Ubuntu

Ubuntu is a Linux distribution based on Debian GNU/Linux. There are Live CD versions which allow later installation and versions meant only for installations.

Download an ISO file from https://ubuntu.com/download and burn to CD or install to USB key with unetbootin, if you plan to install it on a server there are two installer versions Ubuntu Server and Ubuntu Server Live ^[1].

• Step by Step installation of Ubuntu.
• [1] Community Documentation
• [2] playing proprietary formats
• Automatic Updates https://help.ubuntu.com/lts/serverguide/automatic-updates.html

Ubuntu 18.04 LTS (BionicBeaver):

• chrony replace ntpd as the recommended server for the NTP protocol.^[2]
• Some application delivered by default as snaps^[3]snap search canonical, such as Docker, Kubernetes, microk8s, aws-kernel or azure-kernel

Ubuntu 16.04 LTS:

• netplan^[4] for network configuration
• Ceph and ZFS filesystems supported
• Snap packages

You can also visit wikipedia:Ubuntu_version_history or https://wiki.ubuntu.com/Releases for a detailed list of versions and changes

Canonical provides official support for Ubuntu

• Questions for Ubuntu

1. Install applications using snaps
2. Check your Ubuntu version: lsb_release -a
3. Learn about Ubuntu releases cycle policies: https://ubuntu.com/about/release-cycle
4. Read # Learn about Ubuntu releases cycle policies: Linux_server_administration/apt/Automatic_updates

Configuration

1. Change your default editor; sudo update-alternatives --config editor^[5]

Maintenance

1. Update your Ubuntu version: sudo apt update && apt upgrade -y

• Linux distributions: RHEL, Ubuntu Variants
• Outdated: Ubuntu 6.06 LTS Installation