Is it possible to downgrade to Mountain Lion on the 2013 Mac Pros?

Obviously came with Mavericks, but would like to know if it's possible to run 10.8.
Thanks!

mrala wrote:
While that is typically the case, I've noticed the new MacBook Air and Mac Mini will allow you to install Mountain Lion
That is because both models were released before Mavericks was available. Mountain Lion is their original OS.
The 2013 Mac Pro can not run anything lower than the custom build version of 10.9 it shipped with.

Similar Messages

Is it possible to downgrade to mountain lion with the help of a time machine backup after having updated to Mavericks?

Is it possible to downgrade to mountain lion with the help of a time machine backup after having updated to Mavericks?

Just to be clear, if by downgrade you mean uninstall, then the answer is technically, no.
You can't uninstall an OS. You can erase and re-install the old OS, but if you don't have a prior backup of your data, you'll lose it during the erase procedure.

Can't install my Mountain Lion again on my Mac Pro -- help please.

I can't install Mountain Lion again on my Mac Pro: got this message: This copy of the Install OS X Mountain Lion application can't be verified. It may have been corrupted or tampered with during downloading. Delete this copy of the application, and go to apple store ...

Well, the hard disk has been replaced and the Apple people replaced but innstalled the older OS (
X Lion 10.7)! So I tried to reinstall the newer OS which from App Store under Purchases but I had the problem I stated earlier: This copy of the Install OS X Mountain Lion application can't be verified. It may have been corrupted or tampered with during downloading. Delete this copy of the application, and go to apple store ... Hopefully, I can get this fixed! thanks!

Can I use Mountain Lion with my 2008 Mac Pro

I have a Mac Pro with the following system:
Model Family:
Mac Pro
Processor:
2.66GHz Xeon (Dual-core 5150)
Manufacturer:
Intel
# of CPUs:
2
Codename:
Woodcrest
Base Memory:
1GB PC2-5300 DIMM
Max Memory:
32GB
# Memory Slots:
8
Brand:
Apple
Wireless:
Optional
Color(s):
Aluminum
Original OS:
Mac OS X 10.4.7
Graphics:
NVIDIA GeForce 7300 GT (256MB)
Base Storage:
250GB 7200RPM SATA 3.5"
Optical Drive:
6x DL Superdrive
Model Number:
A1186
Sales Number(s):
MA356LL/A
Machine Number(s):
MacPro1,1
Dimensions:
20.1 in x 8.1 in x 18.7 in
Weight:
42.4 lb
Production:
Aug 7, 2006 - Jan 8, 2008
Factory:
Ireland
Production Year:
2007
Production Week:
02 (January)
Production Number:
2775
I am currently using CS3 and desperately need to upgrade to CS6, CS6 needs 10.6.8 or 10.7.
Do you think its possible to get Mountain Lion working with this computer or am I much better off upgrading completely to a new Mac,
Really appreciate all help,
Davod

You have the original Mac Pro. Just look at your chart for the production line dats and when yours was produced. It is not an early 2008 Mac Pro.
http://www.everymac.com/systems/apple/mac_pro/specs/mac-pro-quad-2.66-specs.html
So no to ML. Snow Leopard and Lion yes.

Can I reinstall Mountain Lion on the same Macbook Pro?

Hey All-
New OS X user, fresh from Windows.
I have an OS X 10.8 install dvd that I made after downloading the operating system through the App Store. On windows, it is necessary to activate a new OS installation each time you reformat the drive-- but supposedly you can install it on up to 3 separate systems and infinitely on those three systems.
Is more or less the same true of OS X 10.8? Should I be able to reinstall my OS on my macbook for whatever reason however many times I desire?
Thanks!
G

If you download Mountain Lion from the App Store then you may install it on as many computers as you own. There is no need for any activation procedure.

Is there any thing i can do to install mountain lion on my early mac pro

is there any thing i can do to be able to install mountain lion on my early mac pro

This is in no way official but you might like to have a look here:
http://forums.macrumors.com/showthread.php?t=1325709

HT1338 Has anyone successfully installed Windows XP Mode and Windows Virtual PC software inside Windows 7 Pro inside Parallels 8 inside Mountain Lion running on a Mac Pro built in 2013?

I wanted to ask if anyone using a Mac Pro running Mountain Lion, Parallels 8, and Windows 7 Pro could run XP Mode?
My experience has not been encouraging in that I progress to the end of the final mile, that is configuring XP Mode for first use, then an error message appears saying I should try again, that is I should attempt to configure XP Mode again for the first time use. An endless loop, with no visibility into the nature of my configuration failure.
I understand my problem is a narrowly focused, microsoft-centric issue, however, I would imagine this XP behavioral Mode running inside Windows 7 Pro is a common goal for many users, so I thought this question was reasonable to ask our group.
Please advise, and thank you.

Hello FatMac,
I wanted to let you know that your "requires a patch" feedback looked--at first--like the piece of the puzzle I was missing. Turned out, however, when I downloaded the 64 bit version of the patch, then attempted to install it under Windows 7 Pro, my installation was first searched, then my patch installation returned a message saying this patch was not applicable to my system. (BTW:my Windows 7 install is 64 bit) This failure to install surprised me because, based on an earlier evaluation for hardware virturalization support, my MacPro does not have virturalization hardware support. I mean, based on this no hardware support feedback, and based on the nature of this patch, it looked as if the patch should install and set my problem right.
Nevertheless, the patch won't install, and I don't know a way to query or coerce it. I'm approaching the point of diminishing returns with this problem. I have two applications (Adobe Illustrator 10 and Framemaker 7.0) which will run, but they don't behave properly, under Windows 7. BTW: I did make somewhat extensive use of the Windows compatibility tool early on, but nevertheless, FrameMaker 7 simply quits at the worst possible moment, and Illustrator 10 graphics are very often blank black areas where pallettes should be.
Thanks again for your thoughts and help. I believed we were heading down the right track, but for reasons not visible to me, (the user), the patch that should fix this problem will not install...
If there is any saving grace to this situation, my problem is repeatable. I mean, it's not on-again/off-again. When I attempt to configure XP Mode for its first use, the progress bar turns red at the final second, then complains that it could not complete its setup. Please Try Again recouts its final advice. (Famous words marking the beginning of an endless loop:-)
Were it not for Illustrator and FrameMaker, I would not have taken us down this dark road.
So long for now, and hope to talk to you all again soon...

Mountain Lion Very Slow on Mac Pro 3,1 (2008 model)

The Mac Pro 3,1 is supposed to support Mountain Lion, but when I run it, the GPU (ATI Radeon HD 2600 that came with it) makes a constant, loud fan noise as if it is working hard, and all of the graphics lag badly. I've installed all of the updates. Is there some driver problem between the Radeon HD 2600 and Mountain Lion? People on MacRumors said that it works fine on a Mac Pro 3,1 except for one guy who said it was really slow. Snow Leopard runs great on my machine.

First, back up all data immediately, as your boot drive might be failing.
There are a few other possible causes of generalized slow performance that you can rule out easily.
Reset the System Management Controller.
If you have many image or video files on the Desktop with preview icons, move them to another folder.
If applicable, uncheck all boxes in the iCloud preference pane.
Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.
Check your keychains in Keychain Access for excessively duplicated items.
Boot into Recovery mode, launch Disk Utility, and run Repair Disk.
Otherwise, take the steps below when you notice the problem.
Step 1
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.
Select the CPU tab of the Activity Monitor window.
Select All Processes from the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.
Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
Next, select the Disk Activity tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in and Writes out.)
Step 2
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Select the 50 or so most recent entries in the log. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long.

Mountain Lion install crash on Mac Pro

Hi,
Just started the install on my Early 2008 Mac Pro and it's completely crashed the system. The app downloaded fine and ran OK in 10.7 doing the setup and then tried to reboot. As soon as it rebooted I get a Kernel Panic and the 'Please Power Off your System'.
I've managed to get into Recovery Mode and am going to restore from Time Machine and try again but has anyone else had this?
There were no warnings or errors before the kernel panic at all.......
Thanks,

This worked for me....
Restart
During restart, hold Ctrl + Command + P + R to reset the PRAM
After this, the computer will flash and reboot again and should boot into the Mountain Lion Installer.
Good luck.

Why is mountain lion incompatible with my mac pro?

The app store says that Mountain Lion is incompatible. Not sure why. I have 2 x 2.66 GHz Dual Core Intel Xeon processors. I have 8 GB of memory free and over 800 GB of storage free. Can someone explain?
Thanks,
Jim

Paul Kahn wrote:
Mine doesnt show what month / year it built. How can I find it?
If you're running Lion, it should, where my iMac shows it's an early 2009 design:
But a Mac Pro 1,1 is probably an August, 2006 model. I don't find an article that connects the model number to build period for Mac Pros, but plug your serial number into this site. It should show it.

Why is Mountain Lion not available for Mac Pro 2007???

Why is Mountain Lion not available for Macpro 2007 eventhough this computer is not having old generation hardware like of 15years ago's computers!! I am surprised to know about that. when this mac pro have 2 xeon processor, 8GB ram, OS 10.7.5 (Lion) etc etc. so why is this not compatible for mountain lion???
Very Sad for us - the buyer of so costly Macpro ....
so does the Apple want to say we should buy or upgrade our purchased costly apple products every 5 years ??!!

This is a user forum. We are all users like yourself. Conjecture about Apple's products is not appropriate discussion in these forums.

Upgrading to os mountain lion without the App Store

Hello, is it possible to upgrade to mountain lion without the App Store? Our iMac is 10.5.8 is it possible to buy a disk from an apple store to upgrade?

1. Not directly. The installer must be downloaded from the Mac App Store and run on Mac OS X 10.6.8 or newer, including an external drive with a bootable OS on it. It also can't upgrade a 10.5.8 or earlier system.
2. No.
(83554)

Thinking of upgrading to Yosemite - but want to be able to downgrade to mountain lion - How?

Thinking of upgrading to Yosemite - but want to be able to downgrade to mountain lion - How?
Hi all.
I am wondering if I upgrade to Yosemite is there a way that I will be able to downgrade / revert back to mountain lion if I find out that too many of my most essential applications are no longer working?
I have read there have been compatibility issues between some of my most necessary / favourite applications I use in mountain lion and Mavericks, which is why I never upgraded to Mavericks.
However , I am noticing in the app store there are a lot of apps I am interested in which I no longer able to purchase / download because they require Yosemite, and mountain lion is out-dated.
However, if I upgrade my OS, I am afraid of incompatibility with the most important apps in my workflow though.
Thanks.

Hi Arthur thank you very much for your response.
Sorry for my late reply.
My following question is summed up in the last sentence of this post.
[is only one time machine backup possible per external backup hard drive? Or can I make separate Time Machine backups for separate purposes?]
I went ahead and installed Yosemite.
There are some things I like about Yosemite and I might trial it for a little bit longer,
but after a couple of days of trials and trying out, I've decided that I think I generally prefer mountain lion better,
and I will reinstall it , and get a disk image of Yosemite and run that as a Virtual Machine when I need it.
[^ This is what I should have done in the first place.]
Before I installed Yosemite I [stupidly] used Time machine to back up only my application folders / application support / general system files,
[I used system preferences to exclude everything else in the TM backup] so that I would not have to reinstall my applications / essential system structures.
I did not back up the rest of my files and folders / whole machine though.
I should have done this.
I just didn't want to wait for about 800 gb of data to transfer [impatient].
[in retrospect I should have run Yosemite through a virtual machine within Mountain Lion to see if I liked it before installing it completely].
With Yosemite installed would I be able to make a SEPARATE time machine backup of all my files / documents / media folders in Time Machine on Yosemite, and use this to re-install these on Mountain lion if I downgrade ?
Or is only one time machine backup possible per external backup hard drive ?
Thanks.

Mid 2010 Macbook Pro (7,1) - Downgrading from Mountain Lion (10.8.3) to Snow Leopard

Hi everyone!
I am looking for some help with downgrading my macbook pro from ML back down to SL. I'll start off with some information about my case:
I bought this computer mid 2010 - I believe in July, if that matters. It is a Macbook Pro 7,1 model. The computer came with two disks, one being the Snow Leopard 10.6.3 install dvd, and the other being the applications install dvd. I do still have these dvd's, sitting beside me as I type this. Just like many others, I upgraded my computer to Lion, and from there went to Mountain Lion. I have been on Mountain Lion for several months now, currently running 10.8.3. I know a lot of you out there are disappointed with this OS, and many have experienced significant adverse effects on the overall performance of their computer. That being said, I also know that a lot of you have not had these sorts of issues running the OS. As you can tell, I mysef fall into the first category, as I have not had the greatest experience with it. It just seems to tire out my computer at activity levels which, on Snow Leopard, would not be problematic. I say tire out here in that my computer will overheat, slow down, and even sometimes crash (the crashes primarily begin with the spinning rainbow wheel, attempts to quit / force quit the applications I am running, followed by complete and utter frozenness). When this happens, I have no choice but to press the power button until the computer shuts off, then I restart, occasioanlly taking multiple attempts because of kernel panics the first one or two times. Who knows why this happens...I upgraded my RAM a couple months ago from 4GB to 8GB, which has seemed to help some but not fix the problem entirely. So, I have been wanting to downgrade back to Snow Leopard.
Ok so, I have made multiple attempts at this. For starters, I can tell you that the computer simply will not boot from the Install DVD (it is the one which came with the computer, not a retail version or anything like that). Additionaly, I cannot restore the SL DMG file from the dvd, neither to my hard drive nor to a USB drive. Because of this, I ended up trying this: I downloaded the snow leopard installation files (I believe just the content of the DVD ripped from the disc) via a torrent. I then got a 16 GB USB flash drive, wiped and formatted it (Mac OS Extended (Journaled)), and copied to the USB drive the install file I downloaded. I'll also note that I have done the same thing for Mountain Lion, copying the install file from the app store to a separate 16 GB USB drive. Ok, onto the results of my attempts at downgrading:
Each time I have tried to downgrade, I have taken the following step:
1) Power down the computer
2) Insert Snow Leopard USB drive
3) Boot up the computer, holding the option/alt key
4) Selecting the Snow Leopard USB drive
     -It would successfully boot from the USB, and would bring me to the language selection window, as expected
5) After selecting English, the window gives me the option to continue with the install, or access any utilities, and I would go to Disk Utility
6) I selected the internal drive in Disk Utility (the whole drive, not the indented partition), and I went to the partition tab, partitioning the drive to have 1 partition, Mac OS Extended (Journaled), erasing the current partition
     **Note: I have not tried this, but I feel like maybe If I were to first Erase the drive, opting to zero out all data (1 pass) in the security options, then partition the drive the same way as I did in step 6, perhaps the installation would go smoothly without returning any errors...thoughts?
7) After step 6, I would return to the install os x window and begin installation of snow leopard.
     -Every time I have done this, the install has returned an error about mid-way through, and I would be prompted to restart and try installing again
8) Now having a non-booting computer, I would end up powering down, swapping out the snow leopard usb with my mountain lion usb, booting from that, partitioning the drive the same way as before, and reinstalling mountain lion
     -This beings me back to square 1. A working, booting computer on Mountain Lion...
I believe that my issues surrounding the use of my install dvd (that came with the computer) are caused by a bad optical drive. When in mountain lion, if I insert the dvd, it will read it, but it will do so very slowly. For example, after inserting the dvd and the install os x window coming up, if I select optional installs or instructions, each of these folders would open, but take a very long time to display their contents. It also is a struggle to get the disc to eject in this situation.
So, if anyone has had a similar situation and came out on top, I would truly appreciate your help!
Thanks guys,
Nick

http://www.youtube.com/watch?v=QaDMbmsRqkQ

Is it possible ro clean install Mountain Lion over Mavericks on a brand new mac mini

Is it possible to "clean Install" mountain lion over mavericks on a brand new mac mini

Actually evrything I can find states that the last mini to run SL was 2010.
It appears that the 2012 mini's shipped with Mountain Lion and later Mavericks. Link
Also why would the OP need a bootable SL installation media when they want to install ML?

Is it possible to downgrade to Mountain Lion on the 2013 Mac Pros?

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