Unable to ssh to RPi3 after initial configuration of Ubuntu Core

Fri Feb 3 16:37:37 UTC 2017

Hi Gregory, Luca & Mattias for your generous help.

I was able to look at user-data/*/.ssh/authorized_keys (I mounted the SD card in Windows using ExtFS from Paragon Software)

The key does not look right – a space has been inserted after every 80 characters ??? – see partial screenshot below. These space characters are not present when I open the source id_rsa.pub in Sublime …

Unfortunately, I can only mount the drive as read-only, so can’t make the changes, save and try again :(

Clearly, you guys HAVE been able to work, and I have double checked username and all other details – it’s driving me mad !

Regards,

George

From: snapcraft-bounces at lists.snapcraft.io [mailto:snapcraft-bounces at lists.snapcraft.io] On Behalf Of Gregory Lutostanski
Sent: 03 February 2017 15:40
To: Snapcraft <snapcraft at lists.snapcraft.io>
Subject: Re: Unable to ssh to RPi3 after initial configuration of Ubuntu Core

And since it is a rpi... you can just pop out the sdcard, and put in a different computer and see which ssh-key is in the second-partition at user-data/*/.ssh/authorized_keys if you are really curious (although since you are on windows, reading that partition which is ext4 might be more difficult).

On Fri, Feb 3, 2017 at 9:25 AM, Luca Dionisi <luca.dionisi at gmail.com <mailto:luca.dionisi at gmail.com> > wrote:

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 luca.dionisi at gmail.com <mailto:luca.dionisi at gmail.com>  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 <george.gundry at 4dml.com <mailto:george.gundry at 4dml.com> > 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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