Oct 18, 2014 I recommend making one for Yosemite, on an external hard drive or USB thumb drive, for many of the same reasons I recommend making a bootable Mavericks installer drive: If you want to install. However, if you wish for a complete clean install of OS X’s latest on your Mac, the best way to go about this is to create a bootable USB drive of Yosemite. In this guide we will show you how to do just that. The older method used to make bootable drives of OS X Lion and Mountain Lion installer did not work for OS X Mavericks. OS X Yosemite bootable USB. Step 1: First step is to download OS X Yosemite installation file. The download size is about 5.2 GB and can be downloaded by following the instructions in our how to download OS X Yosemite guide. Step 2: Next step is to download and install DiskMaker X app. Jul 28, 2014 By default, the process of creating a bootable Yosemite USB installer via the method outlined in this article won’t work unless we make a slight change to a.plist file in the Yosemite installer app. Locate the Install OS X 10.10 Developer Preview.app file in your Applications folder, right-click, and choose Show Package Contents. Step 1: Ensure the bootable USB flash drive is plugged into your Mac and restart the computer. As soon as the start-up chime plays, press the Option key (Alt). Step 2: Choose the USB drive on the start-up drive selection screen and hit Enter/Return on the keyboard. Step 3: Wait until the Yosemite installer appears on screen.

It can be quite easy making an update to the OSX 10.10 Yosemite from the Mac App store for one computer, but when it comes to making updates for several Macs, or even doing a fresh install, you might find it really stressful having to make those updates separately. One way to save yourself the hassle is grabbing the Mac update on a USB thumb drive and installing the update using same drive on all your Macs.

It is important to note that running the Yosemite update on your Mac before following the below procedures would erase the installer from your Applications folder. So it is necessary you firstly perform this tutorial using any of the below methods, unless you wish to download a fresh copy of the update again from the app store. Let’s move on to the tutorial.

• Must Read:MAC OS X vs PC Windows – Which Should I Choose / Buy?

Things You’ll Need

• A Mac
• An 8GB USB Flash Drive or larger where you would be burning the OSX Yosemite copy to.
• The OS X 10.10 Yosemite installer from the Mac App Store in your Applications folder
• An Administrator account on your Mac

Method 1: Using DiskMaker X

Using Diskmaker X is the easiest way to burn or make a bootable USB Flash drive. Here is how to go about it.

Yosemite Usb Bootable

1. You need to download the Yosemite installer as stated above from the Mac App Store and DiskMaker X .

2. Insert your 8GB (or larger) flash drive into your MAC. Make sure you must have backed up all important stuff, as you will loose them in this process from the flash drive.

3. Launch DiskMaker X. The app will offer to make installers for OS X 10.8, 10.9, and 10.10. Since we wish to install Yosemite, you will have to select 10.10 and let DiskMaker X handle the rest. DiskMaker X would find the Yosemite Installer and have it installed on your thumb drive. If it doesn’t find it, you can click on “Select an Install File” so you can easily navigate to the installer.

After the whole process must have been completed, you can now use this flash drive to install OSX Yosemite to any MAC. It’s actually that simple.

Method 2: Using Terminal

If for some reasons you couldn’t get DiskMaker X working for you, you might want to follow this geeky steps using Terminal to achieve same result.

1. Firstly Download the Yosemite installer.

2. Insert your 8GB (or larger) flash drive (make sure you assign a name to it – I’ll be using Untitled as my drive name for this tutorial). Make sure you format your USB flash drive in OS X Extended (Journaled) using Disk Utility.

3. Launch the Terminal application on your MAC. Then type (or copy and paste) the following command into your Terminal window. Make sure you replace Untitled with the name of your drive. Then hit Enter on your keyboard.

Yosemite Usb Installer

sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install OS X Yosemite.app --nointeraction

4. Now you would be prompted to type in your password, then press Enter again.

Allow terminal to complete the process (this could take close to half an hour). You can take out your USB Flash when you get the Done prompt. After it’s done, you should be able to use your USB Flash drive as a bootable disk to install OSX 10.10 Yosemite on any MAC computer.

Note: The Bootable USB Flash drive would not only be used to install Yosemite on Mac computers, but would also have utilities like Disk Utility and Time Machine recovery.

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Make Yosemite Install Usb

To make use of this thumb drive to install the OSX 10.10 update, you can change the default Startup Disk in System Preferences or by holding down the Option key at boot and selecting the drive.

Yosemite Install Usb Boot

I hope you find this useful.