Truenas Scales VM failed to start

[olivierlambert]

It means the PCI device you are trying to pass to this VM is already used, either by another VM, or by the Dom0 itself.

[jag5cof]

@olivierlambert what is the fix action and how

[olivierlambert]

I can't guess the device you are trying to passthrough and how/if it's used by another VM or the dom0.

The fix is to be sure no other VM is using this device (including the dom0). If you added a passthrough device, you know which one you added, and nobody else can guess it

[jag5cof]

@olivierlambert I know the other vm which are using the passthough. So do you know I can remove the passthough from the others vms

[AtaxyaNetwork]

@jag5cof I imagine it's something like:

• List the param of your VM with xe vm-param-list uuid=<uuid>
• Find the line like other-config:pci=0/0000:04:01.0
• Then you can remove with xe vm-param-remove other-config:pci=0/0000:04:01.0 uuid=<uuid>

[jag5cof]

@AtaxyaNetwork ok and thanks

[jag5cof]

@AtaxyaNetwork I'm gettin this error when I run this command

Required parameter not found: param-name
xe vm-param-remove other-config:pci=0/0000:03:00.0 uuid=vm#

I add the correct pci id and vm uuid

[AtaxyaNetwork]

@jag5cof Maybe xe vm-param-remove param-name=other-config param-key=pci=0/0000:03:00.0 uuid=<uuid> ?

[jag5cof]

@AtaxyaNetwork I got this error when I ran your cmd - Key pci=0/0000:03:00.0 is not in map

I aslo ran xl pci-assignable-list
0000:03:00.0

[AtaxyaNetwork]

@jag5cof I just discussed this with @olivierlambert, the right syntax is:
xe vm-param-remove param-name=other-config param-key=pci uuid=<VM UUID>

He will add the procedure to delete PCI passthrough in the docs

[olivierlambert]

I updated the doc, it's now available: https://docs.xcp-ng.org/compute/#detaching-a-pci-device

[jag5cof]

@AtaxyaNetwork I appreciate you working with me on this. It is a learn experience.

[jag5cof]

@olivierlambert I'm still getting this error - Key pci is not in map

[olivierlambert]

Check if you have the PCI parameter enabled on the VM first:

xe vm-param-list uuid=<VM UUID>

[jag5cof]

@olivierlambert What line am I'm looking for on the vm after the
cmd is run

[olivierlambert]

The other-config line Paste it here

[jag5cof]

@olivierlambert I'm not sure what you ar asking?

[olivierlambert]

Paste the output of xe vm-param-list uuid=<VM UUID> in here.

[jag5cof]

@olivierlambert Do you think it would be easier to re-install truenas and not applied passthough

[olivierlambert]

No. Just paste the result so we can see the content of the other-config field.