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DISKDEFINES File - What is it and how do I open it?

Learn about .DISKDEFINES files and view a list of programs that open them.

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Overview

What is a DISKDEFINES file? A DISKDEFINES file is a plain text file commonly found on Linux LiveCD installer discs, such as Ubuntu or other Linux distribution installation media. It is a Readme file that contains information about the disc, including version details, release notes, and installation instructions. Linux system administrators, developers, and anyone preparing to install Linux from a CD, DVD, or .ISO image are most likely to encounter DISKDEFINES files.

More Information Linux installation programs and system utilities may reference this file during setup to verify disc contents or provide guidance to the user. It is not an executable file and does not directly affect the installation process, but it serves as a helpful reference for users and automated scripts.

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.DISKDEFINES File Extension

Linux LiveCD Information File

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What is a DISKDEFINES file?

A DISKDEFINES file is a plain text file commonly found on Linux LiveCD installer discs, such as Ubuntu or other Linux distribution installation media. It is a Readme file that contains information about the disc, including version details, release notes, and installation instructions. Linux system administrators, developers, and anyone preparing to install Linux from a CD, DVD, or .ISO image are most likely to encounter DISKDEFINES files.

More Information

Linux installation programs and system utilities may reference this file during setup to verify disc contents or provide guidance to the user. It is not an executable file and does not directly affect the installation process, but it serves as a helpful reference for users and automated scripts.

Common DISKDEFINES Filenames

README.diskdefines - The common name of a DISKDEFINES file found on a Linux LiveCD installer disc.

How to open a DISKDEFINES file

You can open DISKDEFINES files with any text editor since the files store plain text. Several options include Microsoft Notepad (Windows) and Apple TextEdit (macOS).

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Programs that open DISKDEFINES files

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Linux

Linux LiveCD Installer

Category: Misc Files

Updated: October 16, 2025

FAQ

What is a DISKDEFINES file?↓
A DISKDEFINES file is a plain text file commonly found on Linux LiveCD installer discs, such as Ubuntu or other Linux distribution installation media. It is a Readme file that contains information about the disc, including version details, release notes, and installation instructions. Linux system administrators, developers, and anyone preparing to install Linux from a CD, DVD, or .ISO image are most likely to encounter DISKDEFINES files.
How do I open a .diskdefines file?↓
You can open DISKDEFINES files with any text editor since the files store plain text. Several options include Microsoft Notepad (Windows) and Apple TextEdit (macOS).

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