This requires your admin password.
Always ensure you cross-verify MD5 or SHA-256 checksums to avoid tampered or malicious downloads.
Disconnect your computer or virtual machine completely from the (unplug Ethernet or disconnect Wi-Fi).
If you are using VirtualBox or VMware, you may need an .iso file instead of a .dmg . and locate the InstallESD.dmg file inside. Use Terminal to Convert: mac os x mavericks 10.9 iso and dmg image download
Plug in a USB drive (16GB+ recommended). Open Disk Utility, select the USB, and erase it using Mac OS Extended (Journaled) formatting and GUID Partition Map .
The Internet Archive (archive.org) holds a massive collection of legacy software. Search for – you will find verified, user-uploaded DMG files with checksums published.
Allocate at least 2 CPU cores, disable floppy drives in the settings, and ensure your storage controller is set to SATA rather than IDE. Set the OS identifier to "Mac OS X (64-bit)". This requires your admin password
This creates a 7GB sparse image.
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due to copyright and security concerns. Apple's software license agreement prohibits distributing macOS without authorization. If you are using VirtualBox or VMware, you may need an
Apple OS X Mavericks (10.9. 5) : Apple, Inc : Free Download, Borrow, and Streaming : Internet Archive. Internet Archive Download OS X Mavericks 10.9.5 Update (Combo)
sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/MavericksInstaller --applicationpath /Applications/Install\ OS\ X\ Mavericks.app --nointeraction Use code with caution.
Execute the native createinstallmedia command built into the installer payload:
