Hi,i run 'guix system reconfigure config.scm --falback', and add new user: tron.
When i try to login such as tron does not allow login and slim restart. i check secure and slim.log log files, this message appears in slim.log:slim: pam_authentication(): User not known to the underlying authentication module
The solution to fix this issue was: changing the owner:group for the home user.
cd /home chown -Rf 30019:users tron and works.