RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1925029 - RHEL 8.2 - libguestfs error: libvirt hypervisor doesn’t support qemu or KVM
Summary: RHEL 8.2 - libguestfs error: libvirt hypervisor doesn’t support qemu or KVM
Keywords:
Status: CLOSED DUPLICATE of bug 1828681
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: libguestfs
Version: 8.2
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: 8.0
Assignee: Virtualization Maintenance
QA Contact: YongkuiGuo
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-02-04 09:04 UTC by xujin
Modified: 2021-02-08 09:40 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-02-08 09:39:59 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Error message (118.50 KB, image/png)
2021-02-04 09:04 UTC, xujin 		no flags Details
Here is the dnf.rpm.log. (193.46 KB, text/plain)
2021-02-04 09:39 UTC, xujin 		no flags Details
View All

Description xujin 2021-02-04 09:04:28 UTC 
Created attachment 1755001 [details]
Error message

Description of problem:

RHEL 8.2 pops up "libguestfs error: libvirt hypervisor doesn’t support qemu or KVM" when running virt-customize to update a qcow2 image

Please see the attachment. 

Version-Release number of selected component (if applicable):
qemu-kvm-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64


How reproducible:

Run the following command: 
# virt-customize --root-password password:redhat \
--uninstall cloud-init \
--selinux-relabel \
--hostname mytest
--ssh-inject root:file:/root/.ssh/ssh_public_key.pub\
-a mytest.qcow2



Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:

No error and it is complete successfully. 


Additional info:
Downgrade qemu-kvm package to the following version, and it works:  
qemu-kvm-2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64
Comment 1 Richard W.M. Jones 2021-02-04 09:24:14 UTC 
Could you please run:

libguestfs-test-tool

and attach the complete output to the bug.
Comment 2 xujin 2021-02-04 09:35:58 UTC 
Hi Richard, 

Thanks for your reply. 

If I recalled correctly, I will get the similar output as the libguestfs error. 

Sorry, I'm currently using the machine and the libvirt tool. So, I can't reproduce the environment at the moment. 

Can you please find a machine and reproduce it? 

Thank you. 


Best Regards
Edward
Comment 3 xujin 2021-02-04 09:39:25 UTC 
Created attachment 1755008 [details]
Here is the dnf.rpm.log.
Comment 4 Richard W.M. Jones 2021-02-04 10:01:27 UTC 
I really need the log.  We routinely test virt-customize and don't see this.
If you're unable to reproduce the bug then there's nothing I can do.
Comment 5 YongkuiGuo 2021-02-04 10:24:05 UTC 
Hi Edward,
I cannot reproduce this issue.

Version-Release number of selected component:
libguestfs-1.40.2-25.module+el8.3.0+7421+642fe24f.x86_64
qemu-kvm-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64

Steps:

1. On rhel8.3 host
# virt-customize --root-password password:redhat --uninstall cloud-init --selinux-relabel --hostname mytest --ssh-inject root:file:/root/.ssh/id_rsa.pub -a rhel-guest-image-8.3-401.x86_64.qcow2 
[   0.0] Examining the guest ...
[   8.8] Setting a random seed
[   8.9] Setting the machine ID in /etc/machine-id
[   8.9] Uninstalling packages: cloud-init
[  15.2] Setting the hostname: mytest
[  15.3] SSH key inject: root
[  18.2] Setting passwords
[  20.5] SELinux relabelling
[  39.6] Finishing off
Comment 6 xujin 2021-02-06 01:14:10 UTC 
Hi Yongkui and Richard, 

I've managed to reproduce the issue on my test machine, here is the output: 

[root@dell-r640-11 ssd_vms]# virt-customize --root-password password:redhat \
> --uninstall cloud-init \
> --selinux-relabel \
> --hostname mytest \
> --ssh-inject root:file:/root/.ssh/id_rsa.pub \
> -a mytest.qcow2
[   0.0] Examining the guest ...
virt-customize: error: libguestfs error: libvirt hypervisor doesn’t 
support qemu or KVM,
so we cannot create the libguestfs appliance.
The current backend is ‘libvirt’.
Check that the PATH environment variable is set and contains
the path to the qemu (‘qemu-system-*’) or KVM (‘qemu-kvm’, 
‘kvm’ etc).
Or: try setting:
  export LIBGUESTFS_BACKEND=libvirt:qemu:///session
Or: if you want to have libguestfs run qemu directly, try:
  export LIBGUESTFS_BACKEND=direct
For further help, read the guestfs(3) man page and libguestfs FAQ.

If reporting bugs, run virt-customize with debugging enabled and include 
the complete output:

  virt-customize -v -x [...]
[root@dell-r640-11 ssd_vms]# 
[root@dell-r640-11 ssd_vms]# 
[root@dell-r640-11 ssd_vms]# libguestfs-test-tool
     ************************************************************
     *                    IMPORTANT NOTICE
     *
     * When reporting bugs, include the COMPLETE, UNEDITED
     * output below in your bug report.
     *
     ************************************************************
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/opt/puppetlabs/bin:/root/bin
XDG_RUNTIME_DIR=/run/user/0
SELinux: Permissive
guestfs_get_append: (null)
guestfs_get_autosync: 1
guestfs_get_backend: libvirt
guestfs_get_backend_settings: []
guestfs_get_cachedir: /var/tmp
guestfs_get_hv: /usr/libexec/qemu-kvm
guestfs_get_memsize: 768
guestfs_get_network: 0
guestfs_get_path: /usr/lib64/guestfs
guestfs_get_pgroup: 0
guestfs_get_program: libguestfs-test-tool
guestfs_get_recovery_proc: 1
guestfs_get_smp: 1
guestfs_get_sockdir: /tmp
guestfs_get_tmpdir: /tmp
guestfs_get_trace: 0
guestfs_get_verbose: 1
host_cpu: x86_64
Launching appliance, timeout set to 600 seconds.
libguestfs: launch: program=libguestfs-test-tool
libguestfs: launch: version=1.40.2rhel=8,release=25.module+el8.3.0+7421+642fe24f,libvirt
libguestfs: launch: backend registered: unix
libguestfs: launch: backend registered: uml
libguestfs: launch: backend registered: libvirt
libguestfs: launch: backend registered: direct
libguestfs: launch: backend=libvirt
libguestfs: launch: tmpdir=/tmp/libguestfsJ1Ejso
libguestfs: launch: umask=0022
libguestfs: launch: euid=0
libguestfs: libvirt version = 6000000 (6.0.0)
libguestfs: guest random name = guestfs-tjglo379mok88oc6
libguestfs: connect to libvirt
libguestfs: opening libvirt handle: URI = qemu:///system, auth = default+wrapper, flags = 0
libguestfs: successfully opened libvirt handle: conn = 0x5559418be7d0
libguestfs: unable to read qemu version from libvirt: internal error: Cannot find suitable emulator for x86_64 [code=1 int1=-1]
libguestfs: get libvirt capabilities
libguestfs: parsing capabilities XML
libguestfs: error: libvirt hypervisor doesn’t support qemu or KVM,
so we cannot create the libguestfs appliance.
The current backend is ‘libvirt’.
Check that the PATH environment variable is set and contains
the path to the qemu (‘qemu-system-*’) or KVM (‘qemu-kvm’, ‘kvm’ etc).
Or: try setting:
  export LIBGUESTFS_BACKEND=libvirt:qemu:///session
Or: if you want to have libguestfs run qemu directly, try:
  export LIBGUESTFS_BACKEND=direct
For further help, read the guestfs(3) man page and libguestfs FAQ.
libguestfs: closing guestfs handle 0x5559418bc930 (state 0)
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsJ1Ejso
[root@dell-r640-11 ssd_vms]# 



To reproduce the issue, I've upgraded the version of qemu-kvm: 

[root@dell-r640-11 HANA2SPS04]# yum update qemu-kvm-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64
Updating Subscription Management repositories.
/usr/lib/python3.6/site-packages/dateutil/parser/_parser.py:70: UnicodeWarning: decode() called on unicode string, see https://bugzilla.redhat.com/show_bug.cgi?id=1693751
  instream = instream.decode()

This system is registered to Red Hat Subscription Management, but is not receiving updates. You can use subscription-manager to assign subscriptions.
Last metadata expiration check: 1:51:49 ago on Fri 05 Feb 2021 11:12:40 PM UTC.
Dependencies resolved.
=============================================================================================================================================================================
 Package                               Architecture          Version                                                   Repository                                       Size
=============================================================================================================================================================================
Upgrading:
 qemu-img                              x86_64                15:4.2.0-34.module+el8.3.0+7976+077be4ec                  rhel-8-for-x86_64-appstream-rpms                1.0 M
 qemu-kvm                              x86_64                15:4.2.0-34.module+el8.3.0+7976+077be4ec                  rhel-8-for-x86_64-appstream-rpms                107 k
 qemu-kvm-block-curl                   x86_64                15:4.2.0-34.module+el8.3.0+7976+077be4ec                  rhel-8-for-x86_64-appstream-rpms                118 k
 qemu-kvm-block-gluster                x86_64                15:4.2.0-34.module+el8.3.0+7976+077be4ec                  rhel-8-for-x86_64-appstream-rpms                119 k
 qemu-kvm-block-iscsi                  x86_64                15:4.2.0-34.module+el8.3.0+7976+077be4ec                  rhel-8-for-x86_64-appstream-rpms                125 k
 qemu-kvm-block-rbd                    x86_64                15:4.2.0-34.module+el8.3.0+7976+077be4ec                  rhel-8-for-x86_64-appstream-rpms                119 k
 qemu-kvm-block-ssh                    x86_64                15:4.2.0-34.module+el8.3.0+7976+077be4ec                  rhel-8-for-x86_64-appstream-rpms                120 k
 qemu-kvm-common                       x86_64                15:4.2.0-34.module+el8.3.0+7976+077be4ec                  rhel-8-for-x86_64-appstream-rpms                1.2 M
 qemu-kvm-core                         x86_64                15:4.2.0-34.module+el8.3.0+7976+077be4ec                  rhel-8-for-x86_64-appstream-rpms                3.4 M

Transaction Summary
=============================================================================================================================================================================
Upgrade  9 Packages

Total download size: 6.3 M
Is this ok [y/N]: y
Downloading Packages:
(1/9): qemu-kvm-block-iscsi-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64.rpm                                                                 150 kB/s | 125 kB     00:00    
(2/9): qemu-kvm-common-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64.rpm                                                                      1.3 MB/s | 1.2 MB     00:00    
(3/9): qemu-kvm-core-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64.rpm                                                                        3.3 MB/s | 3.4 MB     00:01    
(4/9): qemu-kvm-block-rbd-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64.rpm                                                                   319 kB/s | 119 kB     00:00    
(5/9): qemu-kvm-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64.rpm                                                                             207 kB/s | 107 kB     00:00    
(6/9): qemu-kvm-block-curl-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64.rpm                                                                  310 kB/s | 118 kB     00:00    
(7/9): qemu-img-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64.rpm                                                                             1.3 MB/s | 1.0 MB     00:00    
(8/9): qemu-kvm-block-ssh-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64.rpm                                                                   140 kB/s | 120 kB     00:00    
(9/9): qemu-kvm-block-gluster-4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64.rpm                                                               136 kB/s | 119 kB     00:00    
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                        2.6 MB/s | 6.3 MB     00:02     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                     1/1 
  Running scriptlet: qemu-kvm-common-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                     1/1 
  Upgrading        : qemu-kvm-common-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                    1/18 
  Running scriptlet: qemu-kvm-common-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                    1/18 
  Upgrading        : qemu-kvm-block-iscsi-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                               2/18 
  Upgrading        : qemu-kvm-block-rbd-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                 3/18 
  Upgrading        : qemu-kvm-block-curl-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                4/18 
  Upgrading        : qemu-kvm-block-ssh-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                 5/18 
  Upgrading        : qemu-kvm-block-gluster-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                             6/18 
  Upgrading        : qemu-img-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                           7/18 
  Upgrading        : qemu-kvm-core-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                      8/18 
  Running scriptlet: qemu-kvm-core-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                      8/18 
  Upgrading        : qemu-kvm-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                           9/18 
  Cleanup          : qemu-kvm-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                       10/18 
  Cleanup          : qemu-kvm-core-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                  11/18 
  Cleanup          : qemu-kvm-block-curl-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                            12/18 
  Cleanup          : qemu-kvm-block-gluster-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                         13/18 
  Cleanup          : qemu-kvm-block-iscsi-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                           14/18 
  Cleanup          : qemu-kvm-block-rbd-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                             15/18 
  Cleanup          : qemu-kvm-block-ssh-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                             16/18 
  Running scriptlet: qemu-kvm-common-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                17/18 
  Cleanup          : qemu-kvm-common-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                17/18 
  Running scriptlet: qemu-kvm-common-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                17/18 
  Cleanup          : qemu-img-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                       18/18 
  Running scriptlet: qemu-img-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                       18/18 
  Verifying        : qemu-kvm-common-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                    1/18 
  Verifying        : qemu-kvm-common-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                 2/18 
  Verifying        : qemu-kvm-core-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                      3/18 
  Verifying        : qemu-kvm-core-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                   4/18 
  Verifying        : qemu-kvm-block-iscsi-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                               5/18 
  Verifying        : qemu-kvm-block-iscsi-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                            6/18 
  Verifying        : qemu-kvm-block-rbd-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                 7/18 
  Verifying        : qemu-kvm-block-rbd-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                              8/18 
  Verifying        : qemu-kvm-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                           9/18 
  Verifying        : qemu-kvm-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                       10/18 
  Verifying        : qemu-img-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                          11/18 
  Verifying        : qemu-img-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                                       12/18 
  Verifying        : qemu-kvm-block-curl-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                               13/18 
  Verifying        : qemu-kvm-block-curl-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                            14/18 
  Verifying        : qemu-kvm-block-ssh-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                                15/18 
  Verifying        : qemu-kvm-block-ssh-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                             16/18 
  Verifying        : qemu-kvm-block-gluster-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                                                                            17/18 
  Verifying        : qemu-kvm-block-gluster-15:2.12.0-99.module+el8.2.0+7988+c1d02dbb.4.x86_64                                                                         18/18 
Installed products updated.

Upgraded:
  qemu-img-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                             qemu-kvm-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                              
  qemu-kvm-block-curl-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                  qemu-kvm-block-gluster-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                
  qemu-kvm-block-iscsi-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                 qemu-kvm-block-rbd-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                    
  qemu-kvm-block-ssh-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                   qemu-kvm-common-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                       
  qemu-kvm-core-15:4.2.0-34.module+el8.3.0+7976+077be4ec.x86_64                       

Complete!
Comment 7 Richard W.M. Jones 2021-02-06 09:43:01 UTC 
Do you have package libvirt-daemon-kvm installed?
Comment 8 YongkuiGuo 2021-02-07 10:54:24 UTC 
I can reproduce this issue. 

Steps:

1. Install libguestfs packages on rhel8.2 host
2. Enable rhel8.3 repo in rhel8.2 host
3. Update libguestfs and qemu-kvm packages
4. Run libgeustfs-test-tool and the error is shown as above
5. Check the libvirtd service status
internal error: Failed to start QEMU binary /usr/libexec/qemu-kvm for probing: qemu-kvm: cannot initialize crypto: Unable to initialize gcrypt

In fact, The Bug 1828681 (Unable to initialize gcrypt will prevent qemu related commands from running) is the root cause of this issue.

Solution:

# yum update libgcrypt
Comment 9 xujin 2021-02-08 03:12:59 UTC 
Hi Yongkai, 

The issue has been solved after updating libgcrypt package. 

Feel free to archive this bug. Thank you. 

[root@dell-r640-11 ssd_vms]# yum update libgcrypt
Updating Subscription Management repositories.
/usr/lib/python3.6/site-packages/dateutil/parser/_parser.py:70: UnicodeWarning: decode() called on unicode string, see https://bugzilla.redhat.com/show_bug.cgi?id=1693751
  instream = instream.decode()

This system is registered to Red Hat Subscription Management, but is not receiving updates. You can use subscription-manager to assign subscriptions.
Last metadata expiration check: 0:05:07 ago on Mon 08 Feb 2021 02:40:39 AM UTC.
Dependencies resolved.
=============================================================================================================================================================================
 Package                             Architecture                     Version                                  Repository                                               Size
=============================================================================================================================================================================
Upgrading:
 libgcrypt                           x86_64                           1.8.5-4.el8                              rhel-8-for-x86_64-baseos-rpms                           463 k

Transaction Summary
=============================================================================================================================================================================
Upgrade  1 Package

Total download size: 463 k
Is this ok [y/N]: y
Downloading Packages:
libgcrypt-1.8.5-4.el8.x86_64.rpm                                                                                                             879 kB/s | 463 kB     00:00    
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                        875 kB/s | 463 kB     00:00     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                     1/1 
  Upgrading        : libgcrypt-1.8.5-4.el8.x86_64                                                                                                                        1/2 
  Running scriptlet: libgcrypt-1.8.5-4.el8.x86_64                                                                                                                        1/2 
  Cleanup          : libgcrypt-1.8.3-4.el8.x86_64                                                                                                                        2/2 
  Running scriptlet: libgcrypt-1.8.3-4.el8.x86_64                                                                                                                        2/2 
  Verifying        : libgcrypt-1.8.5-4.el8.x86_64                                                                                                                        1/2 
  Verifying        : libgcrypt-1.8.3-4.el8.x86_64                                                                                                                        2/2 
Installed products updated.

Upgraded:
  libgcrypt-1.8.5-4.el8.x86_64                                                                                                                                               

Complete!
[root@dell-r640-11 ssd_vms]# libguestfs-test-tool
     ************************************************************
     *                    IMPORTANT NOTICE
     *
     * When reporting bugs, include the COMPLETE, UNEDITED
     * output below in your bug report.
     *
     ************************************************************
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/opt/puppetlabs/bin:/root/bin
XDG_RUNTIME_DIR=/run/user/0
SELinux: Permissive
guestfs_get_append: (null)
...
guestfsd: => internal_autosync (0x11a) took 0.03 secs
libguestfs: calling virDomainDestroy flags=VIR_DOMAIN_DESTROY_GRACEFUL
libguestfs: closing guestfs handle 0x561c5230c930 (state 0)
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsOS7RVb
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsboypza
===== TEST FINISHED OK =====
[root@dell-r640-11 ssd_vms]# 
[root@dell-r640-11 ssd_vms]# 
[root@dell-r640-11 ssd_vms]# virt-customize --root-password password:redhat \
>  --uninstall cloud-init \
>  --selinux-relabel \
>  --hostname mytest \
>  --ssh-inject root:file:/root/.ssh/id_rsa.pub \
>  -a mytest.qcow2
[   0.0] Examining the guest ...
[   5.4] Setting a random seed
[   5.5] Uninstalling packages: cloud-init
[   9.1] Setting the hostname: mytest
[   9.2] SSH key inject: root
[  10.8] Setting passwords
[  11.9] SELinux relabelling
[  20.8] Finishing off
[root@dell-r640-11 ssd_vms]# 


Best Regards
Edward
Comment 10 Richard W.M. Jones 2021-02-08 09:39:59 UTC 
Yes I agree also with yoguo's analysis in comment 8, thanks for finding that!
I'm going to mark this as duplicate since it has been resolved for the user.

*** This bug has been marked as a duplicate of bug 1828681 ***
Note You need to log in before you can comment on or make changes to this bug.