How to use systemctl in Ubuntu 14 04

Question

I try to perform the following command in Ubuntu 14 04   systemctl enable --now docker-cleanup-dangling-images timer   I also tried it with sudo  I tried to replace systemctl with service and systemd but nothing works  sudo  systemd  command not found systemd  command not found sudo  service  command not foud   How can I execute this command in Ubuntu 14 04 or is there another way to execute the same command

User · Answer

So you want to remove dangling images  Am I correct    systemctl enable docker-container-cleanup timer systemctl start docker-container-cleanup timer systemctl enable docker-image-cleanup timer  systemctl start docker-image-cleanup timer   https   github com larsks docker-tools tree master docker-maintenance-units

User · Answer

I just encountered this problem myself and found that Ubuntu 14 04 uses Upstart instead of Systemd  so systemctl commands will not work  This changed in 15 04  so one way around this would be to update your ubuntu install   If this is not an option for you  it s not for me right now   you need to find the Upstart command that does what you need to do   For enable  the generic looks to be the following   update-rc d  lt service gt  enable  Link to Ubuntu documentation  https   wiki ubuntu com SystemdForUpstartUsers

User · Answer

I ran across this while on a hunt for answers myself after attempting to follow a guide using pm2   The goal is to automatically start a node js application on a server  Some guides call out using pm2 startup systemd  which is the path that leads to the question of using systemctl on Ubuntu 14 04   Instead  use pm2 startup ubuntu   Source  https   www digitalocean com community tutorials how-to-set-up-a-node-js-application-for-production-on-ubuntu-14-04

User · Answer

Ubuntu 14 and lower does not have  systemctl  Source  https   docs docker com install linux linux-postinstall  configure-docker-to-start-on-boot  Configure Docker to start on boot      Most current Linux distributions  RHEL  CentOS  Fedora  Ubuntu 16 04   and higher  use systemd to manage which services start when the system   boots  Ubuntu 14 10 and below use upstart    1  systemd  Ubuntu 16 and above      sudo systemctl enable docker   To disable this behavior  use disable instead     sudo systemctl disable docker   2  upstart  Ubuntu 14 and below       Docker is automatically configured to start on boot using upstart  To   disable this behavior  use the following command      echo manual   sudo tee  etc init docker override chkconfig    sudo chkconfig docker on   Done

[ubuntu] How to use systemctl in Ubuntu 14.04

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