Downloading but not installing Mountain Lion?

I have a MacBook Pro with Retina display purchased since June 11 so I qualify for the free upgrade to Mountain Lion. I understand that I have 30 days to get the software for free once it is released. On the other hand, I would like to wait before installing the software until 10.8.1 or 10.8.2 are released to let some of the bugs be ironed out first. Is it possible to download ML but not install it (within the 30 day period)?

I would do as stated above except that I would set the install location to an external drive and then when the download finishes disconnect the external.
The reason for this is you may not have the option to NOT reboot the system after the download finishes. And even if you do have that option at the time the download finishes the next time the system reboots it may be set, in the EFI system or through some command placed on the hard rive, to start the install automatically.
At this time no one really knows how Mountain Lion will react when downloaded from the Mac App Store.
Also putting the download on an external drive allows to to actually install it to that external and run it from there to check it out before you do the install on your internal drive.

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How to download but not install OSX Mountain Lion on Mavericks

Hi all
I would like to download but not install OSX Mountain Lion on my MBP which is currently running OSX Mavericks.
This however seems impossible. I think OSX Mavericks were already installed on my MBP and therefore it seems "impossible" to download it.
Now, why would I to do this? The answer is quite reasonable, due to certain demands related to an application portfolio I need Mountain Lion, because the portfolio is not upgraded to run on Mavericks. And, it is more reasonable to downgrade a version of OSX, rather waiting for the portfolio upgrade which can take years.
Yes, I need to downgrade my secondary MBP which also came with preinstalled Mavericks. This can be done, if I only could download but not install Moutain Lion.
It should be easy enough; download Mountain Lion, make an installer and make a bootable thumb usb stick. Then erase Mavericks and install Mountain Lion.
I have previously bought Mountain Lion so it is accessible to me in the App Store, but whenever I try to hit the Download button, I get a message saying this can't be done, since I am running Mavericks.
This bugs me, it should be obvious users needs the flexibility to swap whatever OSX version they need. It is still software.
So, how can I download but not install Mountain Lion on my newer MBP that came with preinstalled Mavericks?
I would like to see answers like:
"In order to get this to work, you first have to disable the locking mechanism in [...] " instead of "No, this is impossible to do"
Regards

Thanks for your reply Eric
Can't help wondering thought, people are ok with this?
Basically Apple are saying: "Do not attempt to install an older version of OSX which came preinstalled. If so, expect multiple failures." Really?! Has it always been so? For me it's not like I'm going to install Snow Leopard on my Late 2013 Retina MBP, but I would expect some form of backward compatibility between the previous version and it successor. Apparently this is not possible, and how is this even acceptable?
Personally, I am not going to downgrade, as if I had a choice, but I would and I expected however, the possibility to at least download the previous OSX version. What do you do if you have bought several applications, not necessarily online from App Store and buy yourself a new Mac with preinstalled Mavericks and after installing your "old" applications they fail to work properly? What do you do since downgrading apparently is not an option. So... again, what do you do?
If you don't have friends with an older Mac, you could be facing serious problems. And I'm not talking about gaming, but serious business.
I find this quite disturbing actually, and please tell me it's not so. There gotta be a way to do this?
I simply want to download the OS but I expect some registry values (like windows' registry) keeps preventing this.
It should be possible to simply download and not download and install in one operation, shouldn't it?
Regards

I have OS X 10.5.8 and I want to upgrade, but not to Mountain Lion.

I have OS X 10.5.8 and I want to upgrade, but not to Mountain Lion. How do I upgrade to Leopard or snow leopard?

Upgrade Paths to Snow Leopard, Lion, and/or Mountain Lion
You can upgrade to Mountain Lion from Lion or directly from Snow Leopard. Mountain Lion can be downloaded from the Mac App Store for $19.99. To access the App Store you must have Snow Leopard 10.6.6 or later installed.
Upgrading to Snow Leopard
You can purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard — Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.
After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mountain Lion if your computer meets the requirements.
     Snow Leopard General Requirements
       1. Mac computer with an Intel processor
       2. 1GB of memory
       3. 5GB of available disk space
       4. DVD drive for installation
       5. Some features require a compatible Internet service provider;
           fees may apply.
       6. Some features require Apple’s iCloud services; fees and
           terms apply.
Upgrading to Lion
If your computer does not meet the requirements to install Mountain Lion, it may still meet the requirements to install Lion.
You can purchase Lion by contacting Customer Service: Contacting Apple for support and service — this includes international calling numbers. The cost is $19.99 (as it was before) plus tax. It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.
     Lion System Requirements
       1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,
           or Xeon processor
       2. 2GB of memory
       3. OS X v10.6.6 or later (v10.6.8 recommended)
       4. 7GB of available space
       5. Some features require an Apple ID; terms apply.
Upgrading to Mountain Lion
To upgrade to Mountain Lion you must have Snow Leopard 10.6.8 or Lion installed. Purchase and download Mountain Lion from the App Store. Sign in using your Apple ID. Mountain Lion is $19.99 plus tax. The file is quite large, over 4 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
     OS X Mountain Lion — System Requirements
       Macs that can be upgraded to OS X Mountain Lion
         1. iMac (Mid 2007 or newer) — Model Identifier 7,1 or later
         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) —
             Model Identifier 5,1 or later
         3. MacBook Pro (Mid/Late 2007 or newer) — Model Identifier 3,1 or later
         4. MacBook Air (Late 2008 or newer) — Model Identifier 2,1 or later
         5. Mac mini (Early 2009 or newer) — Model Identifier 3,1 or later
         6. Mac Pro (Early 2008 or newer) — Model Identifier 3,1 or later
         7. Xserve (Early 2009) — Model Identifier 3,1 or later
To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
Are my applications compatible?
         See App Compatibility Table — RoaringApps.
     For a complete How-To introduction from Apple see Upgrade to OS X Mountain Lion.

MacKeeper downloaded but not installed. Can't drag it to Trash so how do I get rid of it?

MacKeeper downloaded but not installed. Can't drag it to Trash so how do I get rid of it from my computer?
Problem solved by reviewing FAQ's. Many thanks for those who viewed my question.
Message was edited by: Mifti

Hi Thomas, I was trying to drag it from the Launch Pad where it just bounced back again. Have now solved it by dragging it from the Application.
Thanks.

Could not install mountain lion We could not complete your purchase. OS X Mountain Lion is not compatible with this computer. I'm running the latest update 10.6.8

could not install mountain lion We could not complete your purchase. OS X Mountain Lion is not compatible with this computer. I'm running the latest update 10.6.8. Any help to overcome this issue will be great

rarramirez wrote:
Any help to overcome this issue will be great
There is nothing to overcome, your mac is too old to run Mountain Lion. For an iMac it must be a (Mid 2007 or newer) http://www.apple.com/osx/specs/

Why will the iOS 7 download but not install?

why will the iOS 7 download but not install?

IOS 7 stinks wrote:
I made the mistake go read the internet
It would take a very long time to read the entire Internet. There are billions of pages.

ML has downloaded but not installed.

ML had downloaded but not installed. . On the launchpad it says installing, but on the app store it says waiting. Its been doing this for 3 hours. what do i do?

It hasn't finished DLing until the MAS's progress bar is full and an install window pops up.

HT201210 My download for iOS 7 was interrupted, it has downloaded but not installed. it goes through routine Terms & Agreements and everything, but when i try to update it tries to verify the update then says that the update is not available.

I dont understand, when i try to update it will go through routine apple stuff, then it it will say " Software Update Unavailable (under) Software Update is not available at this time. Try again later." The thing is that i was downloading it and my wi-fi had restarted for some unknown reason and it downloaded onto my phone but not installed. and at the moment it is really bothering me because I have waited a long time for iOS 7 and I am not being allowed to update my phone to it and i just wanted to know how to fix it. Thank you.

I imagine a ton of people are attempting to download it right now. Simple patience, maybe keep trying, and if possible, try a little later. Think of it as all those people lining up at Apple Stores + about a million more.

Mountain Lion downloaded, but not installed.

I recently download Mountain Lion, but when the download finished, I recieved an error message saying "Product could not be installed. Check your internet connection." My internet connection was actually working fine. I would like to try and download again, but that would mean paying again, and I don't want to do that if I don't know for sure if it's going to work.

Check that your computer is compatible with Mountain Lion.
To check the model number hold down the option/alt key, go to the Apple menu and select System Information.
Mac Pro (Early 2008 or newer) model number 3,1 or higher
Your Mac needs:
OS X v10.6.8 or OS X Lion already installed
2 GB or more of memory (More is better)
8 GB or more of available space

Lion OS Downloaded but Not Installed???

Downloaded Lion OS to MacPro. Rec'd install prompt, agreed to terms and hit install/continue. It was not installed. How do I find it to install again. App store says downloaded and no option to re-download. I had/have OS 10.6.8 installed.

How do you know it isn't installed? Select About This Mac from the Apple Menu. What OS version is displayed?
If the installer wasn't deleted then you will find it in the Applications folder.

Can not installed mountain lion msg" macintosh hd is using for time machine back up" please help

I downloaded mountain lion but can not install, msg" macintosh HD is using for time machine back up , how can I change that...thanks

Somehow, a Backups.backupdb folder got created on your startup drive.
You won't find it via a Spotlight or Finder search, so open your internal HD via the Finder.
That folder is at the top level. Just delete it.

HT1338 Mac App Store will not install Mountain Lion update

I am having an issue where I try to install the 10.8.4 update from the Mac App Store. I click on the button and it says it needs to restart to install. I tell it to restart and install but it does nothing. I get the Mac App store back with it asking me to install the update again. Looking at the infobox I see that I am still on 10.8.3.
Any thoughts on how to fix this?
Thanks

Give this a try:
Repair the Hard Drive and Permissions - Lion/Mountain Lion
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.
After this is completed download and install 10.8.4 Mountain Lion Update v10.8.4 (Combo).

White iMac (6.1) 24inch will not install mountain lion

I have a white 24 inch iMac (6.1) 2.33 Ghz intel core 2 duo, I purchased it just before the silver ones came out, don't remember when exactly but its not compatible with Mountain Lion.
I find it very hard to believe that its obsolete so quick, I have the floating lamp iMac (best design) , G5 20 inch iMac and looks like this one is now joining them in the basement.

Per Kappy:
Upgrading to Mountain Lion
To upgrade to Mountain Lion you must have Snow Leopard 10.6.8 or Lion installed. Purchase and download Mountain Lion from the App Store. Sign in using your Apple ID. Mountain Lion is $19.99 plus tax. The file is quite large, over 4 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
     OS X Mountain Lion - System Requirements
       Macs that can be upgraded to OS X Mountain Lion
         1. iMac (Mid 2007 or newer)
         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer)
         3. MacBook Pro (Mid/Late 2007 or newer)
         4. MacBook Air (Late 2008 or newer)
         5. Mac mini (Early 2009 or newer)
         6. Mac Pro (Early 2008 or newer)
         7. Xserve (Early 2009)
     Are my applications compatible?
         See App Compatibility Table - RoaringApps.
     Am I eligible for the free upgrade?
         See Apple - Free OS X Mountain Lion upgrade Program.
     For a complete How-To introduction from Apple see Upgrade to OS X Mountain Lion.
You have a 2006 model iMac.

Macbook pro late 2011 Not installing Mountain Lion

How do you boot from mountain lion installaion Because now it's just opening in lion rather than on startup?

I have already installed it from the mac app store, i open it from the launchpad but it does not open in a boot kind of mode, it only opens as if it's an app.

OS X software update will download but not install

I am using a MacBook Air, and am informed that a Software Update is available. 7 items - 1.63 GB are downloaded. The computer begins writing files, then the following message appears: "None of the selected updates could be installed. An unexpected error occurred." What can I do?

This usually means a corrupted OS X installation, so I would try reinstalling OS X:
Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Try the updates after you have reinstalled OS X.

Downloading but not installing Mountain Lion?

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