• If you’ve never had Yosemite on this Mac, the first thing to do is visit the Mac App Store, download Yosemite, and install it. Once you’ve done that, here’s how to install, reinstall, or upgrade Yosemite, step by step: Boot from your Recovery HD partition by restarting your Mac while holding down the Command+R keys.
• Problem after erasing the HD of a brand new Mac (OS X Yosemite) with Disk Utility. MacBook Pro not booting, lost partition.
• 1- turn the Mac on and hold option + R. 2- select disk utility and make sure my HDD is formatted to Mac compatiblity. 3- Select retinstall Yosmite and choose my HDD, sign in and wait for installl. 4- After install is done, the system reboots and “OS X Installer” starts to launch.

1. Download Yosemite Disc Utility Mac
2. Free Mac Disk Utility
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4. Download Yosemite Disc Utility Mac Download
5. Download Yosemite Disc Utility Mac Os
6. Download Yosemite Disc Utility Mac Catalina

Just plug in the drive into a SATA to USB cable then to your computer, Go to disk utility and format it to Mac OS extended, Download Yosemite and when it asks which drive to write to, install it to the new, external drive. Since you have a 15' MacBook Pro, look into how your graphics card will be affected by the change in OS.

Creating a bootable USB drive of OS X Yosemite 10.10 if you want to save it on a external drive for future usage or just want to install it on multiple Mac computers. To make OS X Yosemite bootable USB installer drive, there are few requirements. Lets see what are those.

Note: This guide to make installer USB drive is for OS X Yosemite Developer Preview

See also: Dual Boot OS X Yosemite and Mavericks

Make OS X Yosemite Bootable USB

Requirements

• You must have an external USB drive or storage media with capacity of at-least 8GB (Save data from it because we are going to format it).
• OS X Yosemite installer downloaded (You can join OS X Beta program)

Prepare USB drive for OS X Yosemite

Open Disk Utility from “Applications” > “Utilities” or press “cmd+space” keys form keyboard to find “Disk Utility”.

Plug the external USB drive into Mac (make sure you save your stuff from it). Once you attached the USB drive, it will shown on the left panel of Disk Utility.

Select the drive and then do the following steps to create a single partition that is required to make USB installer drive for OS X Yosemite 10.10.

Click on “Partition Layout” drop-down menu and select “1 Partition” option from it.
Then enter the Partition information Name: ”osxyosemite”, Format: “Mac OS Extended (Journaled)”.
Click the “Options” button to select the partition scheme, so select “GUID Partition Table” option and click OK button.

To complete the creating partition process hit the “Apply” button and then “Partition” button. This will take some time to format and making USB drive as a 1 partition. Once done, you will notice a new drive name will be displayed on the left side, the name that you given in the partition information. Now close the Disk Utility tool.

Show hidden files

Showing hidden files is required, because there are few hidden files in the OS X Yosemite installer package that you need to unhide first to write them on bootable USB drive.

Open Mac “Terminal” command line: press cmd+space keys and type Terminal in the spotlight, click the Terminal from search results or just open the Terminal from Applications > Utilities > Terminal.

Type the following two commands one by one:

defaults write com.apple.finder AppleShowAllFiles YES

Killall Finder

First command is going to show hidden files and the second one is to restart the Finder so we can see the instant effect of first command. Close the Terminal.

Open Applications, here you will see your downloaded OS X Yosemite file “Install OS X 10.10”. Cmd+click on it to view the menu, select “Show Package Contents”.

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Open “Contents” > “SharedSupport” folder and here you will see “InstallESD.dmg” file, double click to open the file and OS X may starts verifying this file so let the verification process finished.

After that you will see a folder with the following content in it, “BaseSystem.dmg” is the file that we need and it was hidden, so now you know that why we show the hidden files in above steps.

Open the Disk Utility again from “Applications” > “Utilities” > “Disk Utility” or by using Spotlight search.

Free Mac Disk Utility

Load the “BaseSystem.dmg” file into the Disk Utility, right-click on the file and choose “Open With” > “Disk Utility” option. After doing that open the Disk Utility and you will see the file “BaseSystem.dmg” is loaded in the Disk Utility on the left side.

Restore Disk Image

Now we are going to restore “BaseSystem.dmg” disk image on the USB drive.
Select your USB partition that we created in previous first steps, then click the Restore tab.
Under Restore tab there are two fields, Source and Destination.
Click and drag the “BaseSystem.dmg” to Source field and “osxyosemite” usb drive to Destination filed, see screenshot below to get more idea. When done hit the Restore button and you need to confirm “Are you sure you want to replace the content on USB drive with the content of disk image” so click the Erase button to confirm, after that you may need to enter the administrator password. Restoring disk image is time taking process so be patient.

Once the restoring disk image process is finished you will see a folder like this. Here, open the “System” > “Installation” folders and move the Packages file to trash.

Copy the “Packages” folder from the folder where the “BaseSystem.dmg” exist. and paste it into the Installation folder that you just opened in previous step.

Mac os drive journaled vs case-sensitive journaled. Hide the system files again using this command
defaults write com.apple.finder AppleShowAllFiles NO

How to Boot from USB Drive

Download Yosemite Disc Utility Mac High Sierra

You must know the system requirements of OS X Yosemite before installing it, If your system to capable to run this OS X version 10.10 then Shutdown your Mac, plug the OS X Yosemite Bootable USB into Mac. Press the power button again to turn it On and then hold the Alt or Option key from keyboard, when you see this screen release the button. Double click on the USB drive to boot from it.

Congratulations! you successfully perform all steps to make bootable USB drive to install OS X Yosemite on more that one Mac computers without worried of downloading it on each computer separately, you will saved lot of bandwidth and time as well. Thanks for reading if you have any problem we are here to help you just write your problem below in comments box.

Welcome! Do you know what is macOS? macOS is an operating system which we can use only and only for Macintosh computers. And Mac computers are one of the most famous popular computers in the current era. Therefore, Mac computers are having great quality and nice performance more than other computers. However, most of the people those who are in touch with computers they are preferring Macintosh computers. From that time that Apple build a Mac computer and released for the public. From that time till now Apple is developing a great operating system for Mac. Download macOS X El Capitan, then macOS X Yosemite, macOS Sierra, macOS High Sierra, and macOS Mojave. One of the most later updated operating systems of Apple company is macOS Mojave. That everyone like it due to its great features. Download macOS X Yosemite Virtualbox & VMware.

Download macOS X Yosemite 10.10

Download macOS X Yosemite 10.10 Image

Apple introduced macOS X Yosemite 10.10 for the public. While all the companies were coming together and introducing new things. Therefore, Apple company introduced macOS X Yosemite there in the worldwide conference. By the passage of time, the worked on macOS Yosemite. And they brought some changes added some new features in macOS X Yosemite. Now macOS X Yosemite is the 11th major release of Apple. And macOS X Yosemite is the best developers for Mac users. Therefore, macOS X Yosemite was announced in 2014 at WWDC and released the beta tester for the public.

Still, macOS X Yosemite is one of the best-operating systems among the macOS. Due to having some cool features that other macOS operating systems don’t have. Let’s know about some features of macOS X Yosemite the first one is Handoff, Safari, Keynote, and some more features it has. Like New user interface, Notification Center, and Spotlight.

System Equipment to install macOS X Yosemite

To install macOS X Yosemite in Mac computers. You should know that which computer is better to install macOS X Yosemite on it. Therefore, below you can have a better introduction to the Mac computer. Which can more suitable for macOS X Yosemite.

• iMac (Mid 2007 or later)
• MacBook (Almunium late 2008 and early 2009 or later than that)
• MacBook Pro (130-inch, Mid 2009 or later) – MacBook Air (Late 2008 or later)
• Mac Mini (2009 or later)
• Mac Pro (Early 2008 or later)
• Xserver (2009)
• There is some more latest version of Mac computers. That you can install macOS X Yosemite on it.

Install macOS X Yosemite on VirtualBox & VMware

While you are installing macOS X Yosemite on your PC. But you don’t know that there are other platforms also which you can install macOS X Yosemite on that. Therefore, you can install macOS X Yosemite on VMware & VirtualBox If you are a heavy user of macOS operating system. But you don’t have any Macintosh computer. In this case, you can easily install any kind of macOS operating system on your Windows computer. It is totally simple just download any of Virtualization Box and install it on your computer. Then simply create a Virtual machine on any platform of Virtualization Box. Again if you don’t know that way of installation. I will provide you below the separate of installing macOS X Yosemite on VMware & VirtualBox. One thing more installing macOS X Yosemite on VMware is better and easy than installing on VirtualBox.

Download macOS X Yosemite 10.10 Image for VMware & VirtualBox

The image file of macOS X Yosemite is created only to install in VMware and VirtualBox. Therefore, the file is completely compressed with Winrar and 7Zip. Which voluntarily you can install it on VMware or VirtualBox. And the image file of macOS X Yosemite is uploaded on Google Drive and MediaFire. Therefore, Google Drive and MediaFire is a safe place for this. We uploaded the file of macOS X Yosemite in Google Drive for the purpose. That you should download it easily with some few clicks.

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• Download macOS X Yosemite

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Conclusion

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That’s all about macOS X Yosemite and some information about. Therefore, if have something to share about this feel free and share your points. And don’t forget to give us feedback for your more support and subscribe to our website. To get notification about our latest post updates.