Download El Capitan installation from the App store. It might complain that you already have it installed but download it anyway. It will be downloaded to /Applications and be named Install OS X El Capitan.app; Create a bootable image from the El Capitan installer on a USB stick larger than 6GB. In a terminal run. Create Bootable USB for Mac OS X El Capitan with TransMac. A new pop up box will appear, click on the three-dots, and then select the macOS X El Capitan.DMG file from Windows. Then click on OK. Choose Mac OSX El Capitan DMG file. Since the file is huge so it will take quite time to complete. It may take about 20 to 30 mins or more. Boot from the USB Drive. Restart your computer and boot from the USB drive (Press Esc/F8/Del to access the boot selection menu). Use the arrow keys to select Boot OS X Install from Install OS X El Capitan (It should be selected by default). Press the spacebar and select Boot Mac OS X in verbose mode.
Download: OS X El Capitan This downloads as a disk image named InstallMacOSX.dmg. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. Oct 19, 2015 All you need to perform the installation is a spare 8GB or larger USB thumb drive, an external drive to back up all your data to (if you have any), and a copy of OS X 10.11 El Capitan. OS X 10.11 El Capitan can be downloaded from the Mac App Store.
I accepted a Mid 2012 macbook pro from my dad, which hasn't been used for years (in fact since the year he bought it). So the first thing I did was upgrade the system straight to El Capitan, but then I found the system a bit slow so I am planning to install a new SSD and a new and clean OS for better experience.
So I started preparing all kinds of things, one of which is a USB containing the Install El Capitan app.I did this by downloading El Capitan from appstore and creating a usb media through the following command lines. The USB drive was erased and formatted before operation.
sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/OSX --applicationpath /Applications/Install OS X El Capitan.app --nointeraction
Download From Usb
This should make the USB a install media. So I restarted, pressed option key and saw the original Macintosh HD and the USB, everything was going fine until now. Then I selected the USB and it just stuck at the loading screen like this.
I have been stuck here for hours. In fact I haven't installed the SSD yet. I'm just trying to see if the USB install media worked fine, but obviously it didn't. I know I could use a software to clone my system from HDD to the new SSD, that would be far more simpler, but I really want to install a new OS. Does anyone have any ideas about what the problem is or what should I do next? Thanks a lot.
MacBook Pro, OS X El Capitan (10.11.4)
Posted on May 18, 2016 12:56 AM
- Download El Capitan installation from the App store. It might complain that you already have it installed but download it anyway. It will be downloaded to /Applications and be named Install OS X El Capitan.app
- Create a bootable image from the El Capitan installer on a USB stick larger than 6GB. In a terminal run:
where MyVolume is the name of your USB stick. Change this to match the name of your USB stick.
How To Fresh Install El Capitan From Usb
- Physically install SSD into the target laptop.
- Insert the El Capitan USB stick into the target laptop and power up. (This might take a while.)
- When the menu finally turns up, choose Disk Utility and format the SSD as Mac OS Extended (Journaled) with a unique name.
- Once complete, exit from Disk Utility and return the main menu.
- Choose to Install OS X on the formatted SSD.
- Follow the prompts until El Capitan is installed.
Here’s link to a video on how to physically install the SSD as well as run the software installation.
Install Os X El Capitan Via Usb
If you’d rather install Yosemite on the SSD then follow the How to Install Yosemite on a New SSD guide.