severity 930178 serious thanks This also happens when installing salt-master and salt-minion at the same time:
apt-get install salt-master salt-minion [...] Setting up salt-master (2018.3.4+dfsg1-6) ... adduser: Warning: The home directory /var/lib/salt' does not belong to the user you are currently creating. Job for salt-master.service failed because the control process exited with error code. See "systemctl status salt-master.service" and "journalctl -xe" for details. invoke-rc.d: initscript salt-master, action "start" failed. Discovered this today while upgrading a system from stretch to buster. I consider this to be a serious bug and I also believe we should try to fix it in a point release of buster as well. Thanks.