Creating custom Ubuntu images

Roll Your Own

Article from Issue 250/2021
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With a little planning, Cubic makes customizing Ubuntu ISOs simple and intuitive, saving you time on your post-install modifications.

You probably have folders full of scripts for post-install customizations for things like installing or removing packages; setting customized defaults, fonts, themes, and wallpapers; or copying files, folders, or settings from local storage. In larger organizations, these post-install customizations can include standard practices for IP address assignment, network interface specifics, network share preferences, boot config arguments, and more.

When it comes to installing the vanilla Ubuntu ISO [1] (desktop or server), your organization most likely performs these post-install customizations on dozens or even hundreds of devices, over and over again. While minor customizations based on an individual machine's or a particular machine's intended purpose are inevitable, the overarching changes to the default image are ripe for incorporating into a new custom image.

With Cubic [2], you can create a customized Ubuntu Live ISO image using Cubic's GUI wizard. Cubic takes the simplicity of a typical Ubuntu installation and combines it with all of the things that a user would normally do in the terminal or GUI post-installation. Cubic's strength lies in its ability to function as a cloning machine. With a little bit of initial planning, Cubic can you save you time when it comes to deploying machines, whether they're desktops or servers.

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