Here are the methods to create a bootable USB drive on Mac. There are a few general guidelines that can help get your machine started which are mentioned above, regardless of the OS the user prefers. How to Create Bootable USB on Mac.
![]() 3.There was a brief transition period where Apple did offer the option to purchase Mac OS 10.7 Lion on a USB thumbdrive for USD69.00 but that went away quickly and left us with only the Restore Firmware and the App Store.Make a bootable installer drive: The quick way. Connect the USB drive to your Mac. How to make a bootable USB on Mac: Open Terminal by following Applications Utilities Terminal. Make sure that you have the installation files on your Mac before trying this step out. Make A Bootable Usb How To Create ACheck Apple’s System Requirements for Mac OS 10.8 Mountain Lion to ensure that your Mac meets the minimum otherwise Mountain Lion will refuse to install Only to decide later that you can’t live with it and would like to revert to Mac OS 10.8 Mountain Lion, you would be in for a rude shock to realise that if you attempt a Restore, the option to revert to Mountain Lion is unavailable.It appears, unfortunately, Apple’s latest tactic to ensure that all its ‘faithful’ followers move forward and never back is to control the availability and deployment of its iOS and Mac OS platforms.This tutorial is created for those of us who either maintain the rebelliousness of Steve Jobs or have internet connections as impressive as drizzle to be able to restore to Mac OS 10.8 Mountain Lion on demand from a USB installer, be it a thumb drive or an external hard drive.Note: before you read on, the following Bootable Installation USB creation process only works for Mac OS 10.8 Mountain Lion creating a bootable Installation USB for Mac OS 10.9 Mavericks requires a slightly different process.Creating Mac OS 10.8 Mountain Lion Bootable Installation USBThe following, details how to create a Bootable Installation USB for Mac OS 10.8 to facilitate quick installs without an internet connection: This comes with a subliminal check that ensured that you cannot restore to earlier versions of Mac OS that Apple does not want you to revert to, much like how Apple has implemented a similar mechanism into iOS as well.So, if you have say, unwittingly been enticed to click on the “Free Upgrade” button in the App Store when Apple launched Mac OS 10.9 Mavericks as a free upgrade. It has been updated to support High Sierra.This not only leaves hardcore old school Mac aficionados gritting their teeth but also a very real challenge when it comes to having to restore your Mac in places where there is no internet connection or the internet connection is as fast as a drizzle.Added to that, much like Apple’s iOS platform Apple also decided to require Macs to connect with Apple’s servers every time you perform a restore. Solidworks download for macRight click the “Install OS X Mountain Lion.app” icon and select “Show Package Contents” Upon purchasing Mac OS 10.8 Mountain Lion, find the Installer on your Mac – it is called “Install MacOSX Mountain Lion.app” and it should have been downloaded to your Applications folder Obtain a copy of Mac OS 10.8 Mountain Lion – most commonly acquired on the day Mountain Lion was released on the App Store for purchase, otherwise you will have get creative in sourcing a copy Drag Mac OS X Install ESD icon into the Source field on the right (if it isn’t already there)and Select InstallESD.dmg and click “Restore” On the sidebar (left side) of Disk Utility you should see InstallESD.dmg with Mac OS X Install ESD below it Launch Disk Utility (/Applications/Utilities/Disk Utility) The mounted volume is called “Mac OS X Install ESD” ![]() Click on the Mac OS X USB hard drive icon to startup your Mac using the Mac OS 10. You will be greeted by a boot screen displaying all bootable devices Hold the Option key and power on your Mac
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