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Re: [Xen-API] Bug#674161: xcp-xapi: 'the device disappeared from xenstore' message during vbd-plug (vm-start)

On 23.05.2012 23:24, George Shuklin wrote:
On 23.05.2012 22:44, Dave Scott wrote:
xenstore-write /local/domain/0/vm hello

Yes, it plugged successfully (at least no error messages).

I saw that code in device.ml (where exception was raised), it seems be checking that path in xenstore:

                (* Sanity check: ensure the backend domain exists *)
                let _ =
let (_: string) = t.Xst.read (sprintf "/local/domain/%d/vm" device.backend.domid) in
                        with Xenbus.Xb.Noent ->
                                raise (Device_backend_vanished device) in

But even I was successfull, I unable to perform any IO in guest domain (I've get into initrd but I see no /dev/xvd* devices and no messages in dmesg related to new device).

I was wrong about this. Workaround 'xenstore-write /local/domain/0/vm something' works and new device is available in guest domain. There is a separate problem with networking I'll report separately.

Now but description is looking like this:

xcp-xapi package does not write dom0 uuid in xenstore upon startup. This prevents normal device initialization.

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