Install Os El Capitan From Usb

 

Using New Disk Utility Clean Install OS X El Capitan from USB Boot Disk. How To Clean Install OS X El Capitan Using Disk Utility. Clean Install OS X El Capit.

Capitan
  • My Patreon Link: USB installers for older versions of Mac OS X can be tricky, so I decided to put together a more deta.
  • How to Install macOS on Mac from USB Drive (Normal Way) If the target Mac computer already had a macOS or OS X on it, then installing macOS from USB is straightforward and this is called the normal way. Step 1: Insert the macOS bootable USB drive on a USB port of Mac computer. Step 2: Shut down the Mac and wait for 1-2 minutes.
  • Macbook Pro 13' 2015 with OS X Yosemite on board. I've been trying to install OS X El Capitan, but always get the following message: 'This copy of the Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading.' By the way this is not a date time issue, date is correct on my computer.
  1. 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
  2. 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.

Install os x el capitan from usb stick
  1. Physically install SSD into the target laptop.
  2. Insert the El Capitan USB stick into the target laptop and power up. (This might take a while.)
  3. When the menu finally turns up, choose Disk Utility and format the SSD as Mac OS Extended (Journaled) with a unique name.
  4. Once complete, exit from Disk Utility and return the main menu.
  5. Choose to Install OS X on the formatted SSD.
  6. Follow the prompts until El Capitan is installed.

Clean Install Mac Os X El Capitan From Usb

Here’s link to a video on how to physically install the SSD as well as run the software installation.

Reinstall Mac Os El Capitan

If you’d rather install Yosemite on the SSD then follow the How to Install Yosemite on a New SSD guide.