Run software on the tty1 console instead of getty login on Ubuntu 14.04 and 16.04 |
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Published: 10-04-2017 | Author: Remy van Elst | Text only version of this article ❗ This post is over five years old. It may no longer be up to date. Opinions may have changed. Recently I wanted to change the default login prompt on the tty1 console on an OpenStack instance to automatically run htop. Instead of logging in via the console, I wanted it to start up htop right away and nothing else. Ubuntu 14.04 uses init and Ubuntu 16.04 uses systemd. Both ways are shown in this tutorial. I'm developing an open source monitoring app called Leaf Node Monitoring, for windows, linux & android. Go check it out! Consider sponsoring me on Github. It means the world to me if you show your appreciation and you'll help pay the server costs. You can also sponsor me by getting a Digital Ocean VPS. With this referral link you'll get $100 credit for 60 days.
Here's what the default login prompt on the console looks: And here is the result, htop running without ever logging in: Do note that you loose the ability to login via the regular console this way. ssh is your only means of access. Do note that the software is run as root. If you for example want to run vim you also can escape to a shell. htop as far as I know doesn't allow command execution. On Ubuntu 14.04, edit the following file: vim /etc/init/tty1.confReplace: exec /sbin/getty -8 38400 tty1with: exec /usr/bin/htop /dev/tty1 2>&1Use full paths and make sure output and input are redirected (`&1`). On Ubuntu 16.04 stuff changes due to systemd. No longer can you use output redirection, this is now all handled via systemd. Create an override folder for the getty@tty1 service first: mkdir /etc/systemd/system/[email protected]/Edit the override file: vim /etc/systemd/system/[email protected]/override.confPlace the following: [Service] ExecStart= ExecStart=-/usr/bin/htop StandardInput=tty StandardOutput=ttyNow reload the unit files and restart the service. htop should appear on your prompt: systemctl daemon-reload; systemctl restart [email protected]Or just do a reboot. As a bonus, you can also install hollywood: apt-get install tmux hollywood # fill your console with Hollywood melodrama technobabbleand set that up to autorun on the console. Use the following in the systemd file otherwise byobu will complain about wrong permissions on your homefolder: /usr/bin/sudo -H /usr/bin/hollywoodMuch fun: Home | About | All pages | Cluster Status | Generated by ingsoc. |
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