Unable to ssh to RPi3 after initial configuration of Ubuntu Core

Gregory Lutostanski gregory.lutostanski at canonical.com
Fri Feb 3 18:08:32 UTC 2017


Looks like somehow your editor broke up the lines with spaces (at 80
characters), so when you copied it into the textfield on
https://launchpad.net/~<your-username>/+editsshkeys it was broken at 80
characters.

I would suggest removing the offending key and adding it again. To make
sure it doesn't happen again, (on windows) I would open it with notepad and
turn off word wrap and copy and paste to there again.

If you have any issues, let me know what your launchpad id is. That way I
can pull your public key and see if anything else makes sense.

Hopefully that will sort you out!


On Fri, Feb 3, 2017 at 10:37 AM, George Gundry <george.gundry at 4dml.com>
wrote:

> 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 L
>
>
>
> 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@
> 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>
> 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 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>
> 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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> > Snapcraft at lists.snapcraft.io
> > Modify settings or unsubscribe at:
> > https://lists.ubuntu.com/mailman/listinfo/snapcraft
> >
>
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