Clean install mac os x yosemite3/17/2024 Sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia –volume /Volumes/Untitled –applicationpath /Applications/Install\ OS\ X\ Yosemite. Launch Terminal app and enter the following command exactly, copy and paste works fine:.When the download completes and the “Install OS X Yosemite” app launches, quit out of it immediately.Download OS X Yosemite from the Mac App Store, it’s free ( direct link) – DO NOT INSTALL IT YET.Step 2: Making the OS X Yosemite Installer Drive Click “Apply” and confirm the creation of the partition.At the very least you will probably get significantly better performance from your Mac, and you may. Choose “GUID Partition Table” as the partition scheme and choose “OK” So if you are having problems with OS X Yosemite, I recommend trying a clean install right away. ![]() Change the name to “Untitled” from ‘Untitled 1′ then click on the “Options” button.Next go to the “Partition” tab and under ‘Partition Layout’ click on the pulldown menu, changing it from “Current” to “1 Partition”.Click on the “Erase” tab and format the drive as “Mac OS Extended (Journaled)”, then choose “Erase” and confirm.Connect the USB drive to the Mac and launch Disk Utility, then select that USB drive from the left side drive list (be sure you select the USB drive you want to make the bootable installer from).Step 1: Format the USB Drive to be Bootable I may or may not confirm my own personal success with this method. ![]() I have only done step 1 at the time of posting this. ![]() This is mostly just a cut&paste post, in case the original vanishes.
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