The reload of MAC computer system

First of all, why do I think of the system of reloading Mac??? In fact, a very simple reason, when I write a project, after the completion of the function code, in the emulator run is completely no problem, but on the real machine is not, we all know that after Xcode 7.3, the real machine debugging has become very simple, As long as you have an ID can be the real machine debugging, and no longer as cumbersome as before, here is about the real machine debugging no longer say, here is not the point.

Back to the point, in my real machine test, the project just a run will be collapsed, that is, the project start page just show up, will be collapsed, the reason for the collapse is that there is a dynamic library is not loaded ... It makes me very dazed ... How can there be such a mistake ... It's good on the simulator.

Later in the degree Niang after a toss. Also tried the online aunt said the method ... But I still can't do it here. Some of the aunt really solved some problems. But my problem is not solved. This is even more dazed. I'm still waiting for the real machine to be debugged ... No way.. Because the project to catch up with the progress. I've been working with my colleague's Mac for the next few days to debug the real machine ... This is not a long time ah. And then took a day off to do it.

First of all, I can be sure that the code itself is no problem in the first place. Because my code on the colleague's computer can run Ah ...

Then I suspect that there was a problem with Xcode. Decisive uninstall Reinstall the side ... After the real machine operation or not the same error is still. This is a little embarrassing.

After confirming that it is not code or Xcode, I suspect the system is out of the question. I don't know exactly what the problem is. But I knew it. haha haha

Anyway pound this problem has to be solved

Then I started the road of reloading the system .... In fact, the reload of Mac system I think it is relatively simple ... But there were all kinds of pits, and basically all the pits were met.

The above is the reason to re-install the system ... Is it a little cumbersome?

First of all, there are two ways to reload Mac systems. One is the online installation (this will be relatively slow, not recommended, I tried, a full load of more than 30 hours has not been installed, of course, this is my personal opinion),

The second is that I want to recommend the method of the USB stick reload system crap, don't say much.

Before you re-install your Mac system Ah, you have to prepare the tool has (a normal use of the Mac, a more than 8G u disk, I use a 16G USB stick, yes, also need to have network)

(1) Open the store on a Mac that can be used normally, search the image file of the system, direct download (here I met a pit, before the download, in order to proceed after the reload, you should set your normal use time to your time zone, Open Mac Settings Date there is an American time zone, the Asia-Pacific time zone, there is a time zone, forget, such as you in China, you put the time into the Asia-Pacific region, and then confirm the time and place is not a match, if set up, directly to download the file is good, I was downloaded one hours, 6G more installation package)

(2) After downloading, the installation package will automatically appear in your application, do not open it and leave it. Then plug in your USB stick, it's best to back up the important things in your USB stick.

(3) After you change the name of your USB stick to Myvolume, this name will be used next

(4) Open your terminal and paste the following code directly

Sudo/applications/install\ os\ x\ el\ capitan.app/contents/resources/createinstallmedia--volume/volumes/myvolume-- Applicationpath/applications/install\ os\ x\ el\ Capitan.app

(5) After entering the Administrator account password, click on Y.
(6) After you see, the terminal behind the prompt done indicates the completion of the production. (If an error occurs, it is likely that your USB drive is faulty)

(7) Here, the U disk is ready, and the next step is to reload it.

How to install the system using the U-disk installation (reinstall requires erase, remember to back up your data) 1. After booting, press the option directly, select your U-disk to start; 2. When the page appears "OS x Utility" (before which the Select language interface may appear), select the Disk utility, Click Continue; 3. Select the total disk, usually in the list on the left side of the disk utility in the first item (the first item is your Apple's total disk). With this option selected, click on the "Erase" tab on the right, and in "format" select Mac OS Extension (journaled), partition map scheme GUID, name without tube. 4. Confirm the above information, click Erase directly, note that the operation is to format the entire selected disk, data loss including the system will also be lost. 5, erase the successful Exit disk utility, click Reinstall, agree to the terms, choose an unnamed disk (just erase the disk) to install the system, you need to wait a while to load. Here, basically, the MAC system has been re-installed, basically plain text, but if you just do what I say, there's basically nothing wrong with that. If you have any questions, please give me a comment. Haha

The reload of MAC computer system