What is a Linux ISO image?
- What is a Linux ISO image?
In the context of files and programs, an "image", whether an ISO or other media image, is simply a file that can be used as an identical copy of the original media. This file not only contains individual data files, but it also contains track and sector information and arranges all this information in a file system, just like disk media. Image files, unlike normal files, are usually not opened; rather, they are mounted.
An ISO image (.iso) is simply a CD-ROM image saved in ISO-9660 format. ISO images are mainly used as source files from which to create CDs. As an example, most distributions of Linux release ISO images of the installation CDs. These images are usually freely available online. Once you download the image, you can use software to recreate the physical installation media.
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