Want to learn how to create a bootable USB installer for OS X Yosemite?. Here is the complete step by step guide which you can follow on your MAC create the bootable USB disc. We all know that Yosemite OS X is the latest operating system form Apple, which comes with lots of new features and improvement. If you are interested in new OS and want to try it then sign up for the OS X Beta Program here, which will allow them to test the new OS, if selected.
- Ios Bootable Usb Drive
- Yosemite Bootable Usb On Windows
- Os X Yosemite Usb Installer
- Make Yosemite Bootable Usb
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Once you have the installation app for Yosemite (Install OS X 10.10 Developer Preview), don’t install it directly, other wise you will lose the file and can’t make the USB disc. To get started all you nee a *GB or above USB drive, Apple computer with Mac App Store (10.6.8+) and OS X Yosemite installer.
Create OS X Yosemite Bootable USB Drive
Step 1. Insert the USB drive or Disc on youir MAC and run the Disk Utility app from the Applications > Utilities folder.
Step 2. Now in the app select the USB drive and Selct the Partition Tab.
Step 3. Under Partition Layout, select 1 Partition from the drop-down menu. And enter the Partition information Name: ”yosemite”, Format: “Mac OS Extended (Journaled)”.
Step 4. Click the Options... button and Select GUID Partition Table. After that hit the “Ok” button then “Partition” button.
Step 5. Now the partition process will start and this will take some time to format and making USB drive as a 1 partition
Now the USB part is over and lets move to the OS X Yosemite installer package.
Step 6. Go to Applications again and find the Install OS X 10.10 Developer Preview app that you downloaded.
Step 7. Right-click the installer and select Show Package Contents from the context menu. See the Screenshot below:-
Step 8. Now navigate to Contents -> SharedSupport and open InstallESD.dmg
Step 9. This will start the verify process on your MAC. Wait for some time…….
Step 10. Once the verify process is done you will see the Package Folder.
Step 11. Don’t do anything with this Packages folder just yet. First, we need to unhide the files located in this newly mounted OS X Install ESD image.
Step 12. Launch Terminal.app to enter a command to unhide the file and folder on your MAC.
Step 13. Enter the below mention two commands one by one:-
defaults write com.apple.finder AppleShowAllFiles TRUE
killall Finder
Step 14. Now you will see three more files next to the Package folder (Step 10)
Step 15. Switch back to Disk Utility.app to select the partition name created in step 3.
Step 16. Now drag the partition from the device list to the Destination box. Also, drag the BaseSystem.dmg to the Source path
Hit the Restore button.
Step 17. Now a new popup screen appears. From here click on Erase to start the restore process, then enter in your admin password and hit OK to proceed.
Step 18. Once the restore process is done, you will see a new window son your screen. Like the screen below:-
Step 19. Here, open the “System” > “Installation” folders and move the Packages file to trash.
Step 20. Now copy the Packages folder from Step 10 and paste it into the Installation folder that you just opened in previous step.
Step 21. Now Hide the system files again using this command on terminal window
defaults write com.apple.finder AppleShowAllFiles NO
That’s it!. To perform a clean install on your MAC, simply insert the USB drive that you created, power on the computer, and hold down the [option] key to access the boot selection menu. From there, select the USB drive partition, and follow the prompts to install OSX 10.10 on your Mac.
The all now OS X 10.10 Yosemite is out now and its a free upgrade like Mavericks. It’s very simple task to upgrade an exsisting os to Yosemite with “App Store”. It’s actualy one click away from Yosemite. But if you need to install a fresh copy of Yosemite into your macbook, you will need either a DVD installer or a Bootable Yosemite installer.
Why a fresh install
Many people says slow issues after upgrading to old version Mavericks. And after upgrading some of your already installed apps wont work. Keeping a USB installer drive is a good idea to use it for recovery or troubleshooting purposes. And if you have one bootable installer, you can use it with your other Macs to install the Yosemite. It really really helps you by avoiding downloading the Yosemite installer file in each Mac.
What to backup
Before you start installing Yosemite, you should backup all the important data to an external resource. Installing the OS X is a kind of formatting your Mac. The process will wipe out the entire Hard disk. And more thing, you done need to backup or note a product key like windows product key in your mac. Mac doesn’t ask any product key while installing. Your Apple hardware is the product key for all your OS X installations.
OS X Yosemite hardware requirements
You should check wether your current hardware is compatible with Yosemite. Minimum ram required for Yosemite is 2GB. But 4 GB or higher is recommended for best performance. A hard disk space of 40GB is recommended for installing Yosemite with ease. Please note your entire HDD will wipe out while installing the Yosemite.
- Macbook air late 2008 or later
- Macbook Pro mid 2007 or later
- Mac mini early 2009 or later
- iMac mid 2007 or later
- Mac Pro 9 early 2008 or later
Ios Bootable Usb Drive
Making a USB installer is an easiest task if you already downloaded the Yosemite installer “.App” file. For downloading the file you should go to the “App Store” and then select the “Updates” tab on the top right position. Click on the “free upgrade” option for downloading the Yosemite installer file. The app file size will be 5.16GB as i can see here. Now the installer file is downloading to the /Applications directory.
You need a 8GB or higher capacity USB pen drive which formatted as “Mac OS Extended (journaled)”
Prevent auto deleting the downloaded file
After completing the download you should copy the downloaded file from /Applications directory to somewhere (i.e. to desktop). Because the downloaded file will automatically delete after starting the automatic upgrade process. Make sure you copied to a different directory. The downloaded file name and extension should look like Install OS X Yosemite.app. Now you are not far from create bootable usb of yosemite.
Create bootable usb of yosemite
Now all set for create bootable usb of yosemite. Here in my case, i copied the Yosemite installer file “Install OS X Yosemite.app” to my “Desktop”. And my 16gb USB drive name is “Sandisk” and its plugged to my Mac. Now open the terminal and execute one command to make the stuff.
NB: Make sure you give a different name for your USB drive than the your main HDD of your Mac.
Execute the below command to create bootable usb of yosemite. Done forget to change the directory names with yours.
Yosemite Bootable Usb On Windows
sudo /Users/Sreekanth/Desktop/Install OS X Yosemite.app/Contents/Resources/createinstallmedia –volume /Volumes/Sandisk –applicationpath /Users/Sreekanth/Desktop/Install OS X Yosemite.app –nointeraction
Os X Yosemite Usb Installer
After 10 to 20 minutes your all new OS X Yosemite bootable USB installer will be ready.
Make Yosemite Bootable Usb
For more about OS X Yosemite visit Apple