- Download and create usb installer for mac os z how to#
- Download and create usb installer for mac os z install#
- Download and create usb installer for mac os z upgrade#
- Download and create usb installer for mac os z portable#
Now you just need to boot from the freshly made OS X Yosemite drive, do that by rebooting the Mac and holding down the OPTION key and selecting the “Install OS X Yosemite” drive upon boot. The OS X Yosemite boot installer drive in Mac Finder
Download and create usb installer for mac os z install#
Your freshly made OS X Yosemite install drive will be visible in the Mac Finder: Terminal-command-to-make-boot-installer-for-os-x-yosemite When finished and the terminal reads “Done”, exit out of Terminal, you’re ready to use the bootable installer drive You’ll see a series of message like the following, let it finish until you see the “Done” message – this may take a while as multiple GB of data have to be transferred:
Sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install OS X Yosemite.app -nointeractionĮnter the administrator password when requested (this is required to use the sudo command – the password will not show up and it looks as if you’re not entering anything, that is normal behavior for the command line), then hit the RETURN key to start making the installer 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 If you already have the OS X Yosemite installer application in the /Applications/ folder on the Mac, you can skip directly to step 3:ĭownload OS X Yosemite from the Mac App Store, it’s free (direct link) – DO NOT INSTALL IT YET The next step will actually make the installer drive from the previously formatted USB disk. Step 2: Making the OS X Yosemite Installer Drive Now that the drive is ready, you can move on to making the actual installer. Next go to the “Partition” tab and under ‘Partition Layout’ click on the pulldown menu, changing it from “Current” to “1 Partition”Ĭhange the name to “Untitled” from ‘Untitled 1? then click on the “Options” buttonĬhoose “GUID Partition Table” as the partition scheme and choose “OK”Ĭlick “Apply” and confirm the creation of the partition If you don’t want to erase the drive, find one you don’t mind formatting instead.Ĭonnect the USB drive to the Mac and launch Disk Utility, then select the drive from the left side drive listĬlick on the “Erase” tab and format the drive as “Mac OS Extended (Journaled)”, then choose “Erase” and confirm This is going to format the drive so that it will be a bootable installer, without doing this the drive may not be bootable. Step 1: Format the USB Drive to be Bootable
Download and create usb installer for mac os z portable#
The convenience of a portable flash drive is undeniable so it’s preferred if you’re going to be updating multiple Macs.
Download and create usb installer for mac os z how to#
How to Create a Bootable OS X Yosemite Installer Disk in 2 Stepsįor the purposes of this walkthrough, we’re going to use a 16GB USB flash thumb drive, but you’re free to use whatever you want, and you could even use an external hard drive if you really wanted to. Basically, if the Mac is capable of running OS X Mavericks, it is capable of running OS X Yosemite too. Of course, we’re assuming the destination Mac(s) that are going to get Yosemite are compatible. The “Install OS X Yosemite.app” launcher in the /Applications/ directory of the Mac (downloaded from the App Store, but not installed) Before you begging, make sure you have the following basic requirements met:Ī USB Flash Drive that is 16GB or larger which you don’t mind formatting
Download and create usb installer for mac os z upgrade#
This allows for several things, the ability to upgrade multiple Macs without having to re-download the installer, the ability to perform a clean install, and also the convenience of having a separate bootable reinstallation drive in the event you need it for serving a Mac.Ĭreating a Yosemite installation drive that is bootable is quite simple, but it’s a multiple step process. Now that OS X Yosemite is available, many users may wish to create a bootable installer drive from something like a USB flash thumb drive or another disk.
Make an OS X Yosemite bootable install drive How to Make an OS X Yosemite Boot Installer USB Drive
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