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Clean Mac OS X 10.8 (Mountain Lion) install instead of upgrade?

Hello.


From App Store, I downloaded the free Mac OS X 10.8.2 upgrade due to the new MacBook Pro from a few days ago. Is it possible to do a clean install from scratch and not upgrade over 10.7.x or a new drive? I would like to keep the new HDD clean as possible with no old stuff. I have not migrated the old data from the old MacBook Pro yet.


Thank you in advance. 🙂

Posted on Sep 21, 2012 12:08 PM

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20 replies

Sep 21, 2012 12:25 PM in response to Imp68

Imp68 wrote:


You could boot from the Recovery partition, holding CMD + R while turning on the computer.


Go to disk utilties and erase the drive, then close disk utilties and reinstall.

Um, reinstall? I am not reinstalling. I want to do a clean installation of the newer Mac OS X version. For example, MBP came with 10.7.x. I got the free 10.8. I want to install 10.8 cleanly onto the formatted drive.

Sep 21, 2012 12:51 PM in response to antdude

Yeah you need to make a bootable drive of mountain lion. http://www.macworld.com/article/1167857/how_to_make_a_bootable_mountain_lion_ins tall_drive.html. Then open the Mac Appstore and go to purchases and accept your iLife Apps just so that is taken care of. Then boot to recovery using cmd+r and go to Disk Utility and erase your drive and then boot to the installer drive (this process is given in the link). Install Mountain Lion, when its done you will have to go to the Mac App Store and redownload your iLife Apps. But, I do have to say if you are going to migrate data from an old MacBook then that will defeat the purpose of a clean install. To keep it as a clean install all you can do is copy over user data from an old MacBook and completely reinstall all apps making sure you only install compatible apps.

Sep 21, 2012 1:25 PM in response to cbs20

cbs20 wrote:


Yeah you need to make a bootable drive of mountain lion. http://www.macworld.com/article/1167857/how_to_make_a_bootable_mountain_lion_ins tall_drive.html. Then open the Mac Appstore and go to purchases and accept your iLife Apps just so that is taken care of. Then boot to recovery using cmd+r and go to Disk Utility and erase your drive and then boot to the installer drive (this process is given in the link). Install Mountain Lion, when its done you will have to go to the Mac App Store and redownload your iLife Apps. But, I do have to say if you are going to migrate data from an old MacBook then that will defeat the purpose of a clean install. To keep it as a clean install all you can do is copy over user data from an old MacBook and completely reinstall all apps making sure you only install compatible apps.

Doesn't Mac OS X 10.8 come with those iLife Apps like in the already installed 10.7.x? When I meant migrate data, I meant the user data. Not the old programs, settings, etc. I just want to start clean and then copy over the old 2008 MacBook Pro's documents, music, iTunes (e.g., iPhone 4S data), etc.


Now, I have a problem. I need to get a bootable storage that is over 8 GB. I only have a 4 GB flash drive and do't have a spare HDD to use. I do have blank DVDs though! Including dual layer types!

Sep 21, 2012 1:34 PM in response to cbs20

cbs20:


Three related questions please so that I can get a handle on this:


If an OS is re-installed "on top of itself" (eg.,Lion on Lion), certain parts of the old Lion will be preserved, such as the User Account, Email Accounts and possibly others. This is convenient but it risks corruption being carried over to the new (re)installation.


1. Is that correct?


If so, then the only way to prevent that is to do an Erase and Install (that is, erase the system disc).


2. Is that correct?


When installing a new OS (eg., Mountain Lion on top of Lion), nothing from the old OS (Lion in this example) is preserved and the installation of the new OS (Mountain Lion in this example) is identical to an Erase and Install, and therefore an Erase and Install is unnecessary.


3. Is that correct please?


Thanks.

Sep 21, 2012 1:38 PM in response to Imp68

Imp68 wrote:


10.8 doesn't come with iLife and neither did 10.7. Computers came with them, though. You can recover them through the app store.


For those with systems pre-10.7, there's an applications DVD with the iLife apps.

Interesting. So, it's like Windows OEM with preinstalled software. I didn't know Apple did this too. I thought they gave all that with that Mac OS X. I don't know if this new MBP's Mac OS X 10.7.x has iLife. I think it does. It better have iCal and iPhoto since the old MBP has them and are used.

Sep 21, 2012 1:49 PM in response to antdude

All macs come with iLife, afaik, so I'd be shocked if yours didn't. iCal (now Calendars) is part of the OS. iPhoto is one of the iLife apps.


edit ---


Further, you can test that by deleting iPhoto from the applications folder, then opening the App store. Look in the purchases tab and you'll see an "install" beside it, if you're logged in with the AppleID your iLife apps were associated with. Or you can just open the App store and look in the purchases tab without deleting iPhoto and you'll see an "installed" beside it.


If you try to delete Calendars, you'll see a message about it being part of the OS.


Message was edited by: Imp68

Sep 21, 2012 2:27 PM in response to antdude

Your system came with Lion, right? I'm assuming yes, since you said it was newer, but you had to buy mt lion. When you set it up, you would have had to install the iLife apps through the app store, accepting them with your AppleID.


Open the App Store, click "Store" at the top of your screen. Make sure you're signed in with your AppleID under that menu. Then, back in the App Store window, click the Purchases tab at the top. Do you see your iLife apps there (iphoto, garage band, and imovie)?


If so, then when you install your OS again, you can just go back into the app store and redownload them.


See http://support.apple.com/kb/HT4718 which mentions reinstalling them after doing an erase.

Sep 21, 2012 2:31 PM in response to Imp68

Imp68 wrote:


Your system came with Lion, right? I'm assuming yes, since you said it was newer, but you had to buy mt lion. When you set it up, you would have had to install the iLife apps through the app store, accepting them with your AppleID.


Open the App Store, click "Store" at the top of your screen. Make sure you're signed in with your AppleID under that menu. Then, back in the App Store window, click the Purchases tab at the top. Do you see your iLife apps there (iphoto, garage band, and imovie)?


If so, then when you install your OS again, you can just go back into the app store and redownload them.


See http://support.apple.com/kb/HT4718 which mentions reinstalling them after doing an erase.

Yes, the new MBP came with Lion/10.7.x. I have not touched App Store on it yet. I did get the free upgrade code to download 10.8/Mountain Lion. I will do that this weekend. Is iLife free to get? Someone told me that all Macs come with iLife. I am confused!

Sep 21, 2012 2:39 PM in response to antdude

Yes, it's free when you buy a mac. 🙂


If you haven't touched the app store yet, how did you get them on your system? Or did the store set it up for you? I hope they used your AppleID...


edit ---- here's the important part of that article I linked:


If you erase install OS X Lion or OS X Mountain Lion on a new Mac that shipped with OS X Lion or OS X Mountain Lion installed, you can download iPhoto, iMovie, and GarageBand from the Mac App Store.

  1. After installation, start (up) from OS X.
  2. Double-click the App Store icon in the dock.
  3. Enter your Apple ID and password.
  4. Click Purchases.
  5. If you haven't previously accepted your bundled iLife applications within the Mac App Store, you should see your iLife applications appear in the Accept portion of the screen. Click Accept.
  6. You may be asked for your Apple ID and password once again. Your iLife applications now move to the Purchased section. These applications are part of the software that came with your Lion based computer. Your account will not be charged for them. Click Install to complete installation of your applications.

Sep 21, 2012 2:38 PM in response to Imp68

Imp68 wrote:


Yes, it's free when you buy a mac. 🙂


If you haven't touched the app store yet, how did you get them on your system? Or did the store set it up for you? I hope they used your AppleID...

It came from an university's computer store. I will have to check to see if iLife applications are really there. I only looked briefly. No to AppleID since I had to make a new Mac OS X administrator account. 😉

Clean Mac OS X 10.8 (Mountain Lion) install instead of upgrade?

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