Create Bootable Usb Dmg 10.12.1

Posted on  by
Create Bootable Usb Dmg 10.12.1 Rating: 8,8/10 4463 reviews

It was 2009 when Apple last released a new operating system on physical media. Things have proceeded remarkably smoothly since version 10.7 switched to download-only installers, but there are still good reasons to want a reliable old USB stick. For instance, if you find yourself doing multiple installs, a USB drive may be faster than multiple downloads (especially if you use a USB 3.0 drive). Or, maybe you need a recovery disk for older Macs that don't support the Internet Recovery feature. Whatever the reason, you're in luck, because it's not hard to make one.

As with last year, there are two ways to get it done. There's the super easy way with the graphical user interface and the only slightly less easy way that requires some light Terminal use. Here's what you need to get started.

Sep 20, 2016  Tech — How to make your own bootable macOS 10.12 Sierra USB install drive You'll need a Mac, an 8GB USB drive or SD card, and a little patience. How to install Sierra on PC without a mac vanilla install INFO/GUIDE. How to install Sierra 10.12. Before you start. Steps to make a bootable sierra installer USB: For this part, you'll need a USB stick of at least 8GB and lots of patience. Sierra - 10.12 1 point 2 years ago.

  • A Mac that you have administrator access to, duh. We've created Sierra USB stick from both El Capitan and Sierra, but your experience with other versions may vary.
  • An 8GB or larger USB flash drive or an 8GB or larger partition on some other kind of external drive. For newer Macs, use a USB 3.0 drive—it makes things significantly faster.
  • The macOS 10.12 Sierra installer from the Mac App Store in your Applications folder. The installer will delete itself when you install the operating system, but it can be re-downloaded if necessary.
  • If you want a GUI, we're recommending a different app than last year—take a look at Ben Slaney's Install Disk Creator from MacDaddy. There are other apps out there that do this, but this one is quick and simple.

If you want to use this USB installer with newer Macs as they are released, you'll want to periodically re-download new Sierra installers and make new install drives periodically. Apple rolls support for newer hardware into new macOS point releases as they come out, so this will help keep your install drive as universal and versatile as possible.

The easy way

Once you've obtained all of the necessary materials, connect the USB drive to your Mac and launch the Install Disk Creator. This app is basically just a GUI wrapper for the terminal command, so it should be possible to make install disks for versions of OS X/macOS going all the way back to Lion. In any case, it will work just fine for our purposes.

Install Disk Creator will automatically detect macOS installers on your drive and suggest one for you, listing its icon along with its path. You can navigate to a different one if you want, and you can also pick from among all the storage devices and volumes currently connected to your Mac through the drop-down menu at the top of the window. Once you're ready to go, click 'Create Installer' and wait. A progress bar across the bottom of the app will tell you how far you have to go, and a pop-up notification will let you know when the process is done. This should only take a few minutes on a USB 3.0 flash drive in a modern Mac, though using USB 2.0 or other interfaces will slow things down.

Sep 20, 2016 How to make your own bootable macOS 10.12 Sierra USB install drive You'll need a Mac, an 8GB USB drive or SD card, and a little patience. Andrew Cunningham - Sep 20, 2016 5:00 pm UTC. Don’t forget to read instructions after installation. Enjoy NEW Install High Sierra For Jailbreak Using CheckRa1n (Windows. For MAC OS/X. All files are uploaded by users like you, we can’t guarantee that NEW Install High Sierra For Jailbreak Using CheckRa1n (Windows For mac are up to date.

The only slightly less-easy way

If you don't want to use the Install Disk Creator, Apple has included a terminal command that can create an install disk for you. Assuming that you have the macOS Sierra installer in your Applications folder and you have a Mac OS Extended (Journaled)-formatted USB drive named 'Untitled' mounted on the system, you can create a Sierra install drive by typing the following command into the Terminal.

sudo /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install macOS Sierra.app --nointeraction

The command will erase the disk and copy the install files over. Give it some time, and your volume will soon be loaded up with not just the macOS installer but also an external recovery partition that may come in handy if your hard drive dies and you're away from an Internet connection.

Whichever method you use, you should be able to boot from your new USB drive either by changing the default Startup Disk in System Preferences or by holding down the Option key at boot and selecting the drive. Once booted, you'll be able to install or upgrade Sierra as you normally would.

macOS Catalina is the next major operating system for Mac. If you mashed your fingers all over that install button before considering that you may not be ready for it, you can downgrade back to macOS Mojave. If you follow these steps you'll be back to your old setup in no time.

Note: If you are reading this article on the Mac that you want to downgrade on, switch to another device or print this page before continuing so you can read along as you go.

Create

Important information for Macs with the T2 security chip

Before you try to use a bootable installer on your Mac if you have a 2018 or newer MacBook Pro, MacBook Air, or Mac mini, you may need to make sure to allow booting from external media before you attempt to downgrade. If you've enabled the Startup Security Utility, check to make sure you'll be able to use a bootable external drive. Here's how.

Note: You'll need the firmware password you used to enable the Startup Security Utility. This is different from your administrative password and your Apple ID. Make sure you know the correct password to access the Startup Security Utility before you begin.

  1. Restart your Mac.
  2. Hold down Command+R right when you see the Apple Logo. This will put your Mac into Recovery Mode.
  3. Click Utilities in the Menu Bar.

  4. Click on Startup Security Utility.

  5. Enter your Administrator credentials.

  6. Tick the box to Allow booting from external media.

Step 1: Back up your Mac

This process will erase macOS Catalina from your hard drive entirely. That means any files, programs, or documents you've been working on while using macOS Catalina will also be erased if you don't back them up first. Use an external hard drive or a cloud-based program like DropBox, OneDrive, or iCloud. If you don't save these important files somewhere off of your computer you will lose them.

Step 2: Create a bootable drive of macOS Mojave

Before you erase macOS Catalina from your computer, download macOS Mojave from the Mac App Store. You'll need a copy of macOS Mojave on an external hard drive in order to downgrade from macOS Catalina.

Follow the steps linked below to make a bootable installer drive for macOS Mojave.

Note: Making a bootable installer requires the use of Terminal. If you don't feel comfortable making changes to your Mac with Terminal, you can create a bootable disk using the DiskMaker X program.

Step 3: Erase macOS Catalina

You'll need to erase your hard drive before re-installing Mojave. Remember, back up your Mac before performing this step.

  1. Connect your Mac to the internet via Wi-Fi or Ethernet.
  2. Click on the Apple icon in the upper left corner of the screen.

  3. Select Restart from the drop-down menu.

  4. Hold down Command+R, and keep holding the keys until your computer reboots. This will put your computer into Recovery Mode.
  5. Click on Disk Utility in the OS X Utilities selector.

  6. Click Continue.

  7. Select your Startup Disk.

  8. Click on the Erase tab at the top of the window.

  9. Enter a name for the file to be destroyed (Like macOS Catalina or something).
  10. If your Mac is using HFS+, select Mac OS Extended (Journaled) from the format list. If your Mac is using APFS, select APFS from the format list.
  11. If Scheme is available, select GUID Partition Map.

  12. Click Erase.

After the process is complete, quit Disk Utility from the drop-down menu in the upper left corner of the screen to go back to the OS X Utilities selector.

Step 4: Reinstall macOS Mojave

After you have erased macOS Catalina, you will want to reinstall Mojave.

NOTE: If your Mac came with macOS Mojave, you can restart your Mac while holding down Shift-Option-Command-R to simply install the operating system that came with your Mac. Otherwise, follow the steps below to install Mojave back on your Mac.

  1. Connect your Mac to the internet via Wi-Fi or Ethernet.
  2. Plug the bootable hard drive you made with Mojave on it into your Mac.
  3. Click on the Apple icon in the upper left corner of the screen.

  4. Select Restart from the drop-down menu.

  5. Hold down Option while your computer restarts. This will send you to the option to select a startup disk.
  6. Select your bootable drive with macOS Mojave from the list of startup disk options. macOS Mojave will begin installing on your Mac.
  7. Click Continue in the macOS Mojave installation window.

Create Bootable Usb Dmg 10.12.1 Update

macOS Mojave will install like a standard update. You will agree to the licensing terms before the software reboots on your Mac.

Step 5: Restore settings from an earlier macOS Mojave Time machine backup

Create Bootable Usb Dmg 10.12.1 Download

If you have a recent backup of your Mac saved via Time Machine (which you should), you can use it to reinstall the settings you have saved from macOS Mojave.

  1. Connect your Mac to the internet via Wi-Fi or Ethernet
  2. Click on the Apple icon.

  3. Select Restart from the drop-down menu. Remodeler checklist for dmg before kitchen remodel ideas.

  4. Hold down Command+R when you hear the startup chime and keep holding the keys until your computer reboots.
  5. Select Restore from Time Machine Backup in the OS X Utilities selector.

  6. Click Continue.

  7. Click Continue after reading the important information about restoring from a backup.
  8. Select the Backup source for where your Time Machine backup is stored.
  9. Click Continue.
  10. Select the most recent macOS Mojave backup on the drive.

  11. Click Continue.

Your Mac will begin restoring from the Time Machine backup and then reboot. This process can take a while, so grab a cup of coffee while you wait.

If you run into any problems while trying to downgrade your Mac operating system, let us know in the comments.

Updated September 2019: Updated for macOS Catalina.

macOS Catalina

Main

We may earn a commission for purchases using our links. Learn more.

U.S. and Afghan forces successfully captured insurgents using an iPhone app

Create Bootable Usb Online

When their specialist kit failed, soldiers turned to an iPhone to get the job done.