I asked earlier about how to create a Bootable drive for the purpose of installing Mac OS on an older machine, and I received a great answer (thanks to @David Anderson).
However, now that I have the Bootable drive containing Mac OS El Capitan, I cannot find good information on how to actually install from it.
When I turn on my iMac 2011, it takes me straight to the Recovery screen (because I previously Erased the main drive). In Disk Utility, I see my USB drive. When I go back to the menu, and click "Reinstall OS X", I get a prompt saying "OS X can't be installed because you aren't connected to the internet". When I do connect, I click try again and then a fail prompt comes up saying "A required download is missing". This is where I hit a dead end.
Google searches for "install Mac OS from bootable drive" turn up nothing about the actual installation. All the articles are about how to create the bootable drive.
Does anyone know how to actually install the OS? Perhaps some command I can enter into the terminal at the Recovery screen?
Thank you very much in advance
Best Answer
Install El Capitan
below an icon. The Mac should start booting from the flash drive.The first window viewed should be similar to the image shown bellow. Click on the
Continue
button.Proceed until you reach a window similar to the image shown below. From here, select
Disk Utility...
from theUtilities
pulldown on the menu bar.Highlight the internal drive as shown in the image below, then click on the
Erase
button.Enter a
Name
for the volume to hold El Capitan. SetFormat
andScheme
as shown in the image below. When finished, click on theErase
button on the popup window.When the popup window shown below appears, click on the
Done
button.When you see window, similar to the image shown below, select
Quit Disk Utility
from theDisk Utility
pulldown on the menu bar.Highlight the volume you just named as shown below, then click on the
Continue
button.Below is an image of El Capitan installing. To finish, answer any questions asked by the installer.