Final how to create a bootable os x 11.1

Instruction Guide

1. David Sahagian
Priscilla Sneff
Instruction Set
April 12, 2016

How to Create a Boot-able OS X 10.11 USB Drive

The modern MacBook Pro no longer comes equipped with a CD drive and the computer’s
operating system due to malfunctions can be difficult for some users. In most startup issues
the hard drive remains fine and the user’s data is merely not accessible because the virtual
startup disk cannot be found. If one does not wish to bring their computer in to be serviced or
perform another type of Online reinstall that can take hours, making a boot-able USB drive by
install the operating system directly is useful. Formatting a startup USB drive takes three
operations to complete. The USB drive acts as conventional CD but is plugged into the USB
port and booted upon startup. Lastly, follow these instructions carefully and do not rush.

WARNING: Back-Up all Important Data to another computer or external hard drive in the
event of an error. This will prevent the loss of your data.

--Necessary Items--
You will need all of the following items in order to properly configure the USB drive successfully
and most are available right on your MacBook Pro
 Empty USB Drive (8 GB Minimum Capacity)
 MacBook Pro
 Installed Updates from the Apple App Store
 Downloaded Setup of OS X 11.1
 Basic Knowledge of Navigating Amongst Apps

I. Downloading OS X 10.11
This download should be done first as it will take a few hours depending on your internet
connection and can be installed in the background as other parts of the procedure are
executed.
Warning: Do not do anything to OS X if it installs before you
finish these Instructions.
1. Open the App Store on your MacBook Pro
a. It is typically located in your dock or press Command
+Space at the same time and search App Store in the
Search Bar that pops up.
2. If you are not already logged in you will need to log in to
your Apple ID when prompted
3. Search “OS X El Capitan" in the App Store Search Menu
4. Click Download and being waiting for it to complete
NOTE: The Icon and download button will look like Figure 1 ⇒






Figure 1

2. II. Configuring the USB Drive
This section of instructions requires the Disk Utility Application to format the USB drive as
Apple compatible. Also, the use of a command in the Terminal Application is necessary. Both
of these applications are located under applications folder in the Utilities Folder. However, you
may use Spotlight by pressing Command+Space at the same time and search them just as
easily.
1. Connect the USB into your Mac
2. Open the Disk Utility App through Spotlight Search or the Utilities folder in Applications
a. See Figure 2 For Application Images

Figure 2




3. Navigate to the USB Drive from the Side Menu
a. The USB name will be the brand of USB
purchased and be under “External” section.

Note: See the Highlighted Selection in Figure 3) ⇒





4. Click Erase on top of the Disk Utility Menu
a. Under “Name” Call it “OSX 2” for simplicity.
b. Under Format select “OS X Extended (Journaled)”
c. Under Scheme select “GUID Partition Map”
d. See Figure 4
5. Press Erase with this format in Figure 4 ⇒
Figure 3















Figure 4

3. Figure 5
III. Finalizing the USB Drive Using Terminal
During this part of the installation follow these instructors exactly and do not type anything into
terminal other than instructed. Terminal can control anything from User Files to Core System
files and should used carefully. OS X must be finished installing to proceed. Terminal will
remove the “Install OS X” system files from your Mac to the USB.

Note: If OS X has downloaded and is open close the Application now.

1. Open Terminal from Spotlight or the same folder as Disk Utility.
2. PASTE The following Command into the terminal window and press Enter:
sudo /Applications/Install\ OS\ X\ EL\ Capitan.app/Contents/Resources/createinstallmedia --volume
/Volume/OSX 2 --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app –nointeraction
Warning Under the “Name of Your USB Drive," It Must Match your entry exactly and do
not use quotes.











Note: The text before the command will vary from user to user on the computer.

3. You must type in your user password once the command has been entered
4. Allow 45 minutes as Install OS X un-embedded from your Hard Drive and installed
onto the USB completely.
a. Do not close out Terminal or remove the USB; let this run in the background.

Successful Installation Verification
This process involves shutting down your Mac completely and restarting using a startup
command. It is fairly straightforward and if successful you have an portable OSX El Capitan USB
Drive to Use to Salvage files, reinstall the operating System, or run OS X El Capitan on a USB if
you prefer not to personally upgrade. If nothing appears you have to resume from Step II.

1. Shut Down your MacBook Pro with the USB connected
2. Press the Power Button and immediately hold down the Option (Alt) key on the
keyboard during startup.
3. A screen will appear with a list of startup disks including the names USB you just
configured
4. Click your Hard Drive to startup your MacBook normally or select the USB drive to boot
into a fresh version of OS X that will allow you to set up your computer as if it was
brand new.

4. *Additional Information

Booting into the new empty startup drive will have no effect on your hard drive or its files,
it is merely a blank operating system for you to use as you please. Use it for a mobile Mac
setup on other Macs, or to restore a damaged startup disk on your current hard drive.
Keeping the USB Drive untouched and not creating any accounts assures that a fresh
operating is always available for quick emergency laptop use in times of internal startup
disk trouble.

For further reading on restoring hard drives visit Apple’s Support Page.

Below is a link to further explore and understands the capabilities of Disk Utility.

http://www.macworld.com/article/2987201/operating-systems/hands-on-with-disk-utility-
in-el-capitan-tool-for-storage-devices-gets-a-facelift.html