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1. #Make a bootable usb os x yosemite how to#
2. #Make a bootable usb os x yosemite install#
3. #Make a bootable usb os x yosemite download#

Some files that you need to create USB flash drive is hidden.

#Make a bootable usb os x yosemite how to#

How to create installation USB drive with Disk Utility and Finder

#Make a bootable usb os x yosemite install#

To install OS X Yosemite ► restart computer ► hold the Option key and select Installation USB drive from the menu. Now wait until your bootable installation flash drive with OS X 10.10 Yosemite is prepared. Hdiutil detach /Volumes/OS\ X\ Install\ ESD Sudo cp -a /Volumes/OS\ X\ Install\ ESD/BaseSystem.dmg /Volumes/OS\ X\ Base\ System Sudo cp -a /Volumes/OS\ X\ Install\ ESD/BaseSystem.chunklist /Volumes/OS\ X\ Base\ System Sudo cp -a /Volumes/OS\ X\ Install\ ESD/Packages /Volumes/OS\ X\ Base\ System/System/Installation/Packages Sudo rm /Volumes/OS\ X\ Base\ System/System/Installation/Packages Sudo asr restore -source /Volumes/OS\ X\ Install\ ESD/BaseSystem.dmg -target /Volumes/Untitled -erase -format HFS+ Sudo hdiutil attach /Applications/Install\ OS\ X\ Yosemite.app/Contents/SharedSupport/InstallESD.dmg Open Terminal and type the following sequence of commands:

#Make a bootable usb os x yosemite download#

Download Install OS X Yosemite.app from App Store, if you do not have it your /Applications folder already. How to create installation USB drive with Terminal commandsįormat your USB flash drive with a GUID Partition Table and named it Untitled. To install OS X Yosemite ► restart computer ► hold the Option key and select Installation USB drive from the menu. Wait a few minutes and your Yosemite installation USB drive will be prepared. In our case "Untitled" is the name of USB flash drive! Replace "Untilled" by name of your flash drive. Sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ Yosemite.app -nointeraction Now open the Terminal and type the following command: Open the Disk Utility and format flash drive with a GUID Partition Table and check it out in the Finder if Install OS X Yosemite.app is in your /Applications folder.

It is the easiest way how to create USB installation flash disk with OS X Yosemite. The createinstallmedia is a command line tool integrated to OS X Yosemite installer. How to create installation USB drive with createinstallmedia tool To boot from flash drive you need to press and hold Option (ALT) Key on keyboard through boot up the Mac. You can of course rename it to whatever you need but you will then need to alter the commands accordingly. If you don't have the installer in Applications folder, you can download it from Mac App Store.Īlso you need flash drive with at least 8 GB capacity, formatted with a GUID Partition Table which is named Untitled by default like is shown on our screenshot. Preparation - get OS X Yosemite installer and USB flash driveįirst you need to have Yosemite installer (Install OS X Yosemite.app in Applications folder).