How to disable automatic login on latest Debian OPI 5

Natasha78

On the most recent Debian OPI 5, you may deactivate automatic login by editing the LightDM configuration file. Open a terminal window and type sudo nano /etc/lightdm/lightdm.conf. Remove the '#' from the line #autologin-user= and save the file. This will turn off automatic login.
"To disable automatic login on Debian OPI 5, edit the LightDM configuration file (/etc/lightdm/lightdm.conf) and remove the '#' from the line 'autologin-user='." This increases security by requiring a manual login.

rohoog

Instead of editing the /lib/systemd/system/serial-getty@.service.d/override.conf file, it would be better to create a new file /etc/systemd/system/serial-getty@.service.d/override.conf, possibly empty to completely revert the customization in the override.conf file in /lib/systemd...
This prevents updates using apt from reverting your customization.

So just do

1. mkdir -p /etc/systemd/system/serial-getty@.service.d

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and

1. touch /etc/systemd/system/serial-getty@.service.d/override.conf

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(and also for the 'normal' getty, if you wish) as root.