTSTRAP_MODULES>.
Refer to L<febootstrap-supermin-helper(8)/ENVIRONMENT VARIABLES>
for further information.
=head1 SELF-DIAGNOSIS
Refer to L<guestfs(3)/APPLIANCE BOOT PROCESS> to understand the
messages produced by libguestfs-test-tool and/or possible errors.
=head1 EXIT STATUS
libguestfs-test-tool returns I<0> if the tests completed without
error, or I<1> if there was an error.
=head1 ENVIRONMENT VARIABLES
For the full list of environment variables which may affect
libguestfs, please see the L<guestfs(3)> manual page.
=head1 SEE ALSO
L<guestfs(3)>,
L<http://libguestfs.org/>,
L<http://qemu.org/>.
=head1 AUTHORS
Richard W.M. Jones (C<rjones at redhat dot com>)
=head1 COPYRIGHT
Copyright (C) 2009-2011 Red Hat Inc.
L<http://libguestfs.org/>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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