How to instal mac lion

Categories: Mac OS X. Learn more This will allow you to select one of multiple booting options. It may take a few minutes to boot into recovery mode. Select the drive or volume you want to reinstall Lion on and follow the onscreen instructions to complete the installation.

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Note: This option requires an internet connection in order to download the OS from the Apple servers. Nathan Walker. If you are trying to download an older version of Mac OS before Yosemite, you will get this error because the software is no longer available from Apple. You can pick up an install disk at an Apple Store or order it online. Yes No. Not Helpful 0 Helpful 2.

How can I reduce the unwanted applications that take up disk space on my Apple computer? If you mean the pre-installed applications, they cannot be removed or put in the trash like downloaded apps. Not Helpful 4 Helpful 1. Include your email address to get a message when this question is answered. You can install Lion on any internal drive, including SSDs solid state drives. The Lion Recovery partition takes MB of the free space.

The Lion installer creates two partitions, one for Lion and one for recovery tools. You can use the Recovery Partition to repair drives, fix permissions, and format drives, as well as reinstall Lion if needed. The Recovery Partition includes a bootable system with Disk Utility.

How to Install (or Reinstall) Mac OS X Mountain Lion - dummies

The target volume should be erased at best; at a minimum, it should not contain any OS X system. With previous versions of OS X installers, you could erase the target drive as part of the installation process. With the Lion installer, there are two methods of performing a clean install. One method requires you to create a bootable Lion install DVD, and the second lets you perform a clean install using the Lion installer you downloaded from the Mac App Store.

The difference between the two methods is that to use the Lion installer directly, you must have a drive or partition that you can erase before running the installer. Using a bootable Lion install DVD allows you to erase a drive or partition as part of the installation process. If you're going to perform a clean install of Lion on a drive other than your current startup drive, then you're ready to proceed. Before you begin the Lion installation process, back up your existing OS X system and user data.

Performing a clean install on a separate drive or partition shouldn't cause any data loss with your current system, but stranger things have happened, and it is best to be prepared. At a minimum, make sure you have a current backup. For more protection, make a bootable clone of your current startup drive. You must erase the target drive before you can start the Lion installation process.

Remember that to use the Lion installer as downloaded from the Mac App Store, you must have a working copy of OS X to start the installer from.

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You may need to create a new partition to install to or resize existing partitions to create the necessary space. Before you start the Lion installer, close all other applications that are currently running on your Mac. After your Mac restarts, the installation process continues.

Reinstalling Lion

A progress bar displays along with an estimate of the time it will take to complete the installation. Installation speed ranges from 10 to 30 minutes. If you have multiple displays connected to your Mac, turn all of them on before you begin the Lion installation process. The installer may display the progress bar on a display other than your usual main screen; if that display isn't on, you'll wonder what's happening.

  • How to Perform a Clean Install of OS X Lion on Your Mac.
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  • When the installation of OS X Lion is complete, your Mac displays a Welcome window, which marks the start of the registration and setup process for Lion. However, it is better not to use the Migration Assistant at this point, opting instead for a clean installation of Lion.

    Upgrading to OS X 10.7 (Lion)

    After you know Lion is installed and working correctly, run the Migration Assistant from the Lion installation to move any user data you need to the Lion disk. You can find the Migration Assistant in the Utilities folder inside the Applications folder. Registration is optional. You can click through the next two screens if you want.

    If you do fill in the registration information, some of the applications you use in Lion are pre-populated with appropriate data. Specifically, Mail and Address Book will already have your primary email account information partially set up, and Address Book will have your personal entry already created. Enter your Apple account information, and click Continue to open a window that requests information.

    You aren't required to enter it.

    Perform a Clean Install of OS X Lion on Your Mac

    When you're finished, or if you prefer not to register, click Continue. Lion requires at least one administrator account to be set up. You can use the administrator account to perform most Lion housekeeping tasks, to create additional users, and to install any applications that require administrator privileges. The Lion Setup Assistant is just about done. The final step shows you how to use the new touch-based gesture system in Lion.