Successfully install El Capitan (Drive formatted as GUID, OSX Extended, same as USB), Successfully boot into installed system from USB. Install Post Installation Tools and Clover Legacy package (Unit is not UEFI compatible) upon reboot unit doesn't boot from internal drive and when i boot from USB internal El Capitan install no longer shows in.
How to Install Mac OS X El Capitan, create a Boot USB Flash Drive. Installing MacOS X from a bootable Pen Drive and Maintain all your Data.
- How to Create a OS X El Capitan Boot Installer USB Flash Drive.
- Finally, after about 25 more minutes, OS X El Capitan should be successfully installed on the target drive. Boot into El Capitan via the USB Device. After the second reboot, boot from the USB device once again, but this time, select Boot OS X from El Capitan, and select verbose mode. Press Enter and cross your fingers again. If all goes well.
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How to Install OS X El Capitan Bootable USB Flash Drive
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First Download Mac OS X, go to apple.com click on Mac tab, and enter on OS X El Capitan. Now click on upgrade now, the App Store application should open, if not, click to view and download from the Mac App Store.
After download OS X from Apple, prepare USB flash drive with eight or more gigs.
Open Disk Utility, select the USB Flash drive, and click on the erase tab. On format type, select OS X journaled and give it a name OS X_Elcapitan.
Click to erase and wait until finished preparing the bootable drive. Next, when you’re done to erasing the pen drive, close Disk Utility and open terminal.
Now to create a bootable drive, go to the description of this video and paste this
instructions on terminal and hit enter.
Copy and paste this code:
sudo /Applications/Install OS X Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/osxelcapitan --applicationpath /Applications/Install OS X Mavericks.app --nointeraction
Depending on your machine this can take 10 to 30 minutes, but wait, and do not close terminal.
Next, you are ready to install Mac OS X, go to finder enter on the bootable drive, and open to install OS X application.
If you have a backup or a clone of your Mac, Proceed and continue, if not
you can watch this videoon how to make a backupl or clone on your Mac.
Now you can continue from here, or if you prefer restart for a clean install. Restart your Mac. On start up, press the Option key and select the bootable drive with the OS X.
Now, click Continue agree with terms and conditions, click to show all disks, select your bootable drive, click Install, type your credentials and it will begin to install OS X in your machine.
And this is how to install OS X El Capitan from a bootable drive and maintaining all data. Now if you need to install any OS X version on a blank drive like a brand new SSD, a clean install out of the box watch this next video.
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I am salvaging a mid 2013 MacBook Air 11' that was discarded with a broken screen backlight due to beverage spill and missing its SSD. (I have a very tiny budget right now so I'm only spending on more expensive items when my testing shows the machine might work well.)
I got the Apple Store to test the hardware then tested the computer myself by taking about two days to install OS X from one USB 2.0 flash drive to another USB 2.0 flash drive using an external display.
It seemed to work quite well other than that it ran at about 1% the speed of a normal Mac for anything that required disk access. This made it hard to test in any depth as problems could easily be due to OS X internal timeouts.
I have now purchased a USB 3.0 external hard drive and knowing how slow USB 2.0 flash drives are to install from and to, I'm hoping to use the fast external hard drive for both, but I'm not sure whether this is possible or how.
The external drive happened to come pre-formatted for Mac with two partitions, which to seems ideal.
El Capitan Bootable Usb Download
Can I just copy the contents of the El Capitan bootable installer USB to one of the partitions? I fear I may need to copy it as a drive/partition rather than as a file or folder, since it must be bootable. Does such a copy require special software?
How To Boot El Capitan From Usb
I need to ask the experts here without being able to experiment since I'm unable to justify the purchase price of a magsafe 2 power supply until I'm confident the machine will work well. I am able to borrow a power supply only occasionally from friends.
Install El Capitan From Usb Boot
I realize doing an Internet OS restore via Wi-Fi is another possibility but the Wi-Fi I have access to is both slow and behind a captive portal. So for this question I'm not pursuing that option thank you.