I am using Macbook Pro Mid 2012 13' with 128GB SSD. The latest installed version of OS X was El Capitan which crashed during a Sierra upgrade.
Os X El Capitan Install
Internet recovery mode worked somehow to land me to install download and install a new OS but it's Mountain Lion, which came installed when I bought the Macbook few years back However, it's rejecting to install on current SSD drive as shown in pic.
My Mac has been periodically ( every 20 minutes) losing its internet connection (wifi was still connected, but somehow without internet access) ever since I upgraded to El Capitan. It seems like the Safe Mode reboot did the trick (after also doing all the steps up to that). How to Perform a Clean Install of OS X El Capitan. OS X El Capitan (OS X 10.11) offers two installation methods. This guide focuses on the 'clean install' method. When you install El Capitan on your current startup drive with the clean install method, you erase everything on the drive. That includes OS X, your user data, and personal files. Post Installation is Easier: Just like windows you have to install drivers to make macOS perfect, which is pretty hard for beginners but Sierra Installer automatically do this for you by installing most drivers automatically, and Sierra Installer also installs the Bootloader for you, but you may have to install additional drivers manually in. Sep 30, 2015 The new OS X El Capitan features a new Split View, features in Safari, Mail, Notes, Maps, and Photos, and more. To get your hands on all this new stuff, you have to install the operating system on.
El Capitan Reinstall
I have another 320GB HDD, so is this the only way to reinstall? First I do a fresh install of Lion on the external HDD? What I should I do?
What is a step by step procedure as all I want to do is run OSX on SSD drive but keeping all my older data. I can not afford to wipe it.
Install El Capitan Without Internet Speed
However, I did back up some of its backup onto my PC. If I install Lion the HDD can I then download Sierra and create an install disk to update/fix/install corrupted OS X on SSD?