Question

8

Login on local terminal without password

rated 0 times [ 8] [ 0] / answers: 1 / hits: 11239 / 3 Years ago, sun, may 23, 2021, 1:27:53

I have a virtual guest of Ubuntu on a KVM Machine, I've setup the machine so I can type virsh console and be dropped into a console.

I realise the security considerations here, but is it possible to set the guest up so that if a user connects via console they are automatically root without having to type in any password. However this is only for serial console and not for SSH or remote access.

This isn't really a KVM question but just a system setup, the console has been setup as a device on /dev/ttyS0.

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answered 3 Years ago cisccla · Accepted Answer

edit /etc/init/tty1.conf:

sudo nano -w /etc/init/tty1.conf

replace the content with the following:

# tty1 - getty

#

# This service maintains a getty on tty1 from the point the system is

# started until it is shut down again.



start on stopped rc RUNLEVEL=[2345] and (

            not-container or

            container CONTAINER=lxc or

            container CONTAINER=lxc-libvirt)



stop on runlevel [!2345]



respawn

exec /sbin/getty --autologin root -8 38400 tty1

the important change is the last line includes --autologin root as an argument.

Once the change is made it can be activated with a reboot or by running sudo stop tty1 && sudo start tty1