Apple releases OS X El Capitan 10.11 for everyone; learn how to do a clean installation [atualizado]

Apple just released the OS X El Capitan 10.11 for all! Ma's new desktop operating system is available on the Mac App Store for free and requires a 6.1GB download.

Sorry, app not found.

The final build at 15A284, slightly ahead of the GM version (Golden Master) released three weeks ago, which was 15A282b.

To install El Capitan you need to have at least OS X 10.6.8, 2GB of memory and 8GB of available storage. The system is compatible with the following Macs:

  • iMac (mid 2007 or later)
  • MacBook (aluminum, late 2008, early 2009 or later)
  • MacBook Pro (mid 2007 or later)
  • MacBook Air (Late 2008 or later)
  • Mac mini (early 2009 or later)
  • Mac Pro (early 2008 or later)
  • Xserve (early 2009)

Not all features work on all machines to see if your Mac is compatible with Handoff, AirDrop or Power Nap, for example, see this page from Apple.

Check out everything we published about El Capitan here.

The types of installations

Whenever a new desktop operating system launched by Apple many users are in doubt about how to install it. Is it worth upgrading over the current system? Or is it more of a game to do a clean install, leaving everything zero so that the new OS X can show its full potential without the garbage accumulated for months / years? Both options (conventional and clean installation) have pros and cons.

Of course, the option chosen by the majority is the most comfortable: simple installation over the current one. After all, in addition to being faster and easier, it has the great benefit of keeping everything exactly where it is (documents, photos, videos, music, apps, etc.) and ready to be used as soon as the update is finished. The cons is due to the luggage (garbage) of old versions, especially for those who have been doing this type of installation since, for example, OS X Lion.

The clean installation, on the other hand, gives you a completely new, zeroed system. This often reflects a better performance; on the other hand, you will need more time and patience for her, after all, you will have to transfer all your documents, photos, videos, music, apps, etc. after the installation is completed.

There is no right or wrong, but the option that suits you best. Particularly, I take advantage of these releases from Apple to clean up my computer, transferring everything that really matters and what I think is important to an external HDD, doing a clean installation and copying all files back to the machine after installation.

Little has changed in the past few years regarding the process of updating Apple's desktop operating system. But although we already have articles commenting on this in the past, it never hurts to repeat some tips and teach you how to proceed to make a clean installation, if that is your choice.

Getting ready for installation

  • Make sure your personal files they are all saved in a safe backup, either on an external HDD that can be connected directly to your Mac or on your local / corporate network.
  • Keep your machine in one place with easy internet access.
  • Do not unplug your machine from the wall outlet during the re-installation process. Go that

Creating an OS X installer on an SD card, flash drive or external HDD

This, in my view, is the “quickest” option and you will understand why later.

The first thing you should do is download the new OS X from the Mac App Store. Once the download is complete, the installer will open automatically for you to proceed with the installation. Close it, because we don't want to install the system the conventional way, do we?

There are two options here, one for those who do not like code lines and the other for those who like and are familiar with the Terminal.

Using DiskMaker X

Download DiskMaker X and open the application.

Installing OS X El Capitan 10.11

If by any chance your system does not allow the app to open (message above), just right click on its icon and choose the option “Open” or go to System Preferences Security and General Privacy and allow the app to open.

Installing OS X El Capitan 10.11

When opening the app, select the option Yosemite 10.10.

Installing OS X El Capitan 10.11

Then in “Select an Install file” choose the installer file that you downloaded from El Capitan (it is located in / Applications /).

Installing OS X El Capitan 10.11

click in “An 8 GB USB thumb drive” if you have an SD card / flash drive or “Another kind of disk”, to use a partition on a larger external HDD drive, for example. Choose your disk (or partition) from the list that appears, check if you would like to have the disk (or partition) erased, and then wait for the files to be copied.

Making your own boot disk from Terminal

Connect the SD card, USB stick or external HDD (good to have at least 8GB of space for that), open the Disk Utility (Disk Utility).

Installing OS X El Capitan 10.11

Select it and delete all content. Give a name (example: “ElCapitan”), choose the “OS X Expanded (Chronological Reg.)” Format and the “GUID Partition Map” scheme.

Open the Terminal (located in / Applications / Utilities /) and type the command below:

sudo /Applications/Install OS X El --volume /Volumes/ElCapitan --applicationpath /Applications/Install OS X El --nointeraction

Note that the name in –volume / Volumes /ElCapitan – must be exactly the same as the name you chose when formatting the external SD card / flash drive / HDD. We recommend not using spaces.

When pressing Enter, your administrator password is required. After that, just wait for it to finish (which can take a long time, depending on the media you chose to do this. Finished? Wonderful, now you have an OS X installer El Capitan 10.11 on hand.

Restart your Mac by pressing the key Option. By doing this, you will be able to choose the boot disk you want to use. Select the external SD / pendrive / HDD card.

Now go to Disk Utility, select the Macintosh HD (the place where the new system will be installed) look for the “Delete” button and do it without giving your heart as long as you have really backed up everything, right? For the love of God!

Once this is done, close Disk Utility and choose the option to install OS X El Capitan. Follow the instructions on the screen and be happy.

Installing from OS X Recovery

OS X Recovery is nothing more than an integrated set of utilities. You can use it to restore your Mac from a Time Machine backup, check and repair connected drives using Disk Utility, check the internet connection or get online help using Safari and, in our case, install / reinstall OS X.

Newer Macs also have the ability to start directly from an online version of OS X Recovery. Your machine will use this feature automatically if by chance the recovery system on your Mac's boot disk is not available (if it is available) problem, is replaced or deleted, for example). Internet recovery allows you to boot your Mac directly from Apple servers and gives you almost the same options as OS X Recovery.

The big problem here is the version of OS X that is installed. If you use OS X Recovery to do a clean install, the current version you were running on the computer will be installed; if you use Internet Recovery, it will install the version of OS X that originally came with your computer. That is, in neither of these options will OS X El Capitan be downloaded and installed.

To do this, you will have to log into the Mac App Store, download El Capitan, install over your current system and only then enter OS X Recovery to erase the contents of the machine and do a clean install. In short, you will have to install El Capitan twice to achieve your goal of having a brand new system free of codes and “trash” from the old OS X.

If you choose to do this, do exactly what I mentioned above (download El Capitan from the Mac App Store and install it normally on top of your current OS X). After completing the installation, restart your Mac by holding down the keys Command + R pressed. Open Disk Utility, select your Startup Disk (Macintosh HD) on the left, and then click on the “Erase” tab.

Choose "OS X Expanded (Timeline)" from the "Format" menu, enter a name and click "Delete" again remembering that you need to have a backup of everything! After the disc is erased, exit Disk Utility and select the option to reinstall OS X. From then on, just follow the instructions on the screen.

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And what did you choose which method? Be sure to share it with us and other readers of Your choice is the possible problems you faced.

(via Ars Technica)

Update · 10/01/2015 s 14:03

Installing OS X El Capitan 10.11

DiskMaker X 5 is now available and brings full compatibility with El Capitan, making things even easier for anyone who wants to easily create an OS X installer.