Just a couple of hints.

1. Double check username.
It might be different than that of the email you use to signon at Ubuntu.
E.g. my mail is [email protected] while user on my RPi is luca-dionisi.

2. Try flag "-v" with ssh. Check the id_rsa* files that it tries with.




On Fri, Feb 3, 2017 at 4:08 PM, George Gundry <[email protected]> wrote:
> I followed the instructions here:
> https://developer.ubuntu.com/core/get-started/raspberry-pi-2-3
>
> I have created a Ubuntu SSO account
>
> uploaded my SSH public key,
>
> used Win32DiskImager to burn the Ubuntu Core Pi3 image
> ubuntu-core-16-pi3.img to an SD card,
>
> booted the Pi3 connected to Ethernet,
>
> correctly get the “Press Enter to Configure” message,
>
> pass Network Config,
>
> entered my SSO account,
>
> got the ”Contacting Store” message,
>
> got the success reply back from the store saying the key had been stored on
> the Pi and I can use ssh <username>@<ip address>
>
> Try to connect to pi over ssh as instructed, private key auth fails …
>
> Things I have tried:
>
> Different terminal emulators – putty; Remote Terminal; TokenShell/MD;
> command line ssh from another Pi; forcing use of specific private key with
> -I option
>
> Different SSH key pairs – known good pair that we use elsewhere; new keygen
> generated keys with passphrase; new keygen generated keys without passphrase
>
> Different Pi’s – Work and home
>
> Different Ubuntu SSO accounts – created a new account from scratch, same
> result.
>
> In desperation, I tried to load 16.04 LTS, and this was successful so I am
> confident the kit (Pi, SD card, network connection) is good.
>
> Nothing I have tried makes any difference, the private key is never accepted
> by the Ubuntu Core device.
>
> I am keen to investigate migrating our IoT product from Raspbian Lite to
> Core, but can’t seem to get beyond step one !
>
>
>
>
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