Create A Bootable Usb Drive Mac From Dmg

13-05-2021

Create A Bootable Usb Drive Mac From Dmg

Posted February 28, 2011 by Jimmy S in Apple Mac, Mac OS X Leopard, Mac system administration

Jun 11, 2015 How to Make Bootable USB drive with.DMG for Tiger, Leopard, Lion, Mountain Lion, Mavericks OS X. Can I make a bootable dvd usb drive with.dmg file? Make Bootable USB flash drive. If you want to erase the drive on a Mac before installing Yosemite, or start over at any time, you can use a dedicated installer drive to boot that Mac, erase its drive, and then install the OS. Jan 03, 2020 One high quality USB flash drive with 16GB of storage. A copy of Apple’s macOS (DMG file). How to make a macOS bootable USB installation media. Use these steps to create a bootable USB drive with the latest version of macOS: Download and install TransMac on your Windows PC.

Create Bootable Usb Drive From Dmg File Mac

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This recipe will explain how to make a USB Thumb Drive bootable with the OS X Lion Developer Preview installer on it and in turn allow you to install Lion on a Mac without an optical drive (ie Macbook Air line). We will need a copy of the installer dmg (not provided) and a 4GB USB Thumbdrive or Memorycard Reader w/memory card and a Mac to convert the dmg to a bootable usb thumb drive.

Requirements:

– OS X Lion installation DMG (hint: file named: mac_os_x_10_7_11a390.dmg)
– Mac running OS X Leopard or Snow Leopard
– USB Thumbdrive or Memorycard Reader w/memory card (4GB mininum, data will be destroyed).

This guide lets you restore the .dmg installer file for OS X Lion onto a usb thumbdrive. We can then boot the USB Drive on our Mac to install OS X Lion from it. This is very handy for us Macbook Air users that do not have an external optical drive.

Guide:

1. On your Mac, open up Disk Utility. Click on the USB Drive on the left.

2. On the right pane, go to the Restore tab.

3. Click on the Browse button and locate the .dmg installer for OS X Lion. (ie mac_os_x_10_7_11a390.dmg)

4. Once you have it chosen, click and drag your USB Thumbdrive from the left pane to the Destination box. (ie THUMBDRIVE in the screenshot) and then click Restore

I recommend erasing the destination, so be sure to backup any data on the thumbdrive prior to this step! This will take a few minutes to do. Once its finished, you now have a bootable OS X Lion install thumbdrive (basically just like what the Macbook Air ships with).

5. Hold Option/Alt after your see the Apple logo appear and boot with the thumbdrive in your Mac.

Choose the USB Drive to install OS X Lion from your USB Thumbdrive!

– I would recommend creating a separate partition for your OS X Lion installation as well.

Create Mac Bootable Usb Drive

NOTES:

– I have confirmed this working on a Macbook Air 11″, 2010, 1.6Ghz version.

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