Hi Chris (sorry for the previous mispel),
I installed oVirt 4.4.8 on top on CentOS 8 (Stream and standard), never
used Node ISO. Maybe enabling external repo? In a "test" server try to
install the following rpm and then downgrade libvirt:
http://resources.ovirt.org/pub/yum-repo/ovirt-release44.rpm
Regards,
Francesco
Il 14/03/2022 18:31, Christopher Law ha scritto:
Thanks Francesco, it looks like a fix has been put into oVirt 4.5
which is scheduled for general release on the 12^th April.
I’m using an oVirt Node ISO (4.4.10) install on the host are you doing
the same or did you install oVirt on top of a standard centos install
yourself?
I did try a dnf downgrade libvirt but it said there were no previous
packages available. Just doing a re-install so will try your provided
commands in a moment.
Cheers,
Chris.
*From:*Francesco Lorenzini <france...@shellrent.com>
*Sent:* 14 March 2022 17:23
*To:* Christopher Law <ch...@chrislaw.me>; Milan Zamazal
<mzama...@redhat.com>
*Cc:* francesco--- via Users <users@ovirt.org>
*Subject:* Re: [ovirt-users] Re: Console - VNC password is 12
characters long, only 8 permitted
Hi Crhis,
I didn't resolve properly, I found that downgrading libvirt was the
fastest workaround.
Just downgrade libvirt via yum/dnf to to version 7.10. I added the
downgrade in an Ansible task, if you are practical:
- name: Ensure libvirt-7.10.0 is installed
yum:
name: libvirt-7.10.0
state: present
update_cache: true
allow_downgrade: true
ignore_errors: true
or via cli :
yum install libvirt-7.10.0
Post dowgrade we performed a restart of vdsm (or super-vdsm, or both,
I don't remember). The downgrade is quite safe, we didn't encounter
any problem with existing hosts and new deployed one.
Francesco
Il 14/03/2022 15:58, Christopher Law ha scritto:
Hi -
Did anyone get a solution to this. I just upgraded our physical
ovirt-engine to 4.4.10 and added a freshly installed oVirt Node 4.4.10, and I'm
getting this issue.
Given libvirt8 is part of oVirt Node 4.4.10 base install I was hoping for a
fix. Also seen a fix applied
here:https://github.com/oVirt/ovirt-engine/commit/a1e7e39348550b575f1f01b701105f9e1066b09f
but not sure if this has been released?
What are my options, not quite sure how to downgrade libvirt in oVirt Node.
I was planning on trying to install 4.4.9, but not sure if the ansible scripts
will update it automatically when adding it to the cluster.
Francesco - Did you get this resolved?
Cheers,
Chris.
-----Original Message-----
From: Milan Zamazal<mzama...@redhat.com> <mailto:mzama...@redhat.com>
Sent: 14 February 2022 18:04
To: Francesco Lorenzini<france...@shellrent.com>
<mailto:france...@shellrent.com>
Cc: francesco--- via Users<users@ovirt.org> <mailto:users@ovirt.org>
Subject: [ovirt-users] Re: Console - VNC password is 12 characters long,
only 8 permitted
Francesco Lorenzini<france...@shellrent.com>
<mailto:france...@shellrent.com> writes:
Hi Milan,
thank you for your answer.
So there is no other way/workaround? We must wait the fix in the
engine and then upgrade? Maybe a downgrade of libvirt(?).
I can't think about any other workaround, without modifying sources, than
downgrading libvirt, until the fixed Engine is installed.
I was looking up some config file in the host under /etc/libvirt and
found the parameters vnc_password in qemu.conf file. I'm not sure that
setting a password per host in this config file works, casue it is
still passed via xml...
In theory, you could set the default password there and remove passwords
from the domain XMLs using Vdsm hooks. You would have to do it on all the
hosts or handle migrations accordingly. Downgrading libvirt looks much easier.
The default VNC password. Only 8 bytes are significant for # VNC
passwords. This parameter is only used if the per-domain # XML
config
does not already provide a password.
Francesco
Il 14/02/2022 12:41, Milan Zamazal ha scritto:
francesco--- via Users<users@ovirt.org> <mailto:users@ovirt.org>
writes:
Hi all,
I'm using websockify + noVNC for expose the vm console via
browser getting the graphicsconsoles ticket via API. Everything works fine for
every other host that I have (more than 200), the console works either via
oVirt engine and via browser) but just for a single host (CentOS Stream release
8, oVirt 4.4.9) the console works only via engine but when I try the connection
via browser I get the following error (vdsm log of the host):
ERROR FINISH updateDevice error=unsupported configuration:
VNC password is 12 characters long, only 8 permitted
Traceback (most recent call last):
File
"/usr/lib/python3.6/site-packages/vdsm/common/api.py", line 124, in method
ret = func(*args, **kwargs)
File "/usr/lib/python3.6/site-packages/vdsm/API.py", line
372, in updateDevice
return self.vm.updateDevice(params)
File "/usr/lib/python3.6/site-packages/vdsm/virt/vm.py",
line 3389, in updateDevice
return self._updateGraphicsDevice(params)
File "/usr/lib/python3.6/site-packages/vdsm/virt/vm.py",
line 3365, in _updateGraphicsDevice
params['params']
File "/usr/lib/python3.6/site-packages/vdsm/virt/vm.py",
line 5169, in _setTicketForGraphicDev
self._dom.updateDeviceFlags(xmlutils.tostring(graphics),
0)
File
"/usr/lib/python3.6/site-packages/vdsm/virt/virdomain.py", line 101, in f
ret = attr(*args, **kwargs)
File
"/usr/lib/python3.6/site-packages/vdsm/common/libvirtconnection.py", line 131,
in wrapper
ret = f(*args, **kwargs)
File
"/usr/lib/python3.6/site-packages/vdsm/common/function.py", line 94, in wrapper
return func(inst, *args, **kwargs)
File "/usr/lib64/python3.6/site-packages/libvirt.py", line
3244, in updateDeviceFlags
raise libvirtError('virDomainUpdateDeviceFlags() failed')
libvirt.libvirtError: unsupported configuration: VNC
password is
12 characters long, only 8 permitted
The error is pretty much self explanatory but, I can't manage to
figure out why only on this server
Hi,
this happens with libvirt 8.0.
and I wonder if I can set the length of the generated vnc
password
somewhere.
I don't think so, it must be fixed in Engine. See
https://github.com/oVirt/ovirt-engine/commit/a1e7e39348550b575f1f01b7
01105f9e1066b09f
for more details.
Regards,
Milan
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