Clean install mac os x lion from dvd
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- #CLEAN INSTALL MAC OS X LION FROM DVD HOW TO#
- #CLEAN INSTALL MAC OS X LION FROM DVD ARCHIVE#
- #CLEAN INSTALL MAC OS X LION FROM DVD PRO#
- #CLEAN INSTALL MAC OS X LION FROM DVD DOWNLOAD#
Mac How To #1 - Reinstalling Lion How To Erase & Factory Reset A Mac & Reinstall macOS - Step By Step Guide HOW TO: Do a Clean install of Mac OSX 10.7, 10.8, 10.9, 10.10, And 10.
#CLEAN INSTALL MAC OS X LION FROM DVD PRO#
(If you don’t want to manually re-install everything afterwards, you can use Setup or Migration Assistant to transfer your data, applications, and the like to the new installation, as described above.How to restore OS X MacBook Pro in new Hard drive How to Make a Bootable Mac OS X Mountain Lion 10.8 USB Thumb Drive How to clean install OSX Lion from Usb or DVD MAC: How To Install OS X After Formatting Your Hard Drive - Factory Reset / Fresh Reinstall OSX How to Modify an OS X install disc to work on other computers.
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Given how useful Lion’s new recovery mode is, I recommend performing a clean install just so you can restore your Mac’s drive to a standard configuration that will allow the Lion installer to create the Recovery HD partition. The first is if you’ve done some funky partitioning of your Mac’s startup drive that prevents the Lion installer from creating the special Recovery HD partition. There are, however, a couple situations in which you might consider a clean install. Based on that experience, and similar reports from my Macworld colleagues, as long as you’ve properly prepared your Mac before installing Lion, you should be just fine installing directly over Snow Leopard. What about stuff the installer and Setup/Migration Assistant don’t catch? In my experience installing Lion many times over a variety of existing Snow Leopard-and even Leopard-installations, I’ve had little trouble that I could trace directly to incompatibilities with transferred code. Lion also automatically detects some incompatible programs and system add-ons the first time you log in, as explained in our main installation article. But the Snow Leopard installer and Setup/Migration Assistant were pretty good about not transferring over incompatible software, and Lion seems to be even better. OK, so you can, but should you? Prior to Snow Leopard, I generally recommended a clean install. Should you perform a clean install of Lion? You just launch the Mac App Store app and click a few buttons to automatically reinstall everything you’ve purchased.) (This is one situation in which the more you’ve purchased through the Mac App Store, the better. If you truly want a “clean” start, you’ll instead need to manually copy your personal data from your backup to your new Lion installation, and then reinstall all of your software. Once you’ve done this, if you want to use Setup Assistant to restore data from your backup, proceed with Step 8. Specifically, scroll down to the section called “The brute-force method” and perform Steps 1 through 7, substituting “Snow Leopard” for “Leopard”-the result is a clean install. In fact, you can use the instructions in our article on how to install Lion over Leopard. Specifically, scroll down to the section called The brute-force method and perform Steps 1 through 7, substituting Snow Leopard or Lion for Leopardthe result is a clean. So if you first back up your existing Snow Leopard installation and all your files-I recommend creating a bootable clone using SuperDuper or Carbon Copy Cloner-you can then boot from a bootable Lion installer disc or drive, erase your Mac’s normal startup drive, and install Lion on it. As I noted in our main article on installing Lion, the Lion installer will let you install the new OS on a blank drive.
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#CLEAN INSTALL MAC OS X LION FROM DVD DOWNLOAD#
Given Lion’s new download-and-install procedure-instead of a bootable installation DVD, you download the Lion installer to your Snow Leopard Mac and install it from the same drive-many Mac users are asking two related questions: (1) Can you perform a clean install of Lion? and (2) Should you? Here’s my take on each of these questions.įirst, the technical question: Given that the Lion installer doesn’t include an official clean-install option, is it possible to perform such an installation? The simple answer is: Yes. This feature was eliminated in the Snow Leopard installer.)
#CLEAN INSTALL MAC OS X LION FROM DVD ARCHIVE#
(The OS X 10.2 installer actually included an Archive And Install option, which preserved your original OS in a special folder while installing a completely new, fresh copy of 10.3. For this reason, many people have advocated performing a “clean install”: wiping your hard drive (after backing it up, of course), installing the latest version of OS X, and then either using Setup/Migration Assistant to restore your application and/or personal data, or copying over your data and manually reinstalling programs. With some previous major releases of Mac OS X, upgrading over an existing OS X installation-for example, installing 10.3 over 10.2-entailed some degree of risk, as existing applications, add-ons, and support files could conflict with the new OS.