Reinstalling mountain lion from App Store

My 2009 MacPro crashed badly, require a complete reinstall (reformat hard drive).
It was running MountainLion.
I have the Snow Leopard OSX disc, but bought the upgrade online.
How can I upgrade the OSX again?
Ultimately I want to restore from my Time machine backup.
Thanks,
Chris

If you purchased ML from the Mac App Store, and installed on your machine, restart holding the Command and Option and R keys and you should get the drop down with the choice to reinstall Mac OS.

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Reinstall Mountain Lion from App Store

Okay, so I got over-excited, and upgraded from Snow Leopard to Mountain Lion
To cut a long story short, I need to go back to Snow Leopard to run a couple of programs that won't work with Mountain Lion (logic 8 to be one), save/finish some files/projects (providing my old busted hard drive can be restored from the recovery company). My question is, as Mountain Lion will be in my App Store, will I be allowed to re-install it without having to pay for it again?
Cheers, Chris.

Yes, if you are able to get the install to actually work. After purchasing and installing on my Macbook Pro I have been waiting for 2 days for the install to start on my IMAC.
Any software that you have purchased through the MacStore will be there in the future for you to reinstall on any Mac that runs with your apple ID. Apple kindly let you pay for a license of software an run it on all the apple products you own.
best of luck queing for the install again

Can't download mountain lion from app store, shows error message: retry/cancel and starts from begining

can't download mountain lion from app store, shows error message: retry/cancel and starts from begining,
I alreasy paid for it
Can I get a direct download link other than from app store

Try opening the Terminal utility in your system and running the following command to open the system's caches folder:
open $TMPDIR../C
Then locate and remove the folder called "com.apple.appstore" and then try relaunching the App Store and downloading the installer again.

Trouble with downloading os x mountain lion from app store

Hi! I purchased the new os x mountain lion from app store but I have trouble with downloading it. Its starts the download but constantly stops after few mbs and says an error has occured, check you internet connection. My internet connection is fine, everything else works even downloading other apps. Has anyone an idea how to fix the problem?

Firewalls and anti-virus software can interfer with iTunes/Mac App Store downloads.

Puchased mountain lion from app store and tried downloading via store 4 times, always rcvg an alert stating "error downloading"

puchased mountain lion from app store and tried downloading via store 4 times, always rcvg an alert stating "error downloading"
Is there any other mean to get the mountain lion.
I ve a 512kbps connection.

I believe you have correctly identified your 512kbps connection as the source of the problem.
The Mountain Lion download is more than 4 gigabytes. You should try hard to find a much better, faster, more robust connection.

Mountain Lion from Apps Store won't download?

Purchased Mountain Lion from Apps Store - but it will not havedoIwnload. The Icon just appears and it says " waiting " for an hour or so and does nothing?

Yes as long as these are both your computers. Transfer target disk mode, USB flash drive, external HD, DVD, Dropbox, etc
Are the computer close by and portable or at a distance?? This might dictate how you move your download.

Can't download 10.8 mountain lion from app store

Hi,
I own a 2008 mac pro. The system drive was still running an original install of osx (upgraded to the latest version of 10.8). It had become pretty slow, so I bought a new ssd for a fresh install of the os.
I own 10.6 on dvd, which I have used previously on another computer to acomplish the exact same thing I'm trying to do here; install 10.6 on a new drive, then upgrade to 10.8 (the only way I know how to do this).
So I did the usual - new drive in, old drive out, install 10.6, update 10.6 until the "app store" becomes available. So I'm now running 10.6.8. I open the app store, log in, go to "my purchases" and see osx mountain lion sitting in the list. It says I purchased it on the 12th of November, 2012, which is correct. If I click on "osx mountain lion", the app store informs me that "Item not available. The item you've requested is not currently available in the UK store". I bought the "item". I paid good money Apple. Why can't I download this? If I click "download" a little spinny thing appears for a couple of seconds next to the back/forward arrows, then disappears.
10.9 is unsupported with the software I use - everyone's reporting faults, so I need 10.8. Can someone help? Obviously I can just put the old drive back in, but this NEEDS to be available somehow...?
Thanks

That's good to hear.
After some mucking about I managed to get it downloading on another computer (which is already running 10.8). Hopefully I should be able to copy it over and install.
But I will let Apple know - potentially pretty disasterous for people.
Thanks.

I try to upgrade to mountain lion from app store , but it tells me you need 2 gig memory !! what do i do ?

I try to upgrade my iMac's desktop operating system to mountain lion by app store , but it tells me : you require 2 gig of memory ? !! what do i do please ?

For quality Memory and upgrade videos, visit OWC or Crucial

How to restore macbook after downloading Mountain Lion from app store

I just downloaded Mountain Lion from the app store. How do I restore my Macbook to it's factory settings without the CD? (Since I downloaded it online without the CD)

Welcome to the Apple Support Communities
If you want to reinstall the original Mac OS X version that came with your computer, you need the Mac OS X DVD that came with the computer.
If you want to reinstall Mountain Lion, the installer creates a recovery partition to reinstall OS X and do some maintenance tasks. You can access to it pressing Command and R keys while your Mac is starting

HT1338 I have a new mac mini and cannot download mountain lion from apps store gives error

I have a new 3rd gen i5 intel mini mac and it wont' download ML from app store it gives the error
We could not complete your purchase. OS X Mountain Lion is not compatible with this computer.
I want to reinstall it for its running to slow and add only what I need.
it installs on my older mac mini

Assuming your mini came with ML installed and you have already made a backup of your personal data, restart the computer while also holding down 'Command-Opt-R' and it should reinstall automagically from Apple's servers.

Download older Version of Mountain Lion from App Store

Hi,
Since i have lot's of problems with 10.8.5 i wanted to know if there is a way to download an older Version of Mountain Lion from the App Store?
I tried yesterday but it auto downloaded version 10.8.5. I tried to backup from time machine but this screwed up things completely...

...is a way to download an older Version of Mountain Lion from the App Store?
Nope, your stuck with it breaking things or being buggy, no way to revert to a earlier verison.
If you made a bootable clone you could, simply hold the option key and boot off the clone and reverse clone 10.8.4 back on.
Most commonly used backup methods
So since you can't go back, you can attempt to fix in place, provided it's not a OS X bug that has to be fixed.
..Step by Step to fix your Mac
Your likely going to need to do #8 and restore OS X over itself, any third party software that doesn't work, check for a update or problems on the developers forums BEFORE reinstalling it or your problems will most likely return.

An error has occured while downloading Mountain lion from app store

Since apple denied my purchsed proof, I don't really know what is going on? Maybe I claimed the copy late, I am ok with it then I puchased from App Store, but download failed? I keep trying on whatever solution here but not working at all, can anyone help?

Contact with iTunes support > http://www.apple.com/support/mac/app-store/contact
Message was edited by: mende1

New Mac Mini - How do i reinstall my copy of Mountain LIon from App Store?

Hi All:
I just bought a new Mac Mini running Mountain Lion. I want to clone an older system drive that had been running Snow Leopard onto my new Mini and then upgrade to Mountain Lion (I tried Migration Assistant first, but it didn't work correctly and I don't want to mess with it again).
My question: once I have a working Snow Leopard install on my Mini, is it possible to upgrade back to the Mountain Lion OS it came with without paying for a new copy? How do I do that?
Thanks!

It isn't just the hard drive - there is firmware built in that will prevent you from booting wih Snow Leopard. If you do a search here, you'll find many threads trying to install an earlier OS than what the machine came with all with the same answer (unless the Mac was built right around the time of a new OS being introduced, then it is possible to be booted from both OS's). In this case, you'd be trying to go backwards by 2 versions. Also see here:
http://support.apple.com/kb/HT2186?viewlocale=en_US
And yes, if you use internet recovery and first erase the drive (available in Disk Utility within the recovery partition) and then reinstall the OS, it'll reinstall the OS on a blank drive and you can start over. If the machine is new, then Command + R during restart should automatically boot into internet recovery (connecting you to Apple's servers by showing a spinning globe while connecting); if the machine is a bit older, then Command + Option + R will boot into internet recovery.

Downloaded Mountain Lion from App Store, but it says by disk is locked and won't let me choose the hard drive for installation

I'm struggling to get Mountain Lion installed on my machine, but what is worse is that it has essentially rendered my computer useless (and of course I need to use it urgently). After downloading and installing from the App Store, I have run into some significant problems.
On install, when prompted to "select the disk where you want to install OS X" the hard drive is greyed out and a message comes up that says "The disk is locked."
So when I back out of the install, I am given the option for Disk Utility, Reinstall OS X (same results as before) or Restore from Backup (not backed up).
On the Disk Utility, I can hit Verify Disk and it names an error and says to hit Repair Disk. The error is an "Invalid Sibling Link. The volume Macintost HD was found corrupt and needs to be repaired." Unfortunately, Repair Disk is greyed out and I can't hit it.
What I want to do is just forget the entire process at this point and scrap the upgrade until I have time to figure out what is going on. Is there a way to abort at this point?
Thanks for any help!

Your welcome!
You should always have and keep an up to date backup.
Sounds like you need something a little stronger than Disk Utility. At this point I have no way of knowing if Disk Warrior can or will help.
Depends..!
If you do format and install, then Yes it will.
If you reinstall OS X, then No it will not.
Problem is that according to the Disk Utility message, I don't think that you will be able to install either 10.6 or 10.8.
Those are very good questions. The only bad questions are the ones you have to ask yourself.

Cannot download os x mountain lion from app store

I need to install the original mountain lion that i had on my system. I do not have the downloaded software. I did originally purchase the software, but I cannot redownload the software from the appstore. I keep on getting an error after the download starts and stops after a few minutes. THIS IS EXTREMELY FRUSTRATING!!!! I need the software to install a fresh copy of the operating system on my iMac. I have attempted to download the software on 2 MacBookPros, and they both had the same error.

Again, what error message do you get? Did your sister purchase Mountain Lion with her Apple ID as well? You should be able to simply go to the Purchases tab in the Mac App Store and see "Download" to the far right of "OS X Mountain Lion":
Do you see this in the MAS? Do you see a Download button?
Clinton

Reinstalling mountain lion from App Store

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