How can i login kernal , jovyan user have only user access

my error was by default jovyan user was create it can’t give permission to useradd command it failed /etc/password was getting

i was use this command for open exec terminal

kubectl exec -it hub-XXXXXXXXXXX -n jupyterhub – bash

if you’re running on kubernetes, it is unlikely useradd should ever be called. Is this the zero-to-jupyterhub helm chart? If so, please share your configuration, the exact error messages you are seeing, and possibly some surrounding logs to help understand what is going on.