Burn bootable iso mac os x lion

How to Make a Bootable Mac OS X Mountain Lion 10.8 USB Thumb Drive

If not, you may have to click the " Restore " tab as seen below. If you need help using your disk to restore your Mac, Apple has a helpful page in its Support section. When following these instructions we got a persistent error message when restoring the boot image to the USB partition, "Restore Failure Could not restore — Invalid argument". However it appears that this has no effect on the restore, and the USB is usable afterwards.

Yes, you can ignore this error.

How To Create a Bootable Mountain Lion (OS X 10.8) Installation DVD or USB Drive [Updated]

We've seen it too on some Macs, but as you say, it still works just fine. I tried booting in with my usb but it doesn't boot. It just doesn't start the installer process.

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Start holding it before you see the apple logo, and keep holding until you see the list of bootable drives. From that menu you can select the USB drive to boot from. Get the Gadget Hacks Daily Life hacks for your smartphone. Sign Up.

  • Macworld Categories;
  • How to Make an OS X Lion Bootable DVD: 8 Steps (with Pictures)?
  • Finder Method.
  • Part 1: How to Burn DMG to USB on Mac for Free (Disk Utility).

That's great! If you already have them you can jump straight to how to make a bootable installer and which createinstall code to use.

  • Burn a DMG or ISO File to Disk (Macintosh) | UMass Amherst Information Technology | UMass Amherst.
  • Method 1: Create a Live USB Using Etcher (Easy);
  • How to make a bootable Lion install disc or drive | Macworld.
  • Install OS X Lion Using a Bootable DVD;

If you want to run macOS from an external drive, which is slightly different, read this. There are two main things you'll need to make your bootable install.

How to quickly make a Mac OS X bootable USB on Windows • Pureinfotech

The whole process shouldn't take very long. We recommend a 12GB or more drive, this may be more than you need, for example, the installer for the beta of Mojave was 5. We recommend a Flash memory stick as it will be quicker. If you have data on the drive that you plan to use you will need to transfer it to another drive, or get a new drive, as it will be completely formatted and erased.

Depending on which version of macOS you are running, and the version you want to to install, you will either be able to get the installation files from Software Update in System Preferences, the Mac App Store, or you will have to obtain them from elsewhere. The Mac App Store is probably the easier option, but there can still be difficulties depending on which version of macOS your machine is running, and if you were hoping to grab older installation files that can be tricky - we show you how here getting older versions of macOS.

It goes without saying that you will need an internet connection to download the software and you may need it while installing the version of macOS if it needs to check for firmware or confirm your iCloud credentials.


DiskMaker X

As we said already, how you get the installation files will depend on the version of macOS you are running currently and the version you want the installer for. But stop before clicking to install - you need to copy this installation file before installing on your Mac if you want to have access to it to make the boostable installer.

Creating a Bootable Install Disc for Mac OS X Lion

Instructions for that below. If you are already running Catalina, Software Update won't show you the software as available to download, but you can still get the installation files from the Mac App Store. Again, don't click on install as you need the installation file for the next stage of this tutorial We go into more details about getting and installing the Catalina beta here.

We have the code you'll need for installing the Catalina beta via an external drive below.