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名 前

libguestfs-test-tool - libguestfs の 診 断

書 式

libguestfs-test-tool [--options]

説 明

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 complete, unedited output of the test tool into a bug report. More information about reporting bugs can be found on the http://libguestfs.org/ website.

オ プ シ ョ ン

--help 簡 単 な 使 用 法 を 表 示 し て 、 終 了 し ま す 。
--qemu qemu_binary

If you have downloaded another qemu binary, point this option at the full path of the binary to try it.

--qemudir qemu_source_dir

If you have compiled qemu from source, point this option at the source directory to try it.

-t N
--timeout N

Set the launch timeout to "N" seconds. The default is 600 seconds (10 minutes) which does not usually need to be adjusted.

--version

libguestfs の バ ー ジ ョ ン 番 号 を 表 示 し て 、 終 了 し ま す 。

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 --qemudir option to point to the qemu source directory.

If you have downloaded a qemu binary from somewhere, use the --qemu option to point to the binary.

Note when using these options, you can ignore the business of qemu wrapper scripts ("QEMU WRAPPERS" in guestfs(3)), since libguestfs-test-tool writes a wrapper script for you if one is needed.

TRYING OUT A DIFFERENT KERNEL

You can tell supermin to try a different kernel. You do this by setting the environment variables "SUPERMIN_KERNEL", "SUPERMIN_KERNEL_VERSION" and/or "SUPERMIN_MODULES".

Refer to "ENVIRONMENT VARIABLES" in supermin(1) for further information.

TRYING OUT A DIFFERENT VERSION OF LIBVIRT

To find out which backend is the default in your libguestfs package, do:

unset LIBGUESTFS_BACKEND
guestfish get-backend

If you are using the libvirt backend, then you can try out a different (eg. upstream) version of libvirt by running these commands (not as root):

killall libvirtd lt-libvirtd
~/path/to/libvirt/run libguestfs-test-tool

The first command kills any session "libvirtd" process(es) that may be running on the machine. The second command uses libvirt’s "run" script (in the top-level libvirt build directory) to set some environment variables so that the alternate version of libvirt is used to run the program.

TRYING OUT WITH / WITHOUT LIBVIRT

To find out which backend is the default in your libguestfs package, do:

unset LIBGUESTFS_BACKEND
guestfish get-backend

If you are using the libvirt backend, you can try without (ie. libguestfs directly launching qemu) by doing:

export LIBGUESTFS_BACKEND=direct

Or if you are using the default (direct) backend, then you can try libvirt:

export LIBGUESTFS_BACKEND=libvirt

or with libvirt and a specific libvirt URI:

export LIBGUESTFS_BACKEND=libvirt:qemu:///session

TRYING OUT DIFFERENT SELINUX SETTINGS

To find out which backend is the default in your libguestfs package, do:

unset LIBGUESTFS_BACKEND
guestfish get-backend

To find out if SELinux is being used, do:

getenforce

If you are using libvirt, SELinux and sVirt, then you can try to see if changing SELinux to "permissive" mode makes any difference. Use this command as root:

setenforce Permissive

If this makes a difference, look in the audit logs for recent failures ("AVCs"):

ausearch -m avc -ts recent

You can convert AVCs into suggested SELinux policy rules using tools like audit2allow(1). For more information, see the "Security Enhanced Linux User Guide".

To reenable SELinux and sVirt, do:

setenforce Enforcing

自 己 診 断

libguestfs-test-tool お よ び /ま た は 起 こ り う る エ ラ ー に よ り 生 成 さ れ る メ ッ セ ー ジ を 理 解 す る に は "ア プ ラ イ ア ン ス 起 動 プ ロ セ ス " in guestfs(3) を 参 照 し て く だ さ い 。

終 了 ス テ ー タ ス

libguestfs-test-tool returns 0 if the tests completed without error, or 1 if there was an error.

環 境 変 数

libguestfs に 影 響 す る 環 境 変 数 の 完 全 な 一 覧 は guestfs(3) マ ニ ュ ア ル ペ ー ジ を 参 照 し て く だ さ い 。

関 連 項 目

guestfs(3), http://libguestfs.org/, http://qemu.org/.

著 者

Richard W.M. Jones ("rjones at redhat dot com")

COPYRIGHT

Copyright (C) 2009-2023 Red Hat Inc.

LICENSE

BUGS

To get a list of bugs against libguestfs, use this link: https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools

To report a new bug against libguestfs, use this link: https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools

When reporting a bug, please supply: