How To Create A Bootable OS X Mavericks USB Install Drive

At the WWDC 2013 (World Wide Developers Conference) Apple introduced a lot of great things and beside these features, there was Apple's new OS X Mavericks which came with a tons of great features we've already reviewed with you...

And right now I am going to show you an easy tip on how to make a bootable OS X mavericks usb install drive, so that you can install OS X Mavericks on your computer anytime and anywhere...

Before beginning, make sure the Mac you want to install Mavericks on meets the system requirements for 10.9. You will need OS X Mavericks (obviously), and an 8GB (or larger) USB drive that you don’t mind formatting, we’re using a USB thumb drive for the purpose of this walkthrough but an external hard drive should work as well.

How To Create A Bootable OS X Mavericks USB install drive: 

• First you will have to download the first version of OS X Mavericks and of course you will need to be a developer. 
• Now connect a USB flash memory to your Mac and launch Disk Utility.
• Choose the USB drive from the left side menu, click the “Partition” tab, select “1 Partition” from the drop down menu, and then click the “Options” button to select “GUID” as the partition type, click “OK” then click “Apply”
• Now you will have to launch Terminal in order to show hidden files and then relaunch the Finder, just use this default command strong

defaults write com.apple.Finder AppleShowAllFiles TRUE;\killall Finder;\say Files Revealed

Image via OSXDaily

• After doing this step, go to /Application/folder and locate "Install OS X 10.9 for developers".
• Right-click and choose “Show Package Contents”, then open “Contents” and open “SharedSupport” (Just as shown in the picture above).
• Now double click to mount "InstallESD.dmg" 
• Open the mounted ‘OS X Install ESD’ image, and right-click “BaseSystem.dmg” choosing “Open” to mount the image (BaseSystem.dmg is invisible by default, thus why invisible files must be made visible in the earlier step).
• Go back to dis utility and select "BaseSystem.dmg"then from the sidebar click on Restore tab
• With “Source” set to “BaseSystem.dmg”, set “Destination” to the USB drive by dragging the USB drive into the box, then click “Restore” to begin – confirm that contents of the drive will be erased

• After finishing the above step, go to Finder and navigate within the newly created USB drive to System > Installation > and delete the file (alias) located here named “Packages” – keep this window open
• Go back to the ‘OS X Install ESD’ mounted drive, and drag & drop the “Packages” folder into the /System/Installation/ directory you just deleted the Packages alias from, let this large folder copy

Once that Packages folder is finished copying to the drive, the USB drive is now ready to be booted from which it can install OS X Mavericks from.

Booting from OS X Mavericks Install Drive

• With the USB drive attached, reboot the Mac and hold down the Option key
• Select the orange drive, labeled “OS X Base System 1″ from the boot menu
• Proceed with the installation as usual

Big thanks for OSXdaily for such great pictures and tip :)...

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