- 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:
El Capitan downloaded but started to launch automatically, but my (early 2008) iMac froze. Left overnight – no change – so restarted and followed instructions for Diskmaker, but first time through Diskmaker didn’t like the new external SSD (soon to be my new internal HDD replacement). Second time through all ok. Now on the Samsung. El Capitan clean install on new SSD Hi I searched clean install and found some useful information, but the threads are archived and I had a few more questions. I purchased an OWC Data Doubler for my Late 2011 15' MacBookPro and I would like to do a clean install of El Capitan onto the new SSD drive when it comes out at the end of the month. If you install an SSD on a Mac, it's important to make sure that the TRIM command is running on the machine. Screenshot by Dong Ngo If you have replaced the hard drive on your Mac with an SSD. I was preparing a new SSD (Samsung EVO) by following the appropriate instructions for formatting and partition followed by installation of OS El capitan as is running currently. I then used apple’s software to copy the disk from the old HD to the new SSD and once completed on booting it it is running OSX 10.6.8 and I’ve lost data for approx.
El Capitan Install Dvd
where MyVolume is the name of your USB stick. Change this to match the name of your USB stick.
Install El Capitan On External Ssd
- 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.
El Capitan Install Usb
If you’d rather install Yosemite on the SSD then follow the How to Install Yosemite on a New SSD guide.