Attaching USB storage via XOA
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I have 2x external USB3 drives I'd prefer passed thru to a specific VM.
With XCP-ng Center it's quite simple once one is aware of the navigational routes. That being
- "General > Properties > USB > Attach" once the device has been passed thru, and
- "Storage > Attach Disk" if not.
However, it seems undoable via XOA...
i.e. How would one go about to accomplish the following in XOA:
- enable passthru for USB device
- assign USB device to VM
or
attach USB storage to VM (without enabling passthru)
In addition, I also found that the USB devices list and can be attached in XCP-ng Center, yet would not list in XOA ("VM > Disks").
If they are passed thru and attached to a VM (via XCP-ng center), they then do not reflect within the VM...
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It's because there's not such demands on that so far. But contributions are very welcome
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@olivierlambert I wouldn't know where to start
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You can already write a spec, and even also use our "inspector" to see exactly what commands are done by XCP-ng Center, so we just have to know which one to use
https://github.com/vatesfr/xapi-inspector
Actually, it's a non-negligible part of the work (and also test the branch after we do it).Before investing time doing that in the UI, we'll first implement it via
xo-cli.About the proxy,
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@olivierlambert
Is there somewhere to create a request for this feature? I understand it's definitely not typical but situations that require a VM/Instance to have a USB security key, external USB devices, etc are still out there and it would certainly be that niche case that would help give XCP-NG/Xen Orchestra the added edge in this capability.Thankfully this is possible through XCP-NG Center but I also don't know how long this will be a viable product in that it doesn't seem to have much support behind it and I have a particular situation that requires a VM to have a usb key for a software license key and at first had to eliminate this as a possibility to even use until I stumbled upon this.
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Same message, if you tell us which commands are used exactly and how do you imagine it, that might help to get a faster integration
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@olivierlambert
I have no idea what commands are actually being used, other than the steps inside XCP-Center that I do on the host and then inside the instance itself. I don't mind needing to use XCP-NG Center for this one specific task or setting, I'm just concerned that won't always be available to use as the years go on as opposed to Xen Orchestra. -
@olivierlambert
If there's a way to capture the commands being sent, I would be happy to undo the USB pass-through and then go through it again under Center? I just started XCP-NG and XOA in the past few months so I'm definitely new. -
That's exactly what I wrote originally. You need to setup https://github.com/vatesfr/xapi-inspector and connect your XCP-ng Center to it. This will intercept all calls
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@olivierlambert I actually have this need too, but it's not for USB storage. I'm running HomeAssistant on a VM, and I'd like to passthrough my Zigbee and Zwave USB devices.
Here is the xenserver doc on the topic: https://support.citrix.com/article/CTX235042
I think it actually includes the cli commands.
Hopefully that's helpful!
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We need the XAPI commands
Again, if you want this to be done at some point, we need more spec (because it means less time to actually develop) -
@olivierlambert unfortunately, I can't get the xe pusb-list command to return my USB devices, even though I see them with dmesg.
So, I may have bigger problems here...
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@rlyons20 soooo... xe pusb-list only exposes STORAGE devices. I verified by plugging in a USB thumb drive, and that shows up.
So, my use case of running HomeAssistant as a VM with Zigbee/Zwave USB devices is probably dead in the water.
That's disappointing...
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You might modify the filter to get your dongle detected
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I wrote a script to set up USB device passthrough for a specific device by name to a specific VM by name in the same basic way the XCP-ng Centre UI does it when you follow the steps described in the original post. Here's the script: https://gist.github.com/gpoole/c89807e9de9cb5c87bbcc2da27e0c3e4
Are those the commands you're looking for @olivierlambert?
Either way hopefully useful to anyone who wants to do this without using XCP-ng Centre. I've found it needs to be done every boot, so the script is intended to be something I can quickly SSH in and run. I'm sure it could be automated properly but works for me.
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Thanks for the commands. I just find it weird you need to do it at each boot, I don't remember having to do it here
