Creating a bootable OS X 10.10 USB Flash Drive is a great way to have a portable version of the OS X 10.10 operating system.
You can use a bootable USB Flash Drive to install the OS X 10.10 operating system on a Mac that doesn’t have a DVD drive or to create an emergency backup of the OS X 10.10 operating system.
This post will teach you how to make a bootable OS X 10.10 Yosemite USB flash drive.
This is useful if you need to install Yosemite on multiple Macs or want an easy way to transfer the installer from one computer to another.
Guide To Make a Bootable OS X 10.10 Yosemite USB Flash Drive
Are you looking to install OS X 10.10 Yosemite onto your Mac? If so, you’ll need to create a bootable USB flash drive. Here’s a straightforward guide on how to make a bootable OS X 10.10 Yosemite USB flash drive:
Step 1: Prepare Your USB Drive With Disk Utility
To create a bootable USB drive with Disk Utility:
- Firstly, you will need a USB flash drive with 8GB of storage space to store the system files. The macOS installer requires around 2GB of free space on your hard drive before it can be installed onto the flash drive.
- Connect your new USB drive to your computer and ensure it is formatted for OS X (either FAT32 or exFAT).
- If you are unsure if this has been done correctly, open Disk Utility from Applications > Utilities > Disk Utility and select “Erase” from its drop-down menu in order to erase any existing data on your device before proceeding with step 2 below.
Step 2: Set Up Download Of Yosemite From The Mac App Store
In order to download Yosemite from the Mac App Store, click the Download button. The Mac App Store will launch and begin downloading Yosemite. You can also download Yosemite from the OS X Yosemite webpage: http://www.apple.com/osx/.
If you choose to download Yosemite from the Mac App Store, it will automatically launch once your download is complete. You can also manually launch the Mac App Store by clicking on Launchpad and then clicking on the store icon.
Step 3: Copy The Installer To Our USB Drive
Now that we have a USB flash drive with a copy of the installer on it, we need to take one more step before actually installing OS X 10.10 Yosemite:
First, open Disk Utility in OS X and select “Erase” from the sidebar menu. This will allow us to erase all data on our USB flash drive so that it is ready for use as an “installation disk.”
Next, use Finder or any other method you prefer (such as drag-and-drop) to copy your installer file onto your newly formatted USB flash drive.
Once this has been done, unplug your old computer’s hard drive from its port and plug in only one power supply instead of both at once—this will prevent damage caused by overheating.
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Step 4: Change The Ownership Of The Installer
The first step in making a bootable OS X 10.10 Yosemite USB flash drive is to change the owner of the installer. This can be done by changing its “owner” attribute to that of your root user or any other non-admin user you choose. To do this, open up Terminal and type:
chown : /Applications/Install\ macOS\ High\ Sierra\ Installer\.app/Contents/MacOS/.sdk
In this command line window (on your Mac), enter your username and password when prompted. After you’ve entered those details in both places above, type “Enter” followed by return at each prompt until all three commands are complete.
Step 5: Launch The Yosemite Installer From The USB Drive
Now, you’re ready to launch the Yosemite Installer from your USB drive.
Follow these steps:
- Launch the Disk Utility application by double-clicking the icon in /Applications/Utilities/.
- In the Disk Utility window that opens, select your external hard drive (the one with OSX 10.10 Yosemite on it) and click Repair Disk on its toolbar menu bar or press Command+R on your keyboard if it’s not highlighted yet (it should be).
- This will open up a dialog box that lets you select which file system type and whether or not to repair permissions. Make sure all options are checked off before clicking Repair Disk again.
- You’ll get an alert telling you when everything is done correctly.
What is Bootable OS X 10.10 Yosemite USB Flash Drive Useful?
Tons of people, especially developers and designers on Macs, will need a bootable Yosemite installer.
A bootable installer is an OS X version that has many of the same features as the main operating system but without being installed permanently.
This can be useful for people who don’t want their computer to get infected by viruses or malware because it doesn’t have all of the files associated with installing macOS X.
It also saves time when reinstalling or upgrading your Mac. After all, there is no need for a complete install first.
Making A Bootable OS X 10.10 Yosemite USB Flash Drive?
To make a bootable OSX 10.10 Yosemite USB Flash Drive, you’ll need the following:
- A Mac with OSX 10.10 Yosemite installed
- A USB flash drive.
- The installer for OSX 10.10 Yosemite
You can download the installer for OSX 10.10 Yosemite directly from the Mac App Store. If you don’t already have the Mac App Store on your computer, you can access it by going to the Apple menu in the top left section of your screen and selecting App Store.
The installation process can take up to 20 minutes or an hour, depending on the speed of your computer.
FAQs
How Do I Make A Bootable Yosemite Installer?
Find the file Install OS X Yosemite, then right-click the file and select View Package Contents. Open the Content folder and then the Shared folder. You will find the disk image with the files needed to create the bootable installer. Double-click InstallESD.
Does Rufus Make USB Bootable?
Rufus is a tool that helps to make bootable USB flash drives. It can be especially useful in cases where you need to make USB installation media from bootable ISOs.
Should USB Be FAT32 Or NTFS?
If you need a driver for a Windows-only environment, NTFS is the best choice. If you need to exchange files (even occasionally) with a non-Windows system like Mac or Linux, FAT32 will give you less excitement if your files are smaller than 4GB.
Can I Use Rufus On Mac?
You cannot use Rufus on a Mac, and Rufus only works on Windows XP/7/8/10 32bit 64bit versions. The only way to run Rufus on Mac is to install Windows on Mac and then install Rufus on Windows.
Does Burning An ISO Make It Bootable?
Once the ISO file is burned as an image, then the new CD is a clone of the original and bootable. Besides the bootable OS, the CD will also hold various software applications, like many Seagate utilities that are downloadable.
How Do I Create A Bootable Usb Using A Media Creation Tool?
To get a Windows 10 bootable USB:
- Install the Media Creation Tool.
- Launch the tool and select Create installation for another computer.
- Connect the USB to your Windows 10 PC.
Can I Install macOS From USB?
You can make an installation of macOS and access tools like Disk Utility from the macOS Recovery screen.
Can I Copy ISO To USB?
You can back up all of your discs to USB so you can take as many files as you want anywhere. You can transfer any ISO media — operating systems, game ROM files, Isodraw documents—to a USB drive.
Why Is My Bootable USB Not Showing?
Reboot the system into BIOS. Make sure Boot Mode is set to EFI (or UEFI). You can find this in the Boot Options menu. Make sure USB boot priority is enabled.
Are All Flash Drives Bootable?
No. Not all things that physically look like USB flash drives will be bootable from all hardware.
Conclusion
Hopefully, you now know how to make a bootable OS X 10.10 Yosemite USB flash drive; you can easily install the new operating system on your Mac.
It’s a great time to be a Mac user. The latest version of the operating system is out, and it’s better than ever. OS X 10.10 Yosemite is an absolute must-have for anyone who wants to be up-to-date with technology.
And if you’re looking for other ways to make life easier for yourself or others around here at work, this is an efficient way to get the latest features and improvements from Apple.
