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I backed up the Lion dmg file when I purchased it via the Mac App Store. Dmg File Bootable Usb MacbookĪ Mac machine needs to be reformatted with Lion. Plugin the bootable USB and reboot the system. Once you have completed the mammoth task of creating a live USB of USB in Mac OS X, it is time to test your efforts. Step 7: Checking your newly created bootable USB disk.
#How to setup usb os reinstall mac mac os x#
These instructions will also work for Windows users who are running Mac OS X on a virtual machine and need to upgrade to the latest version. However, if you find yourself on a scenario where your device (iMac, MacBook Pro, Air, Mac Pro or Mini) is not responding and you happen to have a Windows 10 device, then you can still be able to make a USB bootable installation media for your Mac OS X to reinstall the operating system using the Recovery Assistant. This is why it’s recommended that you make a Mac OS X bootable USB when your Mac is in working conditions. If you’re still using a Mac OS X the time will come when your computer won’t boot, or a problem may arise where you can’t take control of the device, and booting from an OS X installation media will be required. Niresh Hackintosh USB.dmg files), just add the.dmg file to your E2B USB drive and keep the file extension as.DMG (or.dmgPTN). If you have a bootable Intel Mac.dmg file containing a single uncompressed HFS+ disk image (e.g. Step 3: Now, you need to import the downloaded Mojave dmg file into the program and choose the USB drive name from drop-down menu. Now, click Next button at the right side of Burn module. Step 2: Insert a USB drive into the PC and open DMG Editor software from desktop shortcut.
#How to setup usb os reinstall mac how to#
How to create a bootable installer for macOS - Apple Support.
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A.dmg file needs to be opened before you can use it to do anything, including using it to create a bootable installer. Find out which macOS your Mac is using - Apple Support. Once the DMG is burnt, the USB drive, now bootable can be used as an installer on any other mac System. The in-built disk utility on Mac is ideal for burning DMG to USB. This method may vary depending on which Mac OS version you are currently running, but the overall concept is same for all.