Follow the instructions here: Clean Install Ol Capitan On Your Mac The Right Way, Heres How Guide.
Step 2: Next, were going to need to format the USB flash drive to get it into a state where it can accept the payload for the installation of El Capitan.
Step 5: Now open up Disk Utility and drag g from the desktop to the left-hand sidebar.
The only way to upgrade to the new OS was by way of downloading it from the Mac App Store.This is similar to the process of making a bootable Lion installer DVD, but I prefer a USB flash drive because its faster, smaller, and I have a MacBook Air so an installation DVD isnt too useful for.Hold the Option key on your keyboard when you hear the iconic OS X startup chime.Requirements: Got all that?Now that the USB flash drive has been formatted to the appropriate filesystem, we are going to restore the previously mounted g file to the blank USB drive.The Lion USB key drive becomes a recovery disk with access to Disk Utility, re-installation, access Time Machine backups, and everything the Recovery HD partition does.Remember that this drive will be formatted as part of the process, so if it currently has anything important stored on it then youll need to make a copy of that in a safe location.Next, we format the USB flash drive, this will become ghost windows xp sp3 all mains 2012 the bootable Lion installer: Plug the USB flash drive into your Mac.Select guid Partition Table and press.Double-click on g to mount the Lion disk image onto your Mac desktop, it will show up like the image below.How To Make OSX Lion Bootable USB Flash Drive.
Type it and hit Enter on the keyboard.Erase tab from the main window interface.Were going to solve this issue for you today, by making a Bootable Flash Drive of Lion!Step 10: Click Restore and type in your password.Step 4: Go to Contents and jump inside the SharedSupport folder and youll find a file titled.Launch Disk Utility, select your USB drive from the left side of Disk Utility, then click on the Erase tab.First we are going to locate the Lion g file and mount it : Navigate to your applications folder, right-click (or control-click) on the Install Mac Oion.Prerequisites: Any computer running.