Macos High Sierra - 10.13.5.iso

macOS High Sierra (version 10.13) is the fourteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. Version 10.13.5 was a significant update released in June 2018. An ISO file of this operating system is typically used for virtualization (running macOS on non-Apple hardware via software like VMware or VirtualBox) or for creating bootable media on Windows PCs.

| Problem | Likely Cause | Solution | |---------|--------------|----------| | ISO won’t boot in VM | Incorrect format (not hybrid ISO) | Use dd or conversion tools to create hybrid image. | | “This copy of the Install macOS High Sierra application is damaged” | Invalid certificate (expired) | Change system date to June 2018 during install. | | ISO size is 5–6 GB instead of ~5.2 GB | Missing BaseSystem or packages | Incomplete creation – rebuild ISO. | | VMware won’t recognize ISO | Wrong disk type | Ensure ISO is added as SATA or IDE, not SCSI. |

Check the file’s integrity by comparing its SHA-1 hash. For a genuine 10.13.5 ISO created from Apple’s installer, hashes will vary depending on conversion method, but you can check the original InstallESD.dmg inside Apple’s installer: macos high sierra 10.13.5.iso

Better: Mount the ISO and check if it contains a hidden .IABootFiles or BaseSystem.dmg. If it fails to mount or shows unknown partitions, suspect corruption.

If Terminal seems daunting, tools like "Install Disk Creator" or "DiskMaker X" can create bootable USB drives, but not directly to ISO. For ISO, a community script like "macos-guest-virtualbox" (on GitHub) automates the entire process. macOS High Sierra (version 10

Distributing a pre-made macOS High Sierra 10.13.5.iso occupies a legal gray area. Apple’s EULA for macOS allows installation only on “Apple-branded computers.” While converting for personal use on a genuine Mac or a virtualized Mac host (on Apple hardware) is generally tolerated, distributing the ISO to third parties violates Apple’s copyright. Moreover, downloading random ISO files from torrent sites or file-sharing forums poses severe security risks: attackers can bundle malware, rootkits, or keyloggers into the modified system image.

The safest approach remains self-creation from a legitimate installer. For enterprises, using Apple’s own createinstallmedia or a macOS Server caching service is the only compliant method. Check the file’s integrity by comparing its SHA-1 hash

  • Use virtualization software documentation (VirtualBox, VMware, Parallels) for precise image formats and settings.

    • The headline feature of 10.13.5 was Messages in iCloud.

    # Create a disk image from the installer
hdiutil create -o /tmp/HighSierra -size 8500m -volname HighSierra -layout SPUD -fs HFS+J