===== Reset password RedHat image qcow2 from Debian =====
<code>
sudo apt-get install libguestfs-tools --no-install-recommends
virt-customize -a rhel-server-7.9-x86_64-kvm.qcow2 --root-password password:manager --uninstall cloud-init
</code>

==== References ====
  * https://access.redhat.com/solutions/641193