How to install clean OS X Mavericks on a Mac running a newer version of OS X (macOS). Installing OS X Mountain Lion DP on an Old Mac
Any operating system sooner or later needs complete reinstallation. The reasons for this may be different: infection virus programs, bugs and so on. As a result of "pollution" unnecessary files, the device starts to work much slower due to processes. In some cases, it is easier to reinstall the system than to find the cause of the problem and fix it. Let's figure out how to reinstall Mac OS and what is required for this.
What is needed to reinstall?
Those users who are familiar only with operating computers Windows system, they won’t be able to without additional help reinstall OS on Mac. To reinstall Mac OS on a MacBook, you must prepare the following:
- MacBook () which is connected to the network;
- our step-by-step instructions.
Now let's move on directly to the process of installing a clean version of Mac OS. This instruction suitable for those who has the version installed operating system 10.7 or later. If you have more than old version, then it should be updated with standard means OS. You can check the software version using next steps:
How to reinstall Mac OS Sierra from scratch?
To begin with, it is worth noting that reinstalling Mac implies complete removal data from your computer's hard drive. Therefore, first copy all important information to third party media.
You can do this using the Time Machine backup program. Following the instructions of the Copy Wizard, you can easily create a backup copy on external media. Time Machine can also create backups in automatic mode. Old copies will be deleted, and new ones will be saved on disk. This way you won't have to worry about the data being up to date.
Now you know how to reinstall mac os x on a macbook pro or air, as well as on an iMac. Next, you need to configure the system and complete the installation process.
Final setup before use
After the installation is complete, the program will prompt you to basic settings:
- On the first screen, select the Mac OS language. In the future, it can be changed within the software settings;
- on the second screen you will be prompted to connect to Wi-Fi (optional). This step can be skipped;
- the next step is transferring information. Before you reinstall your MacBook Pro, Air or iMac, you can back up all your data;
- authorization via Apple ID (optional);
- Adoption license agreement;
- creating an account Mac recordings OS for computer.
Ready! Now you can independently install Mac OS on a MacBook of any version or an all-in-one iMac. The whole process is as simple as possible: only a few keystrokes are required from the user.
It just takes a little patience.
Two weeks ago, Apple released the first beta version of macOS Sierra to developers. Unfortunately, not all Mac models receive support for the new operating system.
If you are itching to try out the OS on your old laptop, then we have a solution for you.
Attention: You do everything at your own peril and risk.
What do we need
How to install Macos on a laptop
1
. Format the flash drive to Mac format OS Extended.
2
. Launch the macOS Sierra Patcher utility.
3
. Indicate the OS image in it.
4
. In the program window, select the USB drive in Target Volume and click the Start Operation button.
5 . Boot the Mac from the flash drive (hold Alt when turning on the laptop).
6 . Open Disk Utility.
7 . Format the required partition and select it under “Sierra”.
8 . Have you taken the first 7 steps? Well done! You can start installation.
Take a break, you deserve it. Kudos to the cat for his efforts. :)
9 . After the installation is complete, restart the laptop and boot from the flash drive again. Now you need to select macOS Post Install.
10 . A device selection window will pop up before your eyes. Feel free to choose your laptop model. The utility will automatically determine necessary settings For proper operation systems. Then click Patch.
11 . Then, in the drop-down menu, click Select Volume and select the partition on which the “axis” is installed.
We're almost done
12 . Once the patch is installed on the OS, select Reboot. The system will reboot and it will take some time to complete the settings.
13 . That's all, the Mac has rebooted and the system is ready to go!
With these simple manipulations we achieved our goal - macOS Sierra is installed and ready to go. Congratulations!
Sooner or later the day comes when you need to reinstall the Mac OS operating system on your MacBook PC. This task- no more difficult than reinstalling Windows. This is what we will talk about.
operating system on MacBook
Reasons for reinstalling the operating room Mac systems The OS on a Mac computer is:
- Damage or wear of the built-in storage device (HDD);
- selling or donating a MacBook to another person;
- "moving" to another MacBook (more new model, but with preservation previous version MacOS systems);
- data transfer to Apple gadgets or to another computer.
What happens when reinstalling MacOS:
- “from scratch”, including formatting the built-in disk;
- reinstallation “on top”, preserving personal data and applications (macOS update).
For example, using the MacAppStore you can update the version of OS X Lion and OS X Mountain Lion to the newer OS X Mavericks.
Procedure for sale or transfer Mac computer another user next. It deserves special mention.
- Backing up personal data from a MacBook to a separate media or cloud service.
- Disabling special services and functionality that manage data copying and transfer.
- Erase all personal information from the disk.
Attention! Before you start reinstalling MacOS on your MacBook PC, take the trouble to save all your data on an external drive!
This will be discussed first.
Backing Up Data Using Time Machine Time Machine is designed for backup personal files from a MacBook and restoring them back to it. But it requires external USB drives (HDD, SDD drives) formatted in MacOS Extended or Xsan - file systems
FAT/NTFS designed for Windows and Android are not supported. If the disk was previously formatted in FAT/NTFS formats, the MacBook will not accept it if you refuse to reformat it “for yourself.” The Time Machine application is launched from system settings MacOS in the Apple menu. When connecting an external hard drive
a corresponding notification will appear. Do you really want to destroy all data recorded on this drive
If the external drive has already been formatted, the Time Machine application will give the go-ahead for its use. Confirm your request.
Do you really want to copy your data to this drive?
If Time Machine does not show disk selection, do the following.
Interestingly, the backup in Time program Machine is fully automated - the backup copy is “refreshed” hourly, and their storage is organized, so you won’t get lost in them. In addition, copying is also possible to Apple server(like iCloud) and in storage local network, supporting Apple File Protocol. All this often helps if necessary reinstalling MacOS do not waste precious working time.
After copying all your data, you can start reinstalling MacOS.
Reinstalling MacOS on Mac
There are several ways to reinstall the operating system MacOS system on MacBook: “clean” installation from a flash drive, installation “over” the previous version (updating from MacAppStore) and restoring MacOS from a backup copy.
How to reinstall Mac OS from an installation flash drive
The preliminary steps are as follows.
- Download installation image Mac OS X operating system from the Mac Store App Store or from third party sites.
- When downloading is complete, click right click mouse over the downloaded file and select “Show package contents”.
- Go to the /Contents/SharedSupport/ folder, copy the InstallESD.dmg file to a safe location on your disk, and mount it to your MacOS desktop.
We will need the application " Disk Utility", included with MacOS. The next steps are as follows.
Disk Utility will create an installation flash drive automatically, and it does this operation quite reliably. When copying is complete, Disk Utility will notify you.
Congratulations! Installation flash drive MacOS is created! You can restart your MacBook. Preparing to install MacOS is as follows.
All! MacOS installation has started. The MacOS operating system will install automatically - this will take 30-100 minutes, depending on the performance of your MacBook. After it, your PC will be immediately ready for use.
How to install the system without formatting the internal drive
Installing MacOS without erasing the disk means downloading and installing MacOS updates directly from the MacAppStore. An installation flash drive is not needed here. This reminds iOS update on smartphones and tablets over the air. This method is good for those who once bought a MacBook - and are not going to change it, but, on the contrary, will work on it for many years, because MacBook computers, like Apple iDevice gadgets, are very high quality, reliable and convenient.
Before updating, check whether your MacBook meets the hardware requirements of the new version of MacOS - otherwise it will slow down.
Not every previous version of MacOS can be updated to the desired version. So, if it works on your MacBook Mac version OS Snow Leopard(10.6.8) and your MacBook will work with version MacOS Sierra, first update to MacOS X El Capitan.
The version of MacOS Sierra is taken as an example. Other copies are searched for and “installed” in exactly the same way. Your actions are as follows.
If you have OS X El Capitan 10.11.5 (or more recent), the macOS Sierra version downloads silently. You will then be prompted to install this version.
Click on the install button
During the installation of MacOS, the PC restarts several times. If this version does not suit you (the performance of the MacBook has dropped), “roll back” to the previous one (for example, OS X El Capitan), with which the PC performance was very satisfactory.
Restoring MacOS from a backup
For example, we take a “rollback” from MacOS Sierra (10.12) back to OS X El Capitan (10.11) or OS X Yosemite (10.10). Let's say there are backups made in the Time Machine application before installing MacOS Sierra.
Important! You can only restore a MacOS system from a backup to the same MacBook. Trying to transfer your copy of the MacOS system with data to another PC in this way is useless. Use other methods.
- Connect an external drive to your MacBook and save existing files in Time Machine, naming the new copy MacOS Sierra.
- Open your previous copy of OS X Yosemite with Time Machine on a different drive after connecting it to your MacBook.
- Restart your MacBook while holding Command+R on your keyboard. The familiar MacOS recovery menu will open.
- From the OS X Utilities menu, select Restore from Time Machine Backup.
- Once in the “Recover from Time Machine” recovery window, click on “Continue”, and then specify the source - the disk with the OS X El Capitan “backup”.
- The saved copy should be: In the case of OS X El Capitan, the MacOS version should be 10.11.x. Click the Continue button. Specify installation disk to restore from a copy, click on “Restore”.
Ready! The OS X El Capitan version will be reinstalled.
Transferring a copy of the operating system and your data to another MacBook
Go to Programs/Utilities and open Migration Assistant. The structure of your files and folders will be preserved.
Click to continue
When running, the application requires closing all other running programs.
If both computers are working, but you still want to duplicate your version of MacOS and all data on the second computer, connect the computers to each other using network cable LAN, by wireless network Wi-Fi. Connecting directly using a Thunderbolt or FireWire cable will require running your previous Mac in backup mode, which will make the Assistant experience a little more complicated. However, both methods work clearly. You can connect an external disk with a backup copy to the new PC instead of the previous PC - in this case, the operation of the Assistant on the new PC will not change significantly.
So, the procedure is as follows. Taken as an example normal mode operation of the previous PC with Assistant.
All! The copy session has started. This can take anywhere from 30 minutes to two hours, depending on the amount of data and the performance of both Macs.
Problems encountered when reinstalling MacOS
Problems when updating or “rolling back” may be as follows.
- No fresh backup copies. You once disabled backup yourself. Copy your files now to avoid losing them by starting the process manually. Enable backup.
- Error on next backup or when recovering personal data from previous copy. External drive, which has been recorded so far, is unsuitable for further use. Contact an Apple service center or certified computer repair shop to restore your data. This procedure is not free.
- Error during the next MacOS update. Your Mac PC may no longer be supported. This happens once every few years. All you have to do is use current version MacOS before replacing your Apple PC.
- The computer began to work noticeably slower than before the update. Minimum system requirements next new version equal or exceeded specifications your PC. “Roll back” to any of previous versions MacOS. Usually Apple tries to prevent this from happening - it simply stops supporting outdated computers, similar to how to install on iPhone 4x devices iOS version 10.x is no longer possible.
- After several active years, your PC suddenly began to freeze despite the fact that you did not update MacOS. Maybe it's time to replace the internal HDD/SSD drive? Try to backup your important data before replacing internal disk- while something is still being read from it.
- It is impossible to “roll back” to one of the previous ones installed versions MacOS. The “rollback” must be done gradually. If there are no previous backups, download a new “image” and “rollback” first to this version, and then repeat the “rollback” to an even higher one earlier version MacOS.
Video on the topic
Reinstalling MacOS - “on top” or “from scratch” - is not difficult. It is only important to secure your data. This real way extend the life of your beloved MacBook for another number of years. You will succeed!
In April, we briefly talked about the ability to install OS X 10.8.3 Mountain Lion on older Mac models that are not officially supported by the system. I used the method described in that material, and today I will tell you about it in more detail.
So, one important change has happened since April - now you can install OS X 10.8.4 on old Macs, which is Apple's most modern desktop OS today. The list of supported Mac models has not changed - just in case, I present it again:
All models from 2006 to 2008 with Core processor 2 Duo and Lion OS or higher installed (PPC, Core Duo and Core Solo are not supported)
- MacBook late 2006, 2007 and 2008
— MacBook Air early 2008
— MacBook Pro end of 2007 and mid-2007
- iMac 2006
- Mac Mini 2006
— Mac Pro 2006, 2007
— Xserve 2006 and early 2008
I installed OS X 10.8.4 on white MacBook 2008 with a Core 2 Duo processor with a frequency of 2.4 GHz. I’ll report on the results later, now let’s talk about the process of installing the system on a computer (the screenshots below are taken from the utility).
So, we will need the MLPostFactor utility (download) and the operating system OS X 10.8.4, which can either be officially downloaded from the Mac App Store, or obtained by some other method, which we will not describe here. There is no dependence of the operation of the MLPostFactor utility on the degree of “officiality” of the operating system, although many resources write that only an officially purchased OS is needed.
Having made sure that both the utility and the OS are loaded and located on the computer’s hard drive, we proceed to partitioning the disk for installation new system. We will need two new sections. Let's call one Install and allocate 8 GB to it disk space. The second one, the one in which the OS will be installed, let's call it ML, its volume should be at least 10 GB, and better, of course, more. My volume of this partition is 200 GB.
Having finished partitioning the disk, run the downloaded MLPostFactor utility and install it in the Install partition we created.
Reboot the computer with the Alt key pressed, select as boot disk Install. Install OS X 10.8.4 in the ML partition. After the installation is complete, go to the Utilities menu item, select MLPostFactor there and apply it to the ML section.
That's all, OS X 10.8.4 is installed on the computer. The ML partition has become bootable by default, so that the next time you reboot or turn on the computer Alt key no need to hold.
Now let's talk about how OS X 10.8.4 works on my old MacBook. In short, it works great. Compared to OS X 10.7.5 Lion) the laptop just flies, small volume random access memory(2 GB) practically does not affect the work (unlike Lion, where slowdowns were observed regularly, one only had to open 8-10 tabs in the browser and run several standard applications). Notification Center works, iMessage too, special problems was not noticed.
But small bugs are still present, although they are not at all critical during operation. First, when the laptop wakes up from sleep, sometimes (very rarely) “Image Capture” and iTunes launch - as if the laptop thinks that an iPhone is connected to it. Secondly, “Preview” sometimes crashes, especially when working with large images. This also happens extremely rarely; it happened to me two or three times during my entire time working on OS X 10.8.4.
Another problem appeared quite recently. I use Safari as my main browser, and for YouTube and some other Flash video sites I keep Chrome handy. And here in Lately It has become simply impossible to work in Chrome - when you open a new tab, the browser simply crashes, and this happens all the time. All this is due to the fact that the last Chrome version(29, I think) does not want to work with OS X 10.8.4 installed via MLPostFactor. The solution here is simple - download (27th) and disable automatic browser updates. Automatic Chrome update disabled using the command in the “Terminal”:
Defaults write com.google.Keystone.Agent checkInterval 0
You can return everything back using the command:
Defaults write com.google.Keystone.Agent checkInterval 18000
Here 18000 is the interval between browser update checks in seconds. This value can be set at your discretion.
To summarize, I am quite happy with OS X 10.8.4 on my 2008 MacBook, much more than with the official OS X 10.7.5 Lion. But the noticed bugs are not so significant, and they do not force me to stop using Mountain Lion. Therefore, I confidently recommend the method described above to everyone, but just do not forget that you will perform all manipulations at your own peril and risk.
P.S. The MacRumors website has an English-language MLPostFactor - where the utility developers answer user questions.
Operating system MacOS X - own development Apple and is installed on all computers produced by it. Thanks to its tight integration and hardware design, it offers high stability and performance. A new version of this OS is released once a year, and during its service life, updates are regularly released to correct detected errors. We will tell you in this article how to reinstall Mac OS X on your computer and what installation options are available.
Terms of distribution
Mac OS X is a proprietary operating system, the first version of which was released in 2001. Over the next twelve years, it was distributed on a paid basis, and all its versions bore “cat” names. The first in this series was OS 10.0 “Cheetah”, the last one was 10.8 “Mountain Lion”.
Starting with version 10.9, MacOS is distributed free of charge, and code names began to be assigned in honor of geographical objects located in the state of California. The first operating system in this series was released in 2013 and was named Mavericks, after a popular Californian beach.
In 2016, Apple changed one of the clauses in its license agreement with users. MacOS has since been considered not purchased, but leased from the company for the duration of use of its equipment. However, this change mostly affects those users who use the so-called MacOS on a third-party computer.
Update from App Store
The easiest way to install a new version is to download it from the store Apps Store. Let's see what needs to be done in this case and how. You can reinstall Mac OS X in this way on any Apple computer, the hardware of which will support the capabilities of the latest version of the operating system.
To download, you will need a working OS and Internet access. On home page App Store, in the " Quick links", the very first one will be located current version Mac OS available for your computer. By going to the operating system page, select the “Download” option, and in the “Programs” folder you will see its image with the name “Install Mac OS”, the current build number and an indicator showing the progress of downloading it from the company’s servers.
After receiving the image on your computer, all you have to do is run it like this: regular program. In the future, without your participation, several reboots will take place, and you will be able to use the latest Apple operating system.
Installing from the recovery partition
Over time, hardware requirements increase, and even if your laptop officially supports the new version, it can work more efficiently on the old one. Let's look at how to do it on a MacBook without changing the OS to a newer one. In this case, we will also need a connection to the World Wide Web.
At boot time, you must use the keyboard shortcut Command+R. With its help, you get to the recovery menu and choose how to reinstall Mac OS. You will be able to upgrade to the latest supported version or the latest version in use. By choosing the second option, you will actually install back the OS on which your laptop showed better performance.
When using the restore feature, you also have the option to return the version of the operating system with which you purchased your computer. If you decide to perform this operation, you will need to use more complex combination keys on initial stage downloads. While holding down Shift+Command+Option+R and answering the question about how to reinstall Mac OS, select the option to install the system that came with it.
Installation from a flash drive
After new versions of Apple OS are released, to activate all available options, a clean installation may be necessary. In this case, you need to know how to reinstall Mac OS from scratch using a bootable USB flash drive. This option is not much more complicated than the previous ones, and the only thing you need is external storage at least 8 GB in size and named Untitled. You can rename it using the Disk Utility program included in the OS.
First, you will need to download the boot image to your computer using the method described above. Once you have received it, you can start creating your own bootable flash drive. We will only use regular means the operating system itself and create an installation disk using the Terminal program. Copy the following command into its window:
sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ macOS\ Sierra.app --nointeraction
To complete it you will need Account administrator or knowledge of the administrative password. If before this you followed our recommendations exactly, then after no more than half an hour you will have an installation disk with latest version OS X Sierra.
Finally
From this material you learned how to reinstall Mac OS on your computer and what options are available for completing this task. As you can see, the process of reinstalling the Apple operating system is quite simple and downloading its image will take you the most time. Having coped with this task, you can consider yourself a real poppy grower.