Ubuntu: ERROR cannot deliver device serial request: unexpected status 400



Question:

I've created kernel and gadget snaps for my new board.
I successfully deployed the image created by ubuntu-image into the emmc of my board. I can complete the device configuration (console-conf terminates with the message "Congratulations! This device is now registered to" ...).

Logging into my device and typing:

snap changes  

I obtain the following output:

ID   Status  Spawn                 Ready                 Summary  1    Done    2017-01-30T09:02:08Z  2017-01-30T09:04:08Z  Initialize system state  2    Doing   2017-01-30T09:02:18Z  -                     Initialize device  The system change with ID 2 ("Initialize device") seems to be in progress.  

More in detail with the command:

snap change 2  

I obtain:

Status  Spawn                 Ready                 Summary  Done    2017-01-30T09:02:18Z  2017-01-30T09:04:08Z  Generate device key  Doing   2017-01-30T09:02:18Z  -                     Request device serial  ......................................................................  Request device serial  2017-01-30T09:24:06Z ERROR cannot deliver device serial request: unexpected status 400  2017-01-30T09:25:09Z ERROR cannot deliver device serial request: unexpected status 400  2017-01-30T09:26:12Z ERROR cannot deliver device serial request: unexpected status 400  2017-01-30T09:27:15Z ERROR cannot deliver device serial request: unexpected status 400  [...]  

Am I missing something in my gadget snap implementation? Is only an ubuntu server side problem?


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