If you are preparing to install macOS on multiple computers, one of the things that can make your life simpler (and the waiting shorter) is a bootable USB installer.
The idea of the installer is that you only need to download the macOS Installer.app from the App Store once. Usually, when you run the installer after downloading it, it’ll delete itself and you have to go through the whole download process again on each machine or disk that you want to install macOS onto. By making a bootable USB drive, you simply plug the drive in to your mac, launch the installer app and tell it where to install the OS. You can repeat this as many times as you like as the installer will remain safe on your USB.
Jul 02, 2020 The macOS installer says that you may not install to this volume because it is part of an Apple RAID. About APFS and Mac OS Extended Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format for you. If you’d like to install Big Sur on multiple Mac computers without having to download the installer each time, or just want more flexibility in terms of installing the software, you’ll need to create a bootable installer for the macOS Big Sur beta. Thankfully, this can be accomplished in just a few steps.
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There are various ways to make a bootable USB installer, but they all involve the same process:
https://havenrenew550.weebly.com/what-does-mojave-do-for-my-mac.html. 1. Download the macOS Installer from the App Store.
2. Run the createinstallmedia command from the Terminal, an AppleScript or a helper app.3. Reboot your mac, choosing the newly created USB as the startup disk. 4. Run the installer.app from the USB.
Step 2 is where the fun is. The
createinstallmedia command can be tricky to get right, particularly if you’re not familiar with working on the command line. For those of you that are, follow Apple’s instructions here.
Why Do You Need A Bootable Installer For Macos Download
For a little more convenience, I wrapped all that inside an AppleScript which will first ask you for the location of the installer, then ask you to choose the USB target.
For maximum convenience, I also wrote a free little Swift app I’ve dubbed ‘Boot Buddy‘ (cos “Create bootable macOS Installer Drive.app” just didn’t quite have the right ring to it.!) that will present the whole thing in a neat little user interface. Three clicks, more or less, and you’re done. https://havenrenew550.weebly.com/blog/latest-version-of-imovie-for-el-capitan.
Why Do You Need A Bootable Installer For Macos Mac
Boot Buddy doesn’t require an admin password to install, but you do need to provide an admin password to actually create the bootable installer as the
createinstallmedia process has to be run as root. Boot Buddy doesn’t see or use this in any way whatsoever other than to start the createinstallmedia process or to cancel it (if you choose to do so); authorisation is handed off to macOS to take care of.
![]() Why Do You Need A Bootable Installer For Macos MacWhy Do You Need A Bootable Installer For Macos Taller For Mac Os Lion
Boot Buddy requires macOS 10.11 or higher and can create bootable USBs from Mavericks, Yosemite, El Capitan, Sierra and High Sierra installer apps.
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