How make a boot disk for Mac os X

I remember once upon a time I broken my Mac pro by trying some new software, and when I took my macbook to the retail store, they said that it would took 40 dollar to help you re-install the system. I got angry, and I am writing this blog to help people who want to re-install the mac os.

In fact, there are a lot way to re-install the mac os, for instance, using codes that written by yourself, using third party software and so on. The way that I am introducing is the simplest and the safest way that I ever know, it is easy and no Compatibility issue. 

First

OK, The first step is preparation, you need the things that list below.

1. A empty USB Drive, make sure you back up the files, the process will erase the USB Drive

2. An official file of OS X Yosemite(or OS X Maverick, I have not try other vision), you can find it on the AppStore.

3. If you download the file for the Mac AppStore, it usually begin install by it self, you need to stop that.

4. If you find the file from  somewhere else, you need to move the file to the Application folder.

Second

Plugin your USB Drive, and go to [Application] -> [Utilities] and find the Disk Utilities.

1.Find your USB Drive in the left column, and click on it.

2.Find the partition button in the top column.

3.Then choose 1 partition on the partition layout.

4.Write whatever name you want to call you USB Drive.

5.Choose Mac OS extended (Journaled) for the format.

6.Choose GUID partition table in the option.

7.Click on Apply to format your Drive.

Third

open the terminal to make your boot disk.

you need to confirm the the “install OS X Yosemite” is on the “application” folder.

Go to [Application] -> [Utilities] and find the terminal 

copy the following code

     sudo /Applications/ Install OS X Yosemite.app         

       /Contents/Resources/ createinstallmedia   

       --volume /Volumes/  "the name of your USB Drive" 

       --applicationpath  Applications/Install OS X Yosemite.app

       --nointeraction

4. paste it in the terminal, and press enter

5. after you press the enter, it will ask you to put you administrator password. 

6. and then, you should seeing this:

Erasing Disk: 0%... 10%... 20%... 30%...100%...

Copying installer files to disk...

Copy complete.

Making disk bootable...

Copying boot files...

Copy complete.

Done.


Then, it is all done, if you restart the computer and keep pressing the "option" button, you should see your boot disk.