Hi all!

I've spent more than 2 days googling how to upgrade an ovirt node. Please, I need some serious help on this. The only thing I've found is that u can go to Hosts tab in the engine GUI > select the blade an there is an option for Upgrade between Reinstall and Configure Local Storage. Well, that option is grayed-out. There is no documentation available for it... I've dried the google sea and even a node-level command give this error:

[root@blade1c2 admin]# ovirt-node-upgrade --reboot=1 --iso=http://resources.ovirt.org/pub/ovirt-3.6/iso/ovirt-node-ng-installer/ovirt-node-ng-installer-ovirt-3.6-2016052403.iso

ovirt-node-upgrade.UpgradeTool: INFO Temporary Directory is: /data/tmpgv4fHj

ovirt-node-upgrade.LockFile: INFO Acquiring Lock

Traceback (most recent call last):

File "/sbin/ovirt-node-upgrade", line 382, in <module>

u.run()

File "/sbin/ovirt-node-upgrade", line 360, in run

self._options.iso_file)

RuntimeError: http://resources.ovirt.org/pub/ovirt-3.6/iso/ovirt-node-ng-installer/ovirt-node-ng-installe

Please, need somebody to help me. Why upgrading a node it's so dificult in ovirt?