Hi all,
I recently tried to upgrade an oVirt node from 4.5.1 to 4.5.3. The upgrade failed (I have no idea idea why... how can I access the installation logs?). The node is still working fine running the old 4.5.1 release, but now the oVirt web console says that it is up to date and it does not let me retry the upgrade. However, I am still on version 4.5.1, as witnessed by the result of "nodectl info":

----
bootloader:
  default: ovirt-node-ng-4.5.1-0.20220623.0 (4.18.0-394.el8.x86_64)
  entries:
    ovirt-node-ng-4.5.1-0.20220623.0 (4.18.0-394.el8.x86_64):
      index: 0
      kernel: /boot//ovirt-node-ng-4.5.1-0.20220623.0+1/vmlinuz-4.18.0-394.el8.x86_64
      args: crashkernel=auto resume=/dev/mapper/onn_ovirt--clai1-swap rd.lvm.lv=onn_ovirt-clai1/ovirt-node-ng-4.5.1-0.20220623.0+1 rd.lvm.lv=onn_ovirt-clai1/swap rhgb quiet boot=UUID=9d44cf2a-38bb-477d-b542-4bfc30463d1f rootflags=discard img.bootid=ovirt-node-ng-4.5.1-0.20220623.0+1 intel_iommu=on modprobe.blacklist=nouveau transparent_hugepage=never hugepagesz=1G hugepages=256 default_hugepagesz=1G
      root: /dev/onn_ovirt-clai1/ovirt-node-ng-4.5.1-0.20220623.0+1
      initrd: /boot//ovirt-node-ng-4.5.1-0.20220623.0+1/initramfs-4.18.0-394.el8.x86_64.img
      title: ovirt-node-ng-4.5.1-0.20220623.0 (4.18.0-394.el8.x86_64)
      blsid: ovirt-node-ng-4.5.1-0.20220623.0+1-4.18.0-394.el8.x86_64
layers:
  ovirt-node-ng-4.5.1-0.20220623.0:
    ovirt-node-ng-4.5.1-0.20220623.0+1
current_layer: ovirt-node-ng-4.5.1-0.20220623.0+1
------

Comparing the situation with other hosts in the same data center, it seems that the problem is that the package ovirt-node-ng-image-update-placeholder is not installed anymore, hence "dnf upgrade" has nothing to do. My idea was to manually download and install the 4.5.1 version of ovirt-node-ng-image-update-placeholder and attempt installation again.

Is it a correct way to proceed ?

Thanks for any help.

--gianluca amato
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