Colibri iMX6ULL Reference Multimedia Image 5.7.2 doesn't work SSH connection

Hi everyone.

I’m trying to connect to board via SSH, but I got this message:

Unable to negotiate with port 22: no matching host key type found. Their offer: ssh-rsa

Thanks for any help!

System and Hardware:

  • TDX Wayland with XWayland 5.7.2+build.21 (dunfell) colibri-imx6ull-06823042 ttymxc0
  • Linux colibri-imx6ull-06823042 5.4.193-5.7.2+git.b60d3160fd04 #1 SMP Fri Dec 23 15:47:24 UTC 2022 armv7l armv7l armv7l GNU/Linux
  • Colibri iMX6ULL 512MB IT V1.1A
  • Board Aster V1.1B


Your ssh client has the ssh-rsa algorithm disabled by default, but the ssh server of the multimedia image supports only ssh-rsa (without reconfiguration). By using the HostKeyAlgorithm option of the ssh client you can enable or disable specific algorithms.

Try the following to enable ssh-rsa explicitly for the session (with root user):

ssh -oHostKeyAlgorithms=+ssh-rsa root@ 


Hi @lzaugg_parametric.

It’s worked!

Thanks for your help.