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+ <!DOCTYPE html>
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+ <html lang="en" xmlns="http://www.w3.org/1999/xhtml">
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+ <head>
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+ <title>Create Almost Any MacOS Installation Media [Developer Betas | Old Versions]</title>
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+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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+ <meta charset="UTF-8">
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+ <meta name="keywords" content="ISO,Installation,MacOS,Media,Virtual Machine,Monterey,Big Sur,Ventura,MacOSX,OSX,Installation ISO,Installation Media,GibMacOS,Install Guide,Home Lab,Creation,Hypervisor,VM,How To,Tutorial,i12bretro">
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+ <meta name="author" content="i12bretro">
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+ <meta name="description" content="Create Almost Any MacOS Installation Media [Developer Betas | Old Versions]">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <meta name="revised" content="09/30/2022 10:28:22 AM" />
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+ <link rel="icon" type="image/x-icon" href="includes/favicon.ico">
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+ <script type="text/javascript" src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
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+ <script type="text/javascript" src="includes/js/steps.js"></script>
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+ <link href="css/steps.css" rel="stylesheet" type="text/css" />
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+ </head>
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+ <body>
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+ <div id="gridContainer">
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+ <div class="topMargin"></div>
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+ <div id="listName" class="topMargin">
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+ <h1>Create Almost Any MacOS Installation Media [Developer Betas | Old Versions]</h1>
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+ </div>
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+ <div></div>
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+ <div id="content">
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+ <h2>Things You Will need</h2>
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+
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+<ul>
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+ <li>An existing MacOS Device or VM</li>
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+ <li>30-40 GB of free disk space</li>
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+</ul>
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+
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+<h2>Downloading MacOS Installers</h2>
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+
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+<ol>
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+ <li>Download gibMacOS <a href="https://github.com/corpnewt/gibMacOS" target="_blank">Download</a></li>
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+ <li>Extract the downloaded .zip file</li>
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+ <li>Double click the gibMacOS.command file > Click Open to confirm</li>
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+ <li>If prompted to install Python, type Y > Press Enter</li>
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+ <li>Use the keyboard and on screen instructions to navigate the menus and download the desired version of MacOS</li>
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+</ol>
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+
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+<h2>Creating USB Installation Media</h2>
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+
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+<ol>
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+ <li>Input a USB flash drive, 16GB or larger</li>
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+ <li>In Finder, navigate to the gibMacOS folder /</li>
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+ <li>Double click the InstallAssistant.pkg file to install it</li>
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+ <li>Follow the prompts of the installer to complete the setup</li>
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+ <li>Start LaunchPad from the dock</li>
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+ <li>Search disk utility > Click Disk Utility to launch it</li>
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+ <li>Select the USB flash drive on the left side</li>
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+ <li>Select Erase > Set the Name to MacOSUSB and the Format to ExFAT > Click Erase</li>
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+ <li>Start LaunchPad from the dock</li>
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+ <li>Search terminal > Click Terminal to launch it</li>
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+ <li>Run the following commands in terminal, altering the MacOS Installer name as needed
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+ <div class="codeBlock CMD"># write the installation files to USB flash media<br />
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+ sudo /Applications/Install\ macOS\ Ventura\ beta.app/Contents/Resources/createinstallmedia --volume /Volumes/MacOSUSB</div>
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+ </li>
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+ <li>When prompted, enter your password</li>
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+ <li>Type Y and press Enter to confirm the action</li>
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+</ol>
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+
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+<h2>Creating a Bootable .iso</h2>
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+
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+<ol>
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+ <li>Start LaunchPad from the dock</li>
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+ <li>Search terminal > Click Terminal to launch it</li>
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+ <li>Run the following commands in terminal, altering the MacOS Installer name as needed
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+ <div class="codeBlock CMD"># create temporary disk image, make sure its larger than the downloaded installer<br />
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+ hdiutil create -o /tmp/macOS -size 13800m -volname macOS -layout SPUD -fs HFS+J<br />
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+ # mount the temporary disk image<br />
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+ hdiutil attach /tmp/macOS.dmg -noverify -mountpoint /Volumes/macOSISO<br />
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+ # use createinstallationmedia utility to copy files<br />
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+ sudo /Applications/Install\ macOS\ Ventura\ beta.app/Contents/Resources/createinstallmedia --volume /Volumes/macOSISO --nointeraction<br />
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+ # unmount the temporary disk image, alter the OS name as needed<br />
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+ hdiutil detach -force /Volumes/Install\ macOS\ Ventura\ beta<br />
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+ # convert the disk image to .iso<br />
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+ hdiutil convert /tmp/macOS.dmg -format UDTO -o ~/Desktop/macOS.cdr<br />
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+ # change the extension from .cdr to .iso<br />
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+ mv ~/Desktop/macOS.cdr ~/Desktop/macOS.iso</div>
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+ </li>
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+</ol> </div>
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+ </div>
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+ </body>
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+ </html>
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+
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