The older versions included in the list below are also stable but the Final Mac OS X Mountain Lion 10.8.X version is recommended fro users who want to get the most stable version of this operating system available online. Nov 29, 2017  Download and install older versions of OS X on a Mac. Igor Degtiarenko. Download CleanMyMac for OS 10.4 - 10.8 (free version) Download CleanMyMac for OS 10.9. Go to external drive OS X Install Data. Locate InstallESD.dmg disk image file — this is the file you need to reinstall Lion OS X. The same steps are valid for Mountain Lion. Feb 17, 2012  If you already have the Mac OS X Mountain Lion install DMG extracted, skip this first set of steps and jump directly to making the bootable drive below. Download OS X Mountain Lion and Extract the DMG File. Download OS X 10.8 Mountain Lion from the App Store. Apple has released its OS X 10.8 Mountain Lion (see CNET's full review) and it's available for download from the Mac App Store on systems running OS X 10.6.6 or later.If you're interested in the. Download Mac OS X Mountain Lion 10.8 ISO and DMG Image. The Mac OS X Mountain DMG file can be downloaded from the below link. The Mac OS X Mountain Lion is considered to be a very stable operating system and won’t be much of a trouble to the users. Make sure that the minimum system requirements are met. The File size is around 4.2 GB.

• Mac Os X 10.8 Dmg Download Free
• Mac Os X Mountain Lion (10.8) Installation Files .dmg Download
• Os X 10.8 Download Dmg Windows 10
• Os X 10.8 Download Dmg Download

So, you’ve decided to download an older version of Mac OS X. There are many reasons that could point you to this radical decision. To begin with, some of your apps may not be working properly (or simply crash) on newer operating systems. Also, you may have noticed your Mac’s performance went down right after the last update. Finally, if you want to run a parallel copy of Mac OS X on a virtual machine, you too will need a working installation file of an older Mac OS X. Further down we’ll explain where to get one and what problems you may face down the road.

A list of all Mac OS X versions

We’ll be repeatedly referring to these Apple OS versions below, so it’s good to know the basic macOS timeline.

STEP 1. Prepare your Mac for installation

Given your Mac isn’t new and is filled with data, you will probably need enough free space on your Mac. This includes not just space for the OS itself but also space for other applications and your user data. One more argument is that the free space on your disk translates into virtual memory so your apps have “fuel” to operate on. The chart below tells you how much free space is needed.

Note, that it is recommended that you install OS on a clean drive. Next, you will need enough disk space available, for example, to create Recovery Partition. Here are some ideas to free up space on your drive:

• Uninstall large unused apps
• Empty Trash Bin and Downloads
• Locate the biggest files on your computer:

Go to Finder > All My Files > Arrange by size
Then you can move your space hoggers onto an external drive or a cloud storage.
If you aren’t comfortable with cleaning the Mac manually, there are some nice automatic “room cleaners”. Our favorite is CleanMyMac as it’s most simple to use of all. It deletes system junk, old broken apps, and the rest of hidden junk on your drive.

Download CleanMyMac for OS 10.4 - 10.8 (free version)

Download CleanMyMac for OS 10.9 (free version)

Download CleanMyMac for OS 10.10 - 10.14 (free version)

STEP 2. Get a copy of Mac OS X download

Normally, it is assumed that updating OS is a one-way road. That’s why going back to a past Apple OS version is problematic. The main challenge is to download the OS installation file itself, because your Mac may already be running a newer version. If you succeed in downloading the OS installation, your next step is to create a bootable USB or DVD and then reinstall the OS on your computer.

How to download older Mac OS X versions via the App Store

If you once had purchased an old version of Mac OS X from the App Store, open it and go to the Purchased tab. There you’ll find all the installers you can download. However, it doesn’t always work that way. The purchased section lists only those operating systems that you had downloaded in the past. But here is the path to check it:

Mac Os X 10.8 Dmg Download Free

1. Click the App Store icon.
2. Click Purchases in the top menu.
3. Scroll down to find the preferred OS X version.
4. Click Download.

This method allows you to download Mavericks and Yosemite by logging with your Apple ID — only if you previously downloaded them from the Mac App Store.

Without App Store: Download Mac OS version as Apple Developer

If you are signed with an Apple Developer account, you can get access to products that are no longer listed on the App Store. If you desperately need a lower OS X version build, consider creating a new Developer account among other options. The membership cost is $99/year and provides a bunch of perks unavailable to ordinary users.

Nevertheless, keep in mind that if you visit developer.apple.com/downloads, you can only find 10.3-10.6 OS X operating systems there. Newer versions are not available because starting Mac OS X Snow Leopard 10.7, the App Store has become the only source of updating Apple OS versions.

Purchase an older version of Mac operating system

You can purchase a boxed or email version of past Mac OS X directly from Apple. Both will cost you around $20. For the reason of being rather antiquated, Snow Leopard and earlier Apple versions can only be installed from DVD.

Buy a boxed edition of Snow Leopard 10.6
Get an email copy of Lion 10.7
Get an email copy of Mountain Lion 10.8

The email edition comes with a special download code you can use for the Mac App Store. Note, that to install the Lion or Mountain Lion, your Mac needs to be running Snow Leopard so you can install the newer OS on top of it.

How to get macOS El Capitan download

If you are wondering if you can run El Capitan on an older Mac, rejoice as it’s possible too. But before your Mac can run El Capitan it has to be updated to OS X 10.6.8. So, here are main steps you should take:

1. Install Snow Leopard from install DVD.
2. Update to 10.6.8 using Software Update.
3. Download El Capitan here.

“I can’t download an old version of Mac OS X”

If you have a newer Mac, there is no physical option to install Mac OS versions older than your current Mac model. For instance, if your MacBook was released in 2014, don’t expect it to run any OS released prior of that time, because older Apple OS versions simply do not include hardware drivers for your Mac.

But as it often happens, workarounds are possible. There is still a chance to download the installation file if you have an access to a Mac (or virtual machine) running that operating system. For example, to get an installer for Lion, you may ask a friend who has Lion-operated Mac or, once again, set up a virtual machine running Lion. Then you will need to prepare an external drive to download the installation file using OS X Utilities.

After you’ve completed the download, the installer should launch automatically, but you can click Cancel and copy the file you need. Below is the detailed instruction how to do it.

STEP 3. Install older OS X onto an external drive

The following method allows you to download Mac OS X Lion, Mountain Lion, and Mavericks.

1. Start your Mac holding down Command + R.
2. Prepare a clean external drive (at least 10 GB of storage).
3. Within OS X Utilities, choose Reinstall OS X.
4. Select external drive as a source.
5. Enter your Apple ID.

Now the OS should start downloading automatically onto the external drive. After the download is complete, your Mac will prompt you to do a restart, but at this point, you should completely shut it down. Now that the installation file is “captured” onto your external drive, you can reinstall the OS, this time running the file on your Mac.

1. Boot your Mac from your standard drive.
2. Connect the external drive.
3. Go to external drive > OS X Install Data.

Locate InstallESD.dmg disk image file — this is the file you need to reinstall Lion OS X. The same steps are valid for Mountain Lion and Mavericks.

How to downgrade a Mac running later macOS versions

If your Mac runs macOS Sierra 10.12 or macOS High Sierra 10.13, it is possible to revert it to the previous system if you are not satisfied with the experience. You can do it either with Time Machine or by creating a bootable USB or external drive.
Instruction to downgrade from macOS Sierra

Instruction to downgrade from macOS High Sierra

Run dmg file on mac terminal 7. Install dmg package on MAC OS from Terminal. Ask Question Asked 5 years, 8 months ago. Active 1 year, 7 months ago. Viewed 20k times 7. I would like to install the dmg java package in my MAC OS through the terminal. Let dmgFilePath be the variable containing the path of your dmg file. Then you can try this. Dec 10, 2008  It can be used as a remote desktop client for Linux, Mac, or Windows hosts. The download file is named 'cotvnc-20b4.dmg'. Here are the steps needed to install it remotely from the command line. Note: this technique can be used from a local Terminal window or a. I want to install a dmg file on a remote server. All I have is an ssh access. Since a DMG is a disk image, I tried to mount it, but mount does not seem to recognize its format. File says my dmg f. Dec 17, 2011  A helpful command line tool called hdiutil is included in Mac OS X that allows disk image files (.dmg extension) to be mounted directly from the Terminal, without the need of using the GUI.

Instruction to downgrade from macOS Mojave

Instruction to downgrade from macOS Catalina

Before you do it, the best advice is to back your Mac up so your most important files stay intact. In addition to that, it makes sense to clean up your Mac from old system junk files and application leftovers. The easiest way to do it is to run CleanMyMac X on your machine (download it for free here).

Visit your local Apple Store to download older OS X version

If none of the options to get older OS X worked, pay a visit to nearest local Apple Store. They should have image installations going back to OS Leopard and earlier. You can also ask their assistance to create a bootable USB drive with the installation file. So here you are. We hope this article has helped you to download an old version of Mac OS X. Below are a few more links you may find interesting.

These might also interest you:

Get the latest 10.8.5 OS X Mountain Lion the newest version of the world’s most advanced desktop operating system. It has over 200 new features that update the Mac and make it the best computer there is. Use the new Messaging app to write and send photos, videos, contacts, links and documents to anyone using another Mac, iPhone, iPad or iPod touch.

OS X Mountain Lion 10 DMG enables you to start a conversation on one device and continue on another. Send to all files, web pages, photos, videos and tweets with the new Share button, directly from the app you are using. Create to-do lists and alerts that will appear in the new Notification Center, with the Reminder app. Take notes of all your ideas with Notes, and write aloud with the Dictation feature.

Download OS X Mountain Lion Mac and enjoy the most useful operating system for mac users. And if you want to have fun, challenge friends who have a Mac or an iOS device in fantastic games on the Mac with Game Center. And in addition iCloud is standard: so keep up to date on all your mail devices, contacts, calendars, reminders, notes, to-do lists, music, photos, iWork documents, PDF and much more is really easy.

OS X Mountain Lion 10 DMG Features:

Messages
• Send messages from your Mac to anyone with an iPhone, iPad or another Mac.
• With iMessage you can start a conversation on your Mac and continue it on your iPhone or iPad.
• Messages also supports traditional instant messaging services such as AIM, Yahoo! Google Talk and Jabber.

iCloud
• Documents in the cloud lets you create and edit documents on your Mac, iPhone and iPad.
• The new Reminder app simplifies task management. Pin up your ideas with the new Note app. And with iCloud, keep your reminders and notes up-to-date on all your devices.

Safari
• Use the new smart search field to write addresses and search the web.
• Pinch to view panels with the panel view and scroll to switch between them.
• With iCloud panels, the last websites you’ve visited are accessible from your iPhone, iPad and Mac. *

Notification center
• New notifications appear in the upper right corner of your screen.
• Open Notification Center from anywhere in OS X to see the latest notifications.
• Configure your notifications to receive only the ones you want.

Sharing
• Share links, photos, videos and other files directly from the app you are using.
• Share with Mail, Messages and AirDrop.
• Log in to Twitter, Flickr and Vimeo once, and then start sharing.
• Tweet directly from your apps.

Game Center
• Play live multiplayer and turn-based matches against your friends on iPhone, iPad, iPod touch or Mac.
• Log in to the Game Center app to see friends on your gaming network.
• Check the rankings and results.
• See what your friends are playing and keep track of your progress.

Key features of Mountain Lion DMG:

• Dictation allows you to speak instead of writing: there is no need for training or configuration.
• AirPlay Mirroring shows the screen of your Mac on an HD TV via Apple TV.
• Power Nap keeps your Mac up to date while you’re sleeping, so it’s ready to go.
• With Gatekeeper downloading apps from the internet is safer because it allows you to control which apps can be installed on your Mac.

What’s new in Mac OS X Mountain Lion 10.8.5 ?

The 10.8.5 update improves the stability, compatibility and security of your Mac. This update:

• Resolves an issue that may prevent Mail from viewing messages.
• Improves file transfer performance over AFP over 802.11ac Wi-Fi.
• Resolves an issue that may prevent the screen saver from starting automatically.
• Improves Xsan reliability

System requirements:

Mac Os X Mountain Lion (10.8) Installation Files .dmg Download

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