libguestfs-test-tool - libguestfs の診断
libguestfs-test-tool [--options]
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.
- --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.
- -V
- --version
- libguestfs
のバージョン番号を表示して、終了します。
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.
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.
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.
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
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
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。
libguestfs-test-tool returns
0 if the tests completed without error, or
1 if there was an error.
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。
guestfs(3),
http://libguestfs.org/,
http://qemu.org/.
Richard W.M. Jones ("rjones at redhat dot com")
Copyright (C) 2009-2020 Red Hat Inc.
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:
- •
- The version of libguestfs.
- •
- Where you got libguestfs (eg. which Linux distro, compiled
from source, etc)
- •
- Describe the bug accurately and give a way to reproduce
it.
- •
- Run and paste the
complete, unedited output into the bug report.