You will see this message appear: "To continue we need to erase the volume at /Volume/Untitled," press Y and press Enter. This will not remove the requirement for the Mac to be connected to the internet during the installation process but it should speed up the process quite a bit.Step 7: Afterward, type the Admin password and hit the "Enter/Return" key.
The description is a bit sparse, but from what I gather this is download additional assets, like firmware installers and bundle them with the other installer files on the installer drive instead of downloading them on-demand during installation. The new argument in the Mojave is called -downloadassets. downloadassets, Download on-demand assets that may be required for installation.Įxample: createinstallmedia -volume /Volumes/Untitled
nointeraction, Erase the disk pointed to by volume without prompting for confirmation. volume, A path to a volume that can be unmounted and erased to create the install media. When you run the Mojave createinstallmedia tool without arguments you get the usage documentation: $ /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia While the support article covers the basics, the tool gained a new feature in Mojave which is not documented in the article. Also, while it not a good general configuration, it can be very useful to enable external boot on machines that you frequently re-install for testing. Nevertheless, having an bootable external installer is still every useful for ‘legacy’ (i.e. But it is expected that any new Macs released from now on (as in maybe at the Apple Event tomorrow?) will also have Secure Boot. As of this writing this affects the iMac Pro and the 2018 MacBook Pro. Note: Secure Boot Macs with the T2 chip cannot boot from external drives in the default configuration. When run, the tool requires a path to an external volume or partition, which will be erased and replaced with a bootable installer volume. The tool is called createinstallmedia and can be found in /Applications/Install macOS Sierra | Mojave].app/Contents/Resources/. Apple actually has documentation for this tool. Apple has included a tool to build a bootable external installer drive with the macOS Installer application for a while now.
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