waiting for SSH to become available with packer too long - packer

Question

Anyone have already this issue with packer build ?
Waiting for SSH to become available...
[INFO] Attempting SSH connection...
reconnecting to TCP connection for SSH
handshaking with SSH
handshake error: ssh: handshake failed: read tcp 127.0.0.1:49663->127.0.0.1:3278: wsarecv: Une connexion existante a dû être fermée par l’hôte distant.
[DEBUG] SSH handshake err: ssh: handshake failed: read tcp 127.0.0.1:49663->127.0.0.1:3278: wsarecv: Une connexion existante a dû être fermée par l’hôte distant.
My packer build run correctly but the step to connect with ssh is very long (10min).
Have you a idea for resolve this ?
PS : the "space" character in log is not my fault, this is just the result of -debug packer build. Perhaps open another stackoverflow issue for resolve this.

Answer 1

I have a similar setup (Ubuntu, Windows 7, virtualbox-iso). My scripts include a file below that's called in the provisioners block. Lacking these may be a cause of the slowness
#!/bin/sh -x
echo "UseDNS no" >> /etc/ssh/sshd_config;
echo "GSSAPIAuthentication no" >> /etc/ssh/sshd_config;
It's also possible that the 10 minute wait is just other stuff happening in the background that you can't see. If you can post a link to your scripts and/or tell me how long the entire build process takes that might provide additional context