This page mainly introduces automatic login under Ubuntu.
Check Settings
→Users
→Automatic Login
.
For tty1-tty6:
sudo cp /lib/systemd/system/getty@.service /lib/systemd/system/getty@.service.backup sudo sed -i "s/ExecStart=.*/ExecStart=-\/sbin\/agetty --noclear --autologin khadas \%I \$TERM/g" /lib/systemd/system/getty@.service
For ttyS0:
sudo cp /lib/systemd/system/serial-getty@.service /lib/systemd/system/serial-getty@.service.backup sudo sed -i "s/ExecStart=.*/ExecStart=-\/sbin\/agetty --autologin khadas --keep-baud 921600,115200,38400,9600 \%I \$TERM/g" /lib/systemd/system/serial-getty@.service
Reboot to take effect.
If you want to recovery the login prompt, please follow the steps below:
sudo mv /lib/systemd/system/getty@.service.backup /lib/systemd/system/getty@.service sudo mv /lib/systemd/system/serial-getty@.service.backup /lib/systemd/system/serial-getty@.service