Desktop
configiure file
configiure file is 50-greeter-wrapper.conf
khadas@Khadas:~$ sudo vim /usr/share/lightdm/lightdm.conf.d/50-greeter-wrapper.conf
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Add auto login Configuration information
Add the following content to the file
[SeatDefaults] greeter-session=lightdm-gtk-greeter autologin-user=khadas
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note: If you modify it through ssh or serial port, it will take effect after you log in once.
Server
tty1-tty6
khadas@Khadas:~$ sudo sed -i "s/ExecStart=.*/ExecStart=-\/sbin\/agetty --noclear --autologin root \%I \$TERM/g" /lib/systemd/system/getty@.service
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ttyS0
khadas@Khadas:~$ sudo sed -i "s/ExecStart=.*/ExecStart=-\/sbin\/agetty --autologin root --keep-baud 115200,38400,9600 \%I \$TERM/g" /lib/systemd/system/serial-getty@.service
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