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How to Mount and Unmount an ISO Image in RHEL/CentOS/Fedora and Ubuntu

An ISO image or .iso (International Organization for Standardization) file is an archive file that contains a disk image called ISO 9660 file system format. Every ISO file have .ISO extension has defined format name taken from the ISO 9660 file system and specially used with CD/DVD Rom’s. In simple words an iso file is a disk image.