Download Ubuntu Live Server 20.04

On the "live" install the settings for auto updates are in /etc/apt/apt.conf.d/20auto-upgrades while on "alternative" install they are in a different config file (just grep /etc for "Update-Package-Lists" string)

I want to create customized usb live .iso based on ubuntu-16.04.1-server-amd64.iso. I've seen this guide for desktop edition, but for some reason /casper directory is missing in server installation image. There is another article customizing from scratch, but it requires Host system to be installed first. Is there any way to create ubuntu-server live image without installing it?

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We are creating a live server for 18.04 LTS that will enable simpler installation in the common cases, but also be generally useful for everyday testing. See -server/daily-live/current/ for the current build, bugs and comments welcome.

This was a little more complicated than I was hoping, however, the end result works very well. I first attempted to create a live usb via a VM, installing directly to the USB from the bionic installer, however, it appears that it did not partition the drive correctly and would not boot.

Failing that, I created a virtual hdd for my vm, installed the bionic live server to that, and then created an image out of the virtual hdd. Once that was complete it was a simple matter of using dd to move the image onto my usb.

The server guide, prior to Focal was grossly out of date. Some pages had not been touched since Precise. We have hit some of the other pages, but some other pages like the install area are still needing re-writes.

When installing and selecting only the SSH server, the distribution installs correctly, but after booting from the disk the default terminal is tty7 (thus only the black screen is shown).

Switching the ALT + F1 terminal to tty1 solves the problem and shows a normal login prompt.

We support installing Ubuntu Desktop, and Ubuntu Server; there are other community flavors that are supported by the developer community which have lower hardware requirements than Ubuntu Desktop, such as Lubuntu; but users installing a barebones bootstrap and picking and choosing which packages to install on top of this is unsupportable and unsupported, and we are not going to do work to specifically enable users deploying Ubuntu in this way.

That looks like you are using the legacy installer. The url kernel parameter in the legacy installer is used for the preseed file. The url kernel parameter in the live installer is used for the iso image. It looks like the legacy installer is trying to use the iso image as a preseed file.

You should go back and review some guides. In particular, the information about getting the kernel and initram files from the live-server CD. You can not use the files from the legacy installer (whether the legacy iso, mini.iso, or the netboot archive).

Focus on the information about netbooting the live-server iso image. The steps are laid out in the first post of this topic. Once you have that working, then you can try to figure out autoinstall or cloud-init.

Ubuntu-Server is distributed on two types of images described below.Server install imageThe server install image allows you to install Ubuntu-Server permanently on a computer for use as a server. It will not install a graphical user interface.

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You boot it up. Select the "Help on SSH access" menu item. SSH server is already running with a randomly generated password listening on every interface with DHCP-assigned addresses (IPv4 and IPv6).

You don't need to install any browser plugins or manually add code snippets to your pages for the reload functionality to work, see "How it works" section below for more information. If you don't want/need the live reload, you should probably use something even simpler, like the following Python-based one-liner:

In order to enable HTTPS support, you'll need to create a configuration module.The module must export an object that will be used to configure a HTTPS server.The keys are the same as the keys in options for tls.createServer.

To get HTTP/2 support one can provide a custom HTTPS module via --https-module CLI parameter (httpsModule option for Node.js script). Be sure to install the module first.HTTP/2 unencrypted mode is not supported by browsers, thus not supported by live-server. See this question and can I use page on HTTP/2 for more details.

The server is a simple node app that serves the working directory and its subdirectories. It also watches the files for changes and when that happens, it sends a message through a web socket connection to the browser instructing it to reload. In order for the client side to support this, the server injects a small piece of JavaScript code to each requested html file. This script establishes the web socket connection and listens to the reload requests. CSS files can be refreshed without a full page reload by finding the referenced stylesheets from the DOM and tricking the browser to fetch and parse them again.

My first contact with Ubuntu was in 2006, a little after the first Long-Term Support (LTS) version 6.06 (Dapper Drake) was out. Although it still feels like yesterday, 15 years is a heck of a long time. Things were a bit different by then, as the Canonical LTS offer was of about 3 years on desktop and 5 years on server releases - instead of 5 years for both as it stands to this date. They even sent free CDs to anyone in the world, including shipping, from 2005 to 2011 when the initiative was ended. This may look stupid now, but downloading a CD over a 56k dial-up connection (which was still a thing in multiple parts of the world) used to take over a day. Even ADSL connections were not that much faster, as the most common ones were around 256-300 Kbps.

I've never had any issues installing over VMs, perhaps what's different with this one is that it's CLI only. I've tried all options for BIOS, and nearly ever other configuration. I've watched tutorials online installing older versions of Ubuntu, but can't seem to find any guides on "server".

You can optionally instruct the installer to set up the disk as an LVM group, as well as to encrypt it using LUKS. I chose to go with the LVM setup, as LVM offers a number of benifits, such as allowing easier backups of a running server. You can read more about LVM here: What is LVM and what is it used for?

Ubuntu will ask you to remove the installation medium and press Enter. You can remove the disk via_Devices_ > Optical Drives > Remove disk from virtual drive. You will need to put a check mark next to ubuntu-22.04-live-server-amd64.iso if it is not selected already.

In a nutshell, this depends upon you generating a public and a private SSH key pair. The private key is kept on your PC (and should be guarded carefully). The public key is copied over to the server you wish to connect to.

I've followed the docs, extracted vmlinuz and initrd from the casper dir of the Ubuntu ISO and just placed them at the base tftpboot dir. Things hum along, the ISO downloads to the client, after it enters BusyBox and fires up initramfs, it completes loading the ISO, but then stops at "Unable to find a live file system on the network". The thing is, I'm able to navigate and find the ISO on the client, and I'm even able to mount it and see that all of the contents are there.

By the way, this is the best article I found on setting up PXE install--I modified the instructions for Ubuntu 20.04, and had to make sure I copied over .disk (not mentioned in the article): _boot_ubuntu_server

Ubuntu Server is a variant of the Ubuntu OS that does not include a graphical user interface (GUI) by default. GUI applications consume system resources needed for server-oriented tasks, so Linux server distributions usually avoid a GUI in favor of the command-line terminal.

A display manager is an application that starts the display server, launches the desktop, and manages user authentication. The default GDM3 is a resource-intensive display manager. To conserve system resources, consider a lighter tool, such as SLiM or LightDM.

Ubuntu is discontinuing support for the Debian-installer based classic server installer from 20.04 LTS (Focal Fossa) making the way for subiquity server installer. This post shows how the Packer build config vary for both installers.

The problem I see is that I can't seem to specify both my installation source and simultaneously a separate preseed file(file with answers) as kernel cmdline options in PXE to get this installation finished. Maybe the installation source has-to-be/should be in the preseed? I am able to complete an interactive installation using my PXE server however.

If you are an administrator on the machine on which you will install the LIVE Server, it is recommended that you use the root installation. This will automatically check dependencies, and install the server into the place where all users can use it.

My first attempt was to do the installation on another computer and then attach the hard drive to the server. This might work in cases where the other computer conducting the installation and the server are very similar. However, the only other available computers to me are MacBooks. Using a MacBook to to run the installer created two problems.

First, MacBooks only have EFI boot and the installer running on the MacBook will boot via EFI. The installer detects that it has been booted by EFI and partitions the hard drive for EFI2. Unfortunately, in my case the server has no EFI support so this results in an unbootable disk. 17dc91bb1f