I have tried to use example json from packer website. I am using CentOS minimal ISO though. I never get a SSH connection and things just timeout. Is this known, how do I get around it? I am simply not able to proceed with packer at all. I really want to use this tool for a product we are building.
2018/08/25 09:46:53 packer: 2018/08/25 09:46:53 [INFO] Attempting SSH connection...
2018/08/25 09:46:53 packer: 2018/08/25 09:46:53 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:46:53 packer: 2018/08/25 09:46:53 [DEBUG] handshaking with SSH
2018/08/25 09:46:53 packer: 2018/08/25 09:46:53 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:46:53 packer: 2018/08/25 09:46:53 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:00 packer: 2018/08/25 09:47:00 [INFO] Attempting SSH connection...
2018/08/25 09:47:00 packer: 2018/08/25 09:47:00 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:47:00 packer: 2018/08/25 09:47:00 [DEBUG] handshaking with SSH
2018/08/25 09:47:00 packer: 2018/08/25 09:47:00 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:00 packer: 2018/08/25 09:47:00 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:07 packer: 2018/08/25 09:47:07 [INFO] Attempting SSH connection...
2018/08/25 09:47:07 packer: 2018/08/25 09:47:07 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:47:07 packer: 2018/08/25 09:47:07 [DEBUG] handshaking with SSH
2018/08/25 09:47:07 packer: 2018/08/25 09:47:07 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:07 packer: 2018/08/25 09:47:07 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:14 packer: 2018/08/25 09:47:14 [INFO] Attempting SSH connection...
2018/08/25 09:47:14 packer: 2018/08/25 09:47:14 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:47:14 packer: 2018/08/25 09:47:14 [DEBUG] handshaking with SSH
2018/08/25 09:47:14 packer: 2018/08/25 09:47:14 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:14 packer: 2018/08/25 09:47:14 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:21 packer: 2018/08/25 09:47:21 [INFO] Attempting SSH connection...
2018/08/25 09:47:21 packer: 2018/08/25 09:47:21 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:47:21 packer: 2018/08/25 09:47:21 [DEBUG] handshaking with SSH
2018/08/25 09:47:21 packer: 2018/08/25 09:47:21 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:21 packer: 2018/08/25 09:47:21 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:28 packer: 2018/08/25 09:47:28 [INFO] Attempting SSH connection...
2018/08/25 09:47:28 packer: 2018/08/25 09:47:28 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:47:28 packer: 2018/08/25 09:47:28 [DEBUG] handshaking with SSH
2018/08/25 09:47:28 packer: 2018/08/25 09:47:28 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:28 packer: 2018/08/25 09:47:28 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:35 packer: 2018/08/25 09:47:35 [INFO] Attempting SSH connection...
2018/08/25 09:47:35 packer: 2018/08/25 09:47:35 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:47:35 packer: 2018/08/25 09:47:35 [DEBUG] handshaking with SSH
2018/08/25 09:47:35 packer: 2018/08/25 09:47:35 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:35 packer: 2018/08/25 09:47:35 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:42 packer: 2018/08/25 09:47:42 [INFO] Attempting SSH connection...
2018/08/25 09:47:42 packer: 2018/08/25 09:47:42 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:47:42 packer: 2018/08/25 09:47:42 [DEBUG] handshaking with SSH
2018/08/25 09:47:42 packer: 2018/08/25 09:47:42 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:42 packer: 2018/08/25 09:47:42 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:49 packer: 2018/08/25 09:47:49 [INFO] Attempting SSH connection...
2018/08/25 09:47:49 packer: 2018/08/25 09:47:49 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:47:49 packer: 2018/08/25 09:47:49 [DEBUG] handshaking with SSH
2018/08/25 09:47:49 packer: 2018/08/25 09:47:49 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:49 packer: 2018/08/25 09:47:49 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:56 packer: 2018/08/25 09:47:56 [INFO] Attempting SSH connection...
2018/08/25 09:47:56 packer: 2018/08/25 09:47:56 [DEBUG] reconnecting to TCP connection for SSH
2018/08/25 09:47:56 packer: 2018/08/25 09:47:56 [DEBUG] handshaking with SSH
2018/08/25 09:47:56 packer: 2018/08/25 09:47:56 [DEBUG] SSH handshake err: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:56 packer: 2018/08/25 09:47:56 [DEBUG] Detected authentication error. Increasing handshake attempts.
2018/08/25 09:47:56 ui error: ==> qemu: Error waiting for SSH: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
==> qemu: Error waiting for SSH: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:56 ui error: ==> qemu: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
==> qemu: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain
2018/08/25 09:47:56 ui: ==> qemu: Step "StepConnect" failed
==> qemu: Step "StepConnect" failed
2018/08/25 09:47:56 ui: ask: ==> qemu: [c] Clean up and exit, [a] abort without cleanup, or [r] retry step (build may fail even if retry succeeds)?
==> qemu: [c] Clean up and exit, [a] abort without cleanup, or [r] retry step (build may fail even if retry succeeds)?