An ISO file is a disk image that contains an exact duplicate of data found on an optical disc or installation media. While Apple distributes macOS updates via the Mac App Store in .app format, an ISO file is required for distinct technical use cases:
hdiutil convert /tmp/HighSierra.dmg -format UDTO -o /tmp/HighSierra.cdr Use code with caution.
macOS High Sierra 10.13.5 remains a popular choice for users who need to run legacy applications, virtualize older systems, or support older Intel-based Mac hardware that cannot upgrade to modern macOS versions. The release of is particularly sought after for creating bootable virtual machines in environments like VMware, VirtualBox, or QEMU, as well as for making clean installations on older Macs.
If you are trying to run 10.13.5 on a 2020+ Mac or PC, the drivers for your network adapter, audio, and GPU likely do not exist. This OS is built for hardware from 2009–2017. macos high sierra 10.13.5.iso
Reviving older Intel Macs that are not officially supported by newer operating systems like macOS Monterey, Ventura, or Sonoma.
# 1. Create a blank disk image wrapper hdiutil create -o /tmp/HighSierra -size 8000m -layout SPUD -fs HFS+J # 2. Mount the created image to your system hdiutil attach /tmp/HighSierra.dmg -noverify -mountpoint /Volumes/HighSierra # 3. Write the installation files to the mounted volume sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/HighSierra --nointeraction # 4. Unmount the newly created installer volume hdiutil detach /Volumes/Install\ macOS\ High\ Sierra # 5. Convert the DMG file into an ISO/CDR format hdiutil convert /tmp/HighSierra.dmg -format UDTO -o /tmp/HighSierra.cdr # 6. Rename the file extension to .iso and move it to your Desktop mv /tmp/HighSierra.cdr ~/Desktop/HighSierra.iso Use code with caution.
Link the CD/DVD drive to your local copy of the High Sierra ISO. An ISO file is a disk image that
Here is a deep review of the OS and a critical analysis of the file format.
Another option is to use a dedicated utility. For example, iBoysoft DiskGeeker for Mac offers a "Create boot disk" function that can download the macOS installer and convert it into an ISO file, significantly simplifying the process.
This article provides a comprehensive overview of the 10.13.5 update, the importance of the ISO format, and how to safely utilize it in 2026. What is macOS High Sierra 10.13.5? The release of is particularly sought after for
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/HighSierra --nointeraction Use code with caution.
When the download completes, the installer will open automatically. without running the setup. The file named Install macOS High Sierra.app will now sit safely in your /Applications folder. Step 2: Convert the Installer to ISO via Terminal
High Sierra is famously the last version of macOS to fully support official Nvidia web drivers (for Pascal and Maxwell architecture graphics cards, such as the GTX 1080). For PC users building a Hackintosh with these specific GPUs, 10.13.5 or 10.13.6 is the absolute end of the line. Key Features Introduced in macOS 10.13.5
Provided essential updates for Mac hardware released between 2009 and early 2018. Why Use a "macOS High Sierra 10.13.5.iso" File?
Apple’s End User License Agreement (EULA) restricts the installation of macOS to Apple-branded hardware. Final Verdict