In this example, hdiutil is used to create the ISO image. The InstallESD.dmg file must be converted to a bootable in order for it to be compatible for inserting into the virtual DVD drive of a virtual machine that is running on VMware ESXi. A DMG file is a mountable Apple disk image file that is widely used in the macOS world for distributing software. Go to Contents > SharedSupport and find the InstallESD.dmg file. Right click the “Install macOS Sierra.app” file and select “Show package contents” in the context menu. You should find the “Install macOS Sierra.app” file there. Go to the Finder and click Applications in the left pane of the window. Once the macOS Sierra installation package has been downloaded, you can find the appropriate file in the Applications directory. After resuming the download of a file, the download speed increases for the appropriate period of time. Then left click the icon once more to resume the download. If this method does not increase the download speed, left click the Downloading icon to pause your download. Sometimes, temporary changing the DNS settings in your network configuration may help you to increase the download speed. Downloading the installation package of macOS Sierra may be a time-consuming process (the slow downloading of macOS Sierra is a common issue).

Once the downloading process has begun, you should be able to see the progress of the download in the Launchpad. Click the Download button to begin downloading the installation package. Once the App Store window with macOS Sierra is open, you can read the operating system information. A machine with Mac OS is required for this process, as you will be redirected to the App Store after entering these links in the browser (browsers on Windows or Linux are not able to recognize App Store links). This blog post explains the installation process by using Mac OS X 10.12 Sierra as an example. If you do not already have the ISO image, you can create the installation ISO image manually by downloading a package from Apple’s official website.

To start, you must have the ISO image of the macOS installer.

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