I have the same problem as describe in the SSH to a login to Ubuntu Core on Raspberry Pi requires password. I create a SSH key with Ubuntu MATE 16.04 installed on a VirtualBox VM The key was created with the https://help.ubuntu.com/community/SSH/OpenSSH/Keys webpage instructions. I transfert the public key on my SSO account. When I boot my Raspberry Pi 3, I do the installation process and I have provided my account information. To connect to the RPi3, I tried the following different methods.

  • My SSO usersname with the RSA key pathphrase.
  • My SSO email with the RSA key pathphrase.
  • My SSO email with SSO password.
  • My SSO username with SSO password.
  • Ubuntu / ubuntu.
  • My SSO username with no password. None of these methods allowed me to login. Thanks.
  • How exactly are you connecting to the Pi?
    – muru
    Jan 11 '17 at 13:35
  • I connect directly from the keyboard connected to the RPi. I also try with an SSH connection but the result is the same.
    – Foxrider83
    Jan 11 '17 at 13:39
  • 1
    The right combination is ssh -i <path-to-SSO-private-key> <SSO-username>@<device-ip> Jan 11 '17 at 13:52
  • 1
    Foxrider83 and that's why I asked how exactly you're connecting. @Manik do post an answer
    – muru
    Jan 11 '17 at 14:28

The right combination is ssh -i <path-to-SSO-private-key> <SSO-username>@<device-ip>

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