One thing you can do is uninstall the engine, do a cleanup, and then re-install the engine.
- although as I understand it, the hostname in NMTUI is a placeholder / label, I make a habit of setting the hostname prior to running engine-setup.
- always make sure the hostname of the system is the one you set in engine-setup.  it will complain or fail if you don't.
- you have to have either DNS or an entry in /etc/hosts for the FQDN to resolve, otherwise engine-setup will complain / fail.
- you must also have DNS or an entry in your workstation's HOSTS file, the system you're using to load the Engine / Manager in a web browser

During that time you can set your password again.  Also here's the notes I have on resetting it without setting an expiration date:
(make sure your admin account is not LOCKED out due to too many failed logon attempts)
ovirt-aaa-jdbc-tool user show admin
ovirt-aaa-jdbc-tool user unlock admin
ovirt-aaa-jdbc-tool user password-reset admin

I have been setting up this version (4.5.5 on Rocky 8.9) for a migration project, and keep running into repo problems (because of "mirrorlist" changing to "vault" in the CentOS-* repos earlier this year) and trying to nail down the Open-VSwitch, repos I have seem to be missing packages)

Hope this helps!

-Tim
From: himalaje2022@gmail.com <himalaje2022@gmail.com>
Sent: Thursday, October 24, 2024 7:02 AM
To: users@ovirt.org <users@ovirt.org>
Subject: [ovirt-users] Re: Latest 4.5.5 centos node install username password not working.
 
I also can't login after clean install...

I did change localhost into some computer name durring installation.
I also can't install almost anything. There is connection with internet but no way to get nano or mc.
In Debian it was a lot easier.

I did also check documentation and there I didn't found anything about password or username.
Only user in system is root.
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