OS X 10.10 Yosemite [DMitra]

OS X 10.10 Yosemite



Every bit as powerful as it looks.

An elegant design that feels entirely fresh, yet inherently familiar. The apps you use every day, enhanced with new features. And a completely new relationship between your Mac and iOS devices. OS X Yosemite will change how you see your Mac. And what you can do with it.


Completely new. Completely Mac.
Over the years, OS X has changed in many ways. But the principles that define it haven’t: power, simplicity, beauty. So when we set out to create OS X Yosemite, we wanted to make it more powerful and easier to use, while maintaining the elements essential to Mac. It’s the next natural step in the evolution of OS X. Not just because of how it looks. But because of what it empowers you to do.


OS X Yosemite System Requirements

To install Mavericks, you need one of these Macs:

1.iMac (Mid-2007 or later)/MacBook (13-inch Aluminum, Late 2008), (13-inch, 3.Early 2009 or later)/MacBook Pro (13-inch, Mid-2009 or later),/MacBook Pro (15-inch or 17-inch, Mid/Late 2007 or later)/MacBook Air (Late 2008 or later)/Mac mini (Early 2009 or later)/Mac Pro (Early 2008 or later)/Xserve (Early 2009)

Your Mac also needs:

2.RAM 2/4GB
3.8 GB HDD space


Installation:

1. Launch Disk Utility, which is available in /Applications/Utilities/Disk Utility.app. You can also find the Disk Utility app by searching via Launchpad.
2.On the Disk Utility app, you should see Macintosh HD in your list of items on the left-hand side of the app. You will likely see two ‘Macintosh HD’ options. The first one applies to the logical volume, and the second nested ‘Macintosh HD’ applies to the primary partition. Select the first ‘Macintosh HD’ option.
3.Click the Partition tab
4.Click the ‘+’ sign under the Partition Layout section. This will display a ‘Macintosh HD 2′ partition that can be resized using the drag handle between ‘Macintosh HD’ and ‘Macintosh HD 2′.
5.Position the drag handle to ensure that the Macintosh HD 2 partition has enough space. I recommend using at least 50GB.
6.Under Partition Information on the right-hand side of the screen, you’ll see the Name input box. By default the name will be Macintosh HD 2, but I recommend renaming the partition to something that’s easier to identify. Since we’re installing Yosemite, I suggest using the name Yosemite HD.
7.Ensure that all other settings are left default, including the Format, which should be set to Mac OS Extended (Journaled). Click Apply near the bottom right-hand corner of the screen to create the partition. You will receive a prompt asking if you’re sure you want to proceed. Click the Partition button to continue.
8.Creating the partition will take a few moments. After the partition is created, you will see another partition—Yosemite HD—listed under the Macintosh HD logical volume.
9. Launch the “Install OS X 10.10 Developer Preview.app” to begin the Yosemite installation process.
10.Click Continue
11.Click Agree and again
12.Click Show All Disks…
13.Click Yosemite HD or whatever you decided to name the new partition
14.Click install and enter your administrator password if prompted
15.The installation of Yosemite should begin. If you’re not plugged into a power source (Macbook), you may get a prompt that you should plug in the power plug before continuing. Or, if you discern that you have enough battery life left, click continue.
16.After the install completes, you’ll be booted into Yosemite. You can easily switch back to your older OS X install, presumably Mavericks, by rebooting and holding the Option key (⌥) as you reboot. You can also use the built in Startup Disk feature found in System Preferences to switch between OS installs.
17.Its Done.

Screen: