Unable to unblock a vm for reversion of snapshot

dsiminiuk

I am using a pre-built xo VM running on my pool master created from a script by Ronivay and it has been working well. I had the VM set to prevent accidental deletion and shutdown and with autostart. No problem.

I took a snapshot of it and upgraded the kernel to hwe (6.x) and upon reboot it never came back up on the network.

I tried to revert to the snapshot via xe...

xe snapshot-revert snapshot-uuid=1a91d725-65b0-7bb7-f70f-0be5903e8d44
You attempted an operation that was explicitly blocked (see the blocked_operations field of the given object).
ref: e8d5def9-e079-d7a6-e106-fe8d96f55cac (xo-ce)
code: false

And so I attempted to set all the blocked-operations vm-parameters to false, and I got all of them except one.

xe vm-param-list uuid=e8d5def9-e079-d7a6-e106-fe8d96f55cac | fgrep blocked

blocked-operations (MRW): destroy: false; pause: false; clean_reboot: false; suspend: false; hard_reboot: false; hard_shutdown: false; clean_shutdown: false; (unknown operation): true

I can't revert to the snapshot and I am still unable to set the "(unknown operation)" parameter to false.

I have a backup of the XO-Config so i could start over but it would be nice to not have to do that.

Any pointers would be most welcome.

Thanks
Danny

dsiminiuk

I figured out another way around it. I imported a new xo VM with the same script and connected it to my pool master just long enough to revert to the snapshot of the XO I wanted to keep.
I was able to login and delete the temporary XO VM.
I would still like to understand what the
blocked-operations (MRW): (unknown operation): true;
means.

Anyway, not urgent.
Thanks
Danny

dsiminiuk

Additional observations...

When a VM is set to prevent accidental deletion (only)...

blocked-operations (MRW): destroy: true

When set to prevent accidental shutdown (only)...

blocked-operations (MRW): clean_shutdown: true; (unknown operation): true; pause: true; hard_reboot: true; suspend: true; hard_shutdown: true; clean_reboot: true

And of course with both options enabled, it is the aggregation of both sets.

blocked-operations (MRW): destroy: true; clean_shutdown: true; (unknown operation): true; pause: true; hard_reboot: true; suspend: true; hard_shutdown: true; clean_reboot: true

Danny

olivierlambert

The unknown operation thing is weird. Pinging @MathieuRA if we can reproduce.

Danp

@olivierlambert See prior discussion here

olivierlambert

I'm not sure, are we still affected? Should it be fixed in XO?

dsiminiuk

@Danp I tried some of the xe commands listed in that post like xe vm-param-clear and xe vm-param-remove and wasn't successful.