Problem installing OSX Mountain Lion on MacPro

Hi,
i'm trying to install the new OSX on my macpro but it fails when should reboot for install...
I'm starting from the latest Snow Leopard version and the MacPro isa a MacPro4,1 Quad-Core Intel Xeon 2.26Ghz.
I have already installed on my macbookpro without any problem...
I'm now redownloading the Mountain Lion but it seem not to be my problem...
any ideas?
thx a lot

1. Open Finder, go to these folders and delete the content:
/Library/Caches
~/Library/Caches
2. Open Disk Utility and repair permissions
3. See if your applications are supported > http://www.roaringapps.com
4. Press Shift key in boot and install
5. Create an external drive for install Mountain Lion > http://arstechnica.com/apple/2012/07/how-to-create-a-bootable-backup-mountain-li on-install-disk/

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Can somebody please advise urgently... I backed up my entire hard-drive of my macbook pro - just prior to installing osx mountain lion. I put everything into a folder on my desktop - then backed it up onto an external drive. Once this was done - i deleted

Can somebody please advise urgently...
I backed up my entire hard-drive of my macbook pro - just prior to installing osx mountain lion.
I put everything into a folder on my desktop - then backed it up onto an external drive. Once this was done - i deleted the folder off my desktop - and following this - things started to go all weird...pages hanging, the coloured 'wheel of death' appeared for ages. So i had to employ a 'hard-boot' restart - as i had not other options.
I'm pretty sure i made copies of of files/apps/folders etc - however not so sure now as i cant even start up my laptop!!!
Can somebosy please help me urgently??!!!

Got the exact same problem, and I also did this operation many times before, from 500Gb to 750Gb, and then from 750Gb to 1 Gb. Not My HD got a little such complaining about bad sectors when in windows bootcamp, but still runs fine though.
So I bought a new 1Gb drive exactly same drive as the one thats getting sick. I did the clone thing, with super duper, CCC, DU, but no matter it will not boot when i move the new drive inside the macbook…….**** thing exuse me, but wasted so much time.
Now I get this strange feeling that something must have changed in the macbook itself. Just wondering if this could be a EFI "mac bios" prevention thing, they made just to sell more new computers, when you can't improve or fix your old one.
If so, then its pretty scary. If not then I simply can't figure out why this suddenly becomes a problem for so many people, as I see so many posts about this!!
BR Pete

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 am trying make a flash drive bootable so i can install OSX Mountain lion it BUT it has MBR partition on it how can i remove this partition

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Regards
Warren

Drive Preparation
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.

I have a mac pro 1,1. I would like to know if its possible for me to upgrade the parts to where i can install osx mountain lion, or osx mavericks?

I have a mac pro 1,1. I would like to know if its possible for me to upgrade the parts to where i can install osx mountain lion, or osx mavericks? I am currently adding more ram so it will have 32gb of ram, i have 2 250gb HDD but adding a 250gb SSD , and have a ATI Radeon HD 4870 512mb that i will most likely upgrade to an ATi Radeon HD 5570 1gb.

The SSD will boot fast, but the real change is launching 10 programs in 10 seconds and being able to use them. (20 seconds for a few big suites).
I would not add or upgrade to 32GB RAM. You can get 8 x 2GB for $100 on Amazon.
Those 250GB HDD are "old" and slow and overdue to be replaced, reformat and use t o backup the system.
Samsung 250GB SSD is down to $150 or so on Amazon also.
The 5770 is gone, hard to find, EOL and over charged for when you do find one.
you could look into how to use a PC 6870 or others.
Or, you could hold out and wait for a refresh of Mac-Mini which can be just as fast or faster and run Mavericks.

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i guess you could put the aiport utility app on your iphone, click on the aiport express there, it will show you how many devices are connected to it and the mac addresses of those devices.

After installing OSX Mountain Lion I can no longer add attachments of any kind to my e-mails.

After installing OSX Mountain Lion I can no longer add attachments of any kind to my e-mails.

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Is there any way to install OSX Mountain Lion to a MacBook Late 2007

hey i was just wondering is there was any way to install OSX mountain lion to a macbook late 2007. ive gottan it before to point where i was about to boot up into the software but on the boot screen i got a stop sign. please help me if you can. thank you

i just ran the follw=owing command on mac
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and the resond i got was
"firmware-abi" = <"EFI64">
so what does this mean

Can't install OSX Mountain Lion, on the disk selection screen i cant select the Macintosh HD to install OSX giving a message (This disk cannot be used to start up your computer).

Can't install OSX Mountain Lion, on the disk selection screen i cant select the Macintosh HD to install OSX giving a message (This disk cannot be used to start up your computer).

Read
https://discussions.apple.com/message/15659267#15659267

Can't install OSX Mountain Lion, on the disk selection screen i cant select the Macintosh HD to install OSX giving a message (This disk cannot be used to start up your computer).only have one disk to select and my partition map scheme is GUID partition

just bough OSX Mountain Lion, my laptop operating with v10.6.8. Can't install OSX Mountain Lion, on the disk selection screen i cant select the Macintosh HD to install OSX giving a message (This disk cannot be used to start up your computer).only have one disk to select and my partition map scheme is GUID partition table. 24.44gb disk available.

Verify your computer can run Mountain Lion:
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.
Open Disk Utility and verify the drive is partitioned using GUID and formatted Mac OS Extended, Journaled. If it is then do this:
Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. 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 installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
Now try installing Mountain Lion.

I've a macbook black middle 2007, can i install osx mountain lion?

I've a macbook black middle 2007, can i install osx mountain lion?

I'm afraid not > Apple - Upgrade your Mac to OS X Mountain Lion.
Must be a MacBook (Late 2008 Aluminum, or Early 2009 or newer)

I have a iMac 20 intel/512 mb from 2007 .i want to instal OSX Mountain Lion, but i have a OSX 10.4.1. I need minimal OSX 10.6.8 or more! Wat i have to do?

I have a iMac 20 intel/512 mb from 2007 .i want to instal OSX Mountain Lion, but i have a OSX 10.4.1. I need minimal OSX 10.6.8 or more! What i have to do?
Processor 2 GHz Core Duo. 2 GB 667 Mhz DDR2 .

Macs that can be upgraded to OS X Mountain Lion
iMac (Mid 2007 or newer)
MacBook (Late 2008 Aluminum, or Early 2009 or newer)
MacBook Pro (Mid/Late 2007 or newer)
MacBook Air (Late 2008 or newer)
Mac mini (Early 2009 or newer)
Mac Pro (Early 2008 or newer)
Xserve (Early 2009)
If yours is truly a Core Duo then it cannot run Mountain Lion. Snow Leopard is the latest you can install.
If you need to purchase Snow Leopard contact Customer Service: Contacting Apple for support and service. The price is $29.00 plus tax. You will receive physical media - DVD - by mail.
Third-party sources for Snow Leopard are:
Snow Leopard from Amazon.com
Snow Leopard from eBay
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.

HT1338 I have installed osx mountain lion, it worked great for past months but recently, my mac takes lots of time to startup and sometimes gets stuck.. what should i do??

I have installed osx mountain lion, it worked great for past months but recently, my mac takes lots of time to startup and sometimes gets stuck.. what should i do??

Repair Disk
Steps 2 through 8
http://support.apple.com/kb/PH5836
System Preferences > Startup Disk
Select your Startup Disk

Help. I accidentally formatted by the device name not the volume name when trying fresh install osx Mountain lion.

I was trying to do a fresh instal of Mountain Lion. By fresh I mean clean.
Firstly, my iMac disc drive isn't really working to well, so I have Mountain Lion on a usb.
I started up and held the option key.
Entered into disc utility mode, and started doing everything correct.
Then near at the end I when i'm required to select a start up disc it doesnt show anything... Help?
I checked around online and saw this tutorially and notice I had done something different.
http://macs.about.com/od/MountainLion/ss/How-To-Perform-A-Clean-Install-Of-Os-X- Mountain-Lion-On-A-Startup-Drive.htm
on page 2. where it says
When Disk Utility opens, select your Mac's startup volume from the list of devices. If you never changed its name, the startup volume will be listed as Macintosh HD. Be sure to select the volume name and not the device name, which will usually be the name of the physical drive, for instance, "500 GB WDC WD5."
I think I may have selected the device name. Is this the cause of my problem?
Can I fix this ? Please help?
I live in Auckland in New Zealand, I don't have any apple stores here

Ok, I realized that won't work, I don't think, because you can't enable it on your Mac.
However, if you have another Mac, you can use Firewire Target Disk Mode to install. Boot your Mac while holding down the T key. You will see a FireWire symbol on the screen. Then, connect the two with a Firewire cable. Your Mac hard drive will show up on the other. Try to install onto that.
This may not work, depending on the other Mac. If it is similar to yours, it should.
I'm not sure if you can do it the other way. If you put the DVD into the other Mac and boot it into Target Disk Mode, then boot yours holding down the option key, you may be able to select the DVD on the other Mac as the startup.
This very old article seems to indicate it will work: http://lowendmac.com/misc/06/0914.html
Remote Disc Instructions:
Here is Apple's info: http://support.apple.com/kb/HT5287
Here is now to enable seeing the Remote Disc on your Mac: http://hints.macworld.com/article.php?story=2009012605560521

I've installed OSX Mountain Lion 10.8.2 and some Apple Apps installed unespectedly close even before they are opened. This affects Mac App Store, Mail and several other apps

I installed OSX 10.8.2 just yesterday night (12-27-2012) and every time I attempt to open some of the Apple Apps, such as Mac App Store, Notes and Messages, among others, they don't mount at all and a failure message appears on the screen instead. No matter how many times I try to open those apps, they won't open at all and the same message appears again and again. Is there a solution for this or should I reinstall the OSX Mountain Lion in order to solve this issue?

Marcus --
What is the error message exactly?

Problem installing OSX Mountain Lion on MacPro

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