Mountain Lion installation problem?

Hi, so I have a mid-2012 MacBook Pro and im installing Mountain Lion. I've gotten to the part where the screen shows that it's installing on Macintosh HD with the estimated time. The problem being that it says I am at "About -15 minutes" and it continues to count down. What should I do??

Give it some time. This is an error with the installer. For me, it went down to -20, I think it was trying to find the right disc to install on, but I am not entirely sure or the least bit confident in that answer. If you want, go to Window>Show Log and that will open the install log. You can see what is going on, and some of those messages may give you a clue as to what it is trying to do. If you let it set for some time, it should jump back up to something like 20 minutes remaining and then continue normally.

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Prevent Mountain Lions Installer Automatic Delete

I want to do a clean reinstall of Mountain Lion on my MacBook. I recently learned how to do it, yippee! However, in following the instructions that supposedly an 8 year old could follow, I hit a brick wall. I could not find the application/installer. I searched and searched banging my head in frustration. Then I discoverd that, after download, it is automatically deleted. Anyway, I apparently need to re-download the app from the app store. Is it that simple first? Second, how do I ensure it is not automatically deleted upon download. I hope that makes sense. It is my intent to first, make my current MacBook Pro back to original settings. Second, it is my intent to create a boot disk with a flash drive to install Mountain Lion on two other MacBooks (it is my understanding I can use it on up to 5 of my machines). Thanks in advance.

BigSky13 wrote:
Anyway, I apparently need to re-download the app from the app store. Is it that simple first?
Correct. As you purchased it in the past, you can download it as many times as you want for free, from App Store or starting into Recovery (pressing Command and R keys while your Mac is starting). If you want to download the installer, you have to download Mountain Lion from the App Store.
BigSky13 wrote:
Second, how do I ensure it is not automatically deleted upon download. I hope that makes sense. It is my intent to first, make my current MacBook Pro back to original settings.
It's only deleted when you upgrade OS X, but if you download the OS X Mountain Lion installer and you don't install it, you won't get it deleted
BigSky13 wrote:
Second, it is my intent to create a boot disk with a flash drive to install Mountain Lion on two other MacBooks (it is my understanding I can use it on up to 5 of my machines). Thanks in advance.
To do it, first download OS X Mountain Lion from the App Store. Then, use Lion Diskmaker to create the USB drive with Mountain Lion > http://liondiskmaker.com
You can upgrade to OS X Mountain Lion all your Macs without any problem, so you don't have to worry about paying OS X Mountain Lion again to install it in your other Macintoshes

HT1338 Mountain Lion installation was interrupted - can't restart the download.

My Mountain Lion installation was interrupted. Now, when I try to download, it won't do it. After clicking "Download" it pauses for a moment, and then nothing happens.
Any suggestions? Thanks!
- Jeff T

The server is too busy and your connection timed out with the server. Try doing this at night because there is less traffic.

Can't boot Mountain Lion installer on a machine that already has Mavericks installed

I have upgraded my Mac mini 2012 to Mavericks, and everything is running quite well. However, I need to also run Mountain Lion (a piece of hardware I need to use is not Mavericks compatible.)
I am attempting to install Mountain Lion on a 2nd partition on my Mini's internal hard drive by following the following steps:
* used Disk Utility to repartition my mini's internal drive, creating a 100 GB partition to install Mountain Lion on
* used DiskMakerX to create a Mountain Lion bootable USB key
* rebooted machine while holding down Option
At this point the boot menu appears and I see icons for both my Mavericks partition, as well as the Mountain Lion installer USB key. However when I select the USB key and try to boot from it, it does not boot; instead I get a gray screen with the universal "no" symbol (circle with a slash through it) on it.
I tested the USB key on another Mac and it booted fine, so there is nothing wrong with the USB key I made. So it would seem that the Mountain Lion installer will refuse to run on a computer if it has a newer OS on it, even if the computer has a free partition (or drive) to install on to.
Is there any way around this restriction?

Hi,
to calm your nerves: on my computer I have CS3 and CS4, and I work with both versions, but of course, I never use them at the same time. First, I had CS3, CS4 I installed later.
All the keyboard short cuts, like yours work free from defects.
Hahns-G.

Mountain Lion installer will not let me choose my Lion Partition as an install location

Mountain Lion installer will not let me choose my Lion Partition as an install location.
Any ideas why?

Again, why will the Mountain Lion installer not allow me to select my Lion partition as the location for the install?
Good question. That's the main way it's supposed to be installed. You shouldn't even need to choose a partition. You purchase Mountain Lion through the App Store, it downloads to the Applications folder and automatically begins the installation on the drive where Lion or Snow Leopard resides as soon as the download is complete.

Need help with Os X Mountain Lion Installation

I have a Macbook Pro (early 2011) 2.3Ghz and Everytime I boot up my macbook this Os X Mountain Lion screen pop up but when I try to install it. A message pop up saying ‘"temperaly unavailable try again ‘later" and sometimes "please contact apple care". I need help getting pass this installation so I can start using My macbook pro. Can someone help me?

Have you downloaded the Mountain Lion installer from the App Store? It is a stand alone application.

After a long in "stop" period, the internet connection (ethernet) doesn't work. before updating to mountain lion this problem didn't exist.

after a long in "stop" period, the internet connection (ethernet) doesn't work. before updating to mountain lion this problem didn't exist.

Gave up on the GUI. This script derived from http://blog.netnerds.net/2012/07/os-x-how-to-setup-nat-on-lion-and-mountain-lion / seems to work for me:
gwdev=en0 # This is my WiFi connection (has Internet connection)
targetdev=en1 # This is the USB to Ethernet adapter (to give Internet connection)
/sbin/ifconfig $targetdev down
/sbin/ifconfig bridge0 create
/sbin/ifconfig bridge0 up
/sbin/ifconfig bridge0 addm $gwdev
/sbin/ifconfig bridge0 $HOST_ADDR
/sbin/route add default -interface bridge0 -ifscope bridge0 -cloning
/usr/sbin/sysctl -w net.inet.ip.forwarding=1
/sbin/ipfw add 100 divert natd ip from any to any via $gwdev
/usr/sbin/natd -interface $gwdev -use_sockets -same_ports -unregistered_only -dynamic -clamp_mss -enable_natportmap -natportmap_interface $targetdev

Where can I find my mountain lion installer included with 2012 mac mini

I just bought a 2012 mac mini and I want to install mountain lion on an SSD that I bought separately. Where can I find the mountain lion installer file to create a bootable USB install drive? When I go to the mac app store, mountain lion is not listed in my purchases and when I try to buy it, it says "We could not complete your purchase. OS X Mountain Lion is not compatible with this computer." It's already installed on the mac mini, I just need the installer file so I can install it on my SSD.

keg55 wrote:
You might be able to simply boot into the ML Recovery HD, select Reinstall OS X and point to your SSD drive. You won't capture the InstallESD.dmg file to create a USB thumb drive installer.
OR.... to create a USB thumb drive of your pre installed ML, you would need to redownload Mountain Lion then grab the InstallESD.dmg file and create your USB thumb drive.Here is how I've done it using Internet Recovery to get my pre installed OS X.
Attach a USB external drive to your system. Formated as Mac OS Extended (Journal) and GUID partition table.
Restart using Command+R+Option to boot into Apple's Recovery HD. This will get you the original version. Or just Command+R to boot into your ML Recovery HD.
Select Reinstall OS X from the OS X Utilities menu.
You will have to watch the download. After it completes and your system restarts, at the black screen disconnect the external USB drive.
After you are back to your current desktop, insert the external USB drive. There should be a single folder on the drive called 'Install Data' (I think). Find the InstallESD.dmg file and copy it to a folder on your current system (Downloads, for example).
Follow any of the internet instructions to create a ML USB thumb drive.
I tried this method, and while it did get me the installer image, when I restored it to an external and tried to use it to restore a Late 2012 Mac Mini, I got the same "No" symbol I did with other ML installers.
Here are some screenshots of what was loaded onto my external before I yanked it, when the screen turned black durring the restart. The highlighted file is what I restored to my external to use to restore the Mac Mini.

2008 iMac won't turn on after Mountain Lion installation

I have a 2008 iMac with 6GB of RAM that was running on OS X 10.6.8 perfectly. Tonight I upgraded it to Mountain Lion. After the installation, my machine was running slower and a little choppy, especially when first opening programs, even though it meets all the requirements for Mountain Lion. After about an hour or two of running like this, I was standing away from the computer for a minute when I saw a flash come from the monitor. I went to it and the screen was black. I thought maybe it had went to sleep, but nope! It was completely off and would not turn back on. No lights or sounds come on at all. There was no power outage or anything, and all other devices plugged into the same surge protector were working fine. I tried plugging it into another outlet and still had no luck.
Any insight onto what caused this? Is it most likely a power supply failure, and could this have been caused by the Mountain Lion installation? Considering I've had this computer for almost 5 years and this has never happened before, it seems obvious that this contributed somehow.
Any advice would be appreciated. I'm going to try to take it to an Apple store soon, but the earliest appointment is a few days away.
Thank you!

Welcome to Apple Support Communities
It's quite possible that the power supply failed. The failure is difficult to be related with OS X Mountain Lion, so I would discard that. In some cases, it's normal that you experience slowness after installing a new OS X version because Spotlight indexes the hard drive.
The best you can do is to take it to an Apple Store or reseller so you can get your Mac diagnosed. Now we can't do anything else apart from thinking that is a power supply issue

I have a MacBook early 2008 running OS X Lion 10.7.5 (11G63). Could I upgrade to Mountain Lion without problems?

I have a MacBook early 2008 running OS X Lion 10.7.5 (11G63). Could I upgrade to Mountain Lion without problems?

No... the specs are
MacBook (Late 2008 Aluminum, or Early 2009 or newer)
http://www.apple.com/osx/specs/

Mountain Lion WiFi Problems (recap)

Folks, wanted to recap this as I am finding the problem much more broad than my original post (here: https://discussions.apple.com/message/19123146#19123146). Here's my setup:
MacBook Air 13", Mid 2011
Mountain Lion
Wifi Problems, cannot connect to open wi-fi and Sprint hot spot.
CAN connect to Time Capsule (at least I could before I started futzing with my setup while on the road)
here's what I've done so far:
Reset SMC
Zapped PRAM
Reduced MTU to 1300
Set hotspot to 802.11g only
Set IPv6 to Local-link only
Set up a new user account, no connection there either
Repair disk
Repair disk permissions
Removed WiFi in networking control panel and re-add.
Remove the network from control panel AND remove keys from Keychain
What I have not done but will try later:
Reinstall ML
Disable WMM
Observations:
ML seems to think there is a connection to the wi-fi, but it can never get an IP address
Using a static IP on the network doesn't help the problem
My hotspot never really registers the MBA as a connection

Tell you what worked for me .. finally.
Had two Apple technicians on the case - over the phone. Have to say, those guys are awesome! - with patience of saints! But to the point! As there was nothing obviously wrong with operating system, they promised to call me back the following day but suggested talking to my Internet Service Provider about the router (D-Link router). The ISP remoted to my iMac and logged into router site and changed channel selection from automatic to manual. He chose channel 13, and suddenly my MBA connected and has been connecting smoothly ever since. The reasons I had problems was that there was over 10 available wi-fi networks in my flat, some of which showed as having stronger signal than my own. The ISP guy told me this, increasingly, becomes and issue, especially in blocks of flats - the ether is filled with wi-fi networks to the point of saturation. He also said, his choice of channel 13 was just a fluke and it might turn out I'd have to change it again.
So, although the problem is now solved, there still remains this one nagging question: Why did the wi-fi connectivity zonked right after Mountain Lion upgrade?

Problems with OS X Mountain Lion installation

What to do? This message keeps on prompting on each attempt to install os x mountain lion. "This copy of the Install OS X Mountain Lion application can't be verified. It may have been corrupted or tampered with during downloading." Even after deletion of the os x and re-installation, the same message keeps on prompting. Thank you for your help.

Try repairing your hard drive. If the hard drive is corrupt, that could be corrupting the download.
If that's not the problem, it could be that your internet connection is bad, and is corrupting the download. Try a different network.

Mountain lion installation fail problem

My hard drive failed yesterday and I have been unable to restore to a new hard drive from time capsule due to the screen saver crashing the restore.
I managed to get snow leopard onto it from my old disc, I then redownloaded mountain lion from purchases and have been trying to install from that.
It goes from time remaining 37 minutes to minus 3 hours
The only way out is to hold the power button down and then restart
This then starts the installation process over at 37 mins and 4 hours later its at -3hours
It was devastating enough that time capsule was unablel to restore my system but now the fact I can't even get ML back on the machine has made me want to put it in a skip.
Can anyone suggest a solution or am I doomed to this infinite loop of installation despair forever?

You might have a corrupted install package. Download another version. If that also faile, contact the MAS, since they're responsible for this atrociaous delivery system.

HT4814 Weird connection problems on clean mountain lion installation.

When I first installed Server, I wanted to see if it would work before going through all the effort to prepare my other mac. So I ran it locally.
Now my other mac is all ready to go, but Server.app, simply would not log on to the other mac, even though I could get to it with the same credentials over ssh (both the <sillyname>.local and the FQDN). After a few tries with that, it doesn't even give me the opportunity to choose another machine, it just says "Continue" or "Quit."
So, is there any fix for such a predicament? I can still activate the "connect to another mac" menu, but, for some reason, it will not accept the password that works everywhere else and that I set on that mac. I'm not convinced that it's even trying.
Disc sharing also seems not to be working. It's a clean installation of Mountain Lion, over there. If I ask to share the dvd drive, the other computer offers a dialogue, and, after I approve the request, nothing happens - my new mac just waits and waits.
Edit - even if I enable remote management, for everyone, with no password, on the other mac, my rMBP won't connect: not with FQDN, not with <silly>.local, and not with IP address. What is going on?
Yikes!
Advice appreciated.
Barbara

What are you formatting it as? MAC OS Extended (Journaled)? This is the only format you will be able to install ML on.
Why didn't you just uninstall the beta of CS6? The full version is out. and the Betas are discontinued, I believe, making it impossible to fully use.
I have had CS6 running now for over 48 hours, saving animated gifs, Jpg's, raw's, tiffs, so on in PS, AI and Flash and they all save just fine. Everything in CS6 has surprisingly been unbuggy and the recovery options it has (when your computer crashes) is so worth the update!
There might be an issue with your license? How much more time do you have with your trial period?
in either case, this issue does not warrant a clean install. you should have first attempted a reinstall. Once you migrate your system back from a clean install you essentially didn't do anything but bring back any issue you were having before.
A reinstall seems to fix my issues if I had any in Lion.

Mountain lion installation pauses

Tried to reinstall mountain lion and right after installation says complete then reboots, on start up spinning wheel tuns for about 3 minutes then stops spinning and computer never boots fully. Anyone else having this problem?
Only work around for me is to boot to safe mode, but I think the installation is corrupted because contacts, reminders and iPhoto all crash upon opening.

I do not understand what your problem is. Might you actually explain your problem before you start posting Console entries.

Mountain Lion installation problem?

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