Can't SSH to beaglebone black (port 22: Connection refused)

Yang Lei

unread,

Sep 9, 2016, 2:05:24 PM9/9/16

to BeagleBoard

Hello everyone,

I'm trying to create beaglebone black sd-card image based on RobertCNelson's eewiki website. I followed the steps based on the newest version of the eewiki website. But after I boot BBB, I can't SSH to it. It keeps showing the following message:

ssh: connect to host 192.168.2.8 port 22: Connection refused

The image I built last month works well and I can SSH to it. I don't know what is changed on eewiki's website, but now, it seems SSH doesn't work. Even I follow the old version of eewiki's website, the SSH doesn't work anymore.

Does anyone know how to fix this issue? Thanks!

Yang

Robert Nelson

unread,

Sep 9, 2016, 4:06:14 PM9/9/16

to Yang Lei, Beagle Board

Here's the startup script that should be called:

https://github.com/RobertCNelson/boot-scripts/blob/master/boot/generic-startup.sh#L12-L33

Regards,

--
Robert Nelson
https://rcn-ee.com/

Yang Lei

unread,

Sep 9, 2016, 4:06:14 PM9/9/16

to Robert Nelson, Beagle Board

Thanks! The thing is, if I can't ssh to BBB, I can't do sudo dpkg-reconfigure openssh-server. Is there some other way to fix this? By modifying the sd-card image?

On Fri, Sep 9, 2016 at 3:41 PM, Robert Nelson <robert...@gmail.com> wrote:

On Fri, Sep 9, 2016 at 2:40 PM, Yang Lei <y34...@gmail.com> wrote:
> Thanks! But should I do this on a host or on BBB?

On the BBB.

Yang Lei

unread,

Sep 9, 2016, 4:06:14 PM9/9/16

to Robert Nelson, Beagle Board

Yeah, it's quite strange. I built so many sd-card image with different version of u-boot, kernel and rootfs. Even with different routers. However, all of them shows connection refused message.Thanks anyway,

On Fri, Sep 9, 2016 at 3:53 PM, Robert Nelson <robert...@gmail.com> wrote:

On Fri, Sep 9, 2016 at 2:43 PM, Yang Lei <y34...@gmail.com> wrote:
> Thanks! The thing is, if I can't ssh to BBB, I can't do sudo
> dpkg-reconfigure openssh-server. Is there some other way to fix this? By
> modifying the sd-card image?

Plug in a usb-serial adapter..

the ssh key's should have been auto-generated on first bootup...

Robert Nelson

unread,

Sep 9, 2016, 4:06:14 PM9/9/16

to Yang Lei, Beagle Board

On Fri, Sep 9, 2016 at 2:43 PM, Yang Lei <y34...@gmail.com> wrote:
> Thanks! The thing is, if I can't ssh to BBB, I can't do sudo
> dpkg-reconfigure openssh-server. Is there some other way to fix this? By
> modifying the sd-card image?

Plug in a usb-serial adapter..

the ssh key's should have been auto-generated on first bootup...

Robert Nelson

unread,

Sep 9, 2016, 4:06:37 PM9/9/16

to Yang Lei, Beagle Board

On Fri, Sep 9, 2016 at 2:40 PM, Yang Lei <y34...@gmail.com> wrote:
> Thanks! But should I do this on a host or on BBB?

On the BBB.

Robert Nelson

unread,

Sep 9, 2016, 4:06:37 PM9/9/16

to Beagle Board, y34...@gmail.com

It's possible the ssh key's haven't been generated:

sudo dpkg-reconfigure openssh-server

Yang Lei

unread,

Sep 9, 2016, 4:06:37 PM9/9/16

to Robert Nelson, Beagle Board

Thanks! But should I do this on a host or on BBB?

Best

Yang

Reply all

Reply to author

Forward