- Mac Os El Capitan Wikipedia
- How To Install Mac Os El Capitan On My Pc
- Install Mac Os El Capitan Virtualbox
Dec 22, 2020 Installing Mac OS X El Capitan. The installation process of mac os el Capitan includes two methods. The first method is termed as an upgrade install, also known as the default method. The second method is known as a clean install. Upgrade install-Follow to below steps-Visit the Mac App Store. Locate the OS X El Capitan Page. Click the Download. It installs an app named Install Version Name. Open that app from your Applications folder to begin installing the operating system. MacOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion; OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard.
Installing Homebrew on Mac OS X prior to El Capitan (that is Yosemite, Mavericks and others) used to be a breeze. But with a new change in OS X El Capitan called SIP - installing Homebrew has become a bit complicated.
You need not worry, I have got you covered.
There are two parts to this tutorial. If you want to uninstall or delete Homebrew first and then re-install it on El Capitan then follow Part 2 of this tutorial below. However, if you are doing a fresh installation of El Capitan then follow the steps outlined in Part 1 of this tutorial.
Happy Brewing!
Part 1: How to install fresh copy of Homebrew in OS X El Capitan
Step 1 - Install XCode by downloading it from here. This is needed for installing the XCode command line tools which in turn is needed by Homebrew. You might skip this step if you already have XCode installed.
Quick Note - If you already have XCode installed then go to STep 2. Also, You can skip this step and jump to Step 3 instead and see if the Homebrew installer complains about XCode command line tools. If it does, then come back to this step and continue.
Step 2 - Install Command Line tools by running the following command in terminal:
Step 3 - Now, you need to get a fresh copy of Homebrew and then run the install script. You can perform both these tasks using this one command in the terminal app:
If it complains about permission issues, then you have to fix it before you can continue. This is an additional thing that you need to do in Mac OS X El Capitan because Apple introduced this new feature called System Integrity Protector. Here is a guide to how you can fix this permission issue with Homebrew on OS X El Capitan.
After you have fixed the permission issue, re-run the command above in the terminal to begin the Homebrew installation process.
Step 4 - Run the Brew Doctor utility to check for issues or warnings in the terminal
brew doctor
If it shows errors, then you need to fix them before you can continue. You might, however, skip any warnings that the doctor tool shows.
All the apps and libraries that you install using Homebrew are located in this folder: /usr/local/Cellar
After Homebrew is installed, you can use some of the following commands to perform different tasks with it:
- You can search for an application using: brew search
- You can install a new application using: brew install <application-name>
- In order to list all apps installed by Homebrew, you can use: brew list
- For removing an app installed via Homebrew: brew remove <application-name>
- Homebrew can be updated using: brew update
- man brew will show other switches and command options for Homebrew.
Part 2: How to uninstall and re-install Homebrew in OS X El Capitan
Step 1 - First you will have to delete the Cellar folder of Homebrew that is usually available in the /usr/local folder. To do this, you need to run the following command in the terminal:
rm -rf /usr/local/Cellar /usr/local/.git && brew cleanup
Please note - If the above command throws a permissions error then you need to read this article to fix the Homebrew permissions in OS X El Capitan.
Step 2 - Install Xcode & XCode command line tools. This is an optional step but for many users, installing the tools mentioned in this step is mandatory. So in order to check, if you have to really perform this step, what you can do is quickly skip to Step 3 and run the command mentioned on that step - if you see success then you can safely skip this step, else continue here:
First download and install Xcode from this link - https://itunes.apple.com/au/app/xcode/id497799835?mt=12
Next, install Xcode command line tools by running the following command in your terminal:
If it complains about permissions, then use sudo and run the same command again.
Step 3 - Now that you have a cleaned-up Brew data folder, you need to fetch a fresh copy of Homebrew and start the installation process by running this command in the terminal:
You might be prompted for your root password and when that happens, enter the password and continue. You can find some sample output towards the end of this post.
Step 4 - After the installation completes, you should run the doctor utility on brew to see if there were any issues with the Homebrew installation. This can be done by running the following command:
brew doctor
If it returns any error, try fixing them. If you see just warnings then you could ignore them.
At this point you have succesfully installed Homebrew on El Capitan and you can use the commands mentioned above to perform various operations.
Some sample Outputs:
?>Upgrading to El Capitan
You can upgrade to El Capitan from Lion or directly from Snow Leopard. El Capitan can be downloaded from the Mac App Store for FREE.
Upgrading to El Capitan
To upgrade to El Capitan you must have Snow Leopard 10.6.8 or Lion installed. Download El Capitan from the App Store. Sign in using your Apple ID. El Capitan is free. The file is quite large, over 5 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
Macs that can be upgraded to OS X El Capitan
1. iMac (Mid 2007 or newer) - Model Identifier 7,1 or later
2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later
3. MacBook Pro (Mid/Late 2007 or newer) - Model Identifier 3,1 or later
4. MacBook Air (Late 2008 or newer) - Model Identifier 2,1 or later
5. Mac mini (Early 2009 or newer) - Model Identifier 3,1 or later
6. Mac Pro (Early 2008 or newer) - Model Identifier 3,1 or later
7. Xserve (Early 2009) - Model Identifier 3,1 or later
To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
Are my applications compatible?
See App Compatibility Table - RoaringApps
Note that upgrading to El Capitan is quite possible from Snow Leopard.l Please be sure your model is included in the above and that your computer meets the installation requirements.
If you need to reinstall El Capitan then try:
Reinstall El Capitan Without Erasing the Drive
Mac Os El Capitan Wikipedia
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility and press the Continue button. After Disk Utility loads select the indented Macintosh HD entry from the the left side list. Click on the First Aid button in the toolbar. Wait until the operation completes, then quit Disk Utility and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless and more reliable.
If you cannot do the above, then you need to reinstall Snow Leopard and try again:
Reinstall OS X without erasing the drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say 'Verified' then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is 'Verified' then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
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