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Recovery mode or how to reinstall OS X on Mac? How to reinstall OS X. Restore Recovery while saving data. How to reinstall Mac OS from an installation flash drive Recovery mode macbook air

For full-time work with Mac OS you need to be able to perform various operations: resetting a Macbook Pro to factory settings, returning lost data from a backup, restoring forgotten password. All this can be done on a Mac using the built-in system tools, but in the most difficult situations you will need to use the installation disk.

Factory reset

If Mac OS on a Macbook Pro or other Apple computer model is working with errors and you want to return standard settings, then make sure to first create a backup copy of your data, since all information will be deleted during the reset. To create a backup copy of the OS, it is recommended to use the Time Machine utility. To store the backup you will need an external HDD, formatted in Mac OS Extended (Journaled).

After adjusting the settings, the Time Machine slider will move to the On position. A full system backup takes several hours. After creating a backup copy, you can proceed to returning the factory settings to the OS:

Once the disk formatting process is complete and the OS settings have been reset to factory settings, exit Disk Utility. Reinstall Mac OS X again using the appropriate option in the Utilities window.

Restoring data from backup

If you decide to create a backup copy before resetting your Macbook Pro, you can quickly restore lost files if necessary.

Once the calculation of the time required to transfer files is complete, click "Recover". A warning will appear that the disk to which you are restoring data will be completely cleared of information. Click Continue. After the recovery is complete, restart your computer. When you start, you will see the system as it was at the time the backup was created. Any changes made after this event will be discarded.

Password recovery

There are three ways to reset a password that a user has forgotten:

Using the installation disc.
Applying recovery using Apple ID.
Using the terminal in recovery mode.

If you have an installation Mac disk OS X, then resetting your password will not take much time:

The Reset Wizard will help you get rid of a key that the user has forgotten and set up a new password. This is the most quick way, but if you don't have a Mac OS disk, it won't work. In this case, you can try entering the password incorrectly three times - a recovery window via Apple ID will appear.

However, there is a condition here: the password recovery function via Apple ID must be enabled in the Mac settings. If you have not activated this feature, use the third method, which works on all versions of Mac OS and does not impose any requirements.

After resetting the password, you need to restart the OS. At startup, a message will appear stating that the system was unable to unlock the login keychain.

It refused to boot. CMD+R Does not help. What should I do?

The start of the working day did not foretell anything bad. A cup of coffee, a good mood, the Power key and the MacBook displays the following sad picture:

A worrying thought about the safety of the data immediately flashed through my head, current version backup copy TimeMachine(which was not at hand) and possible loss of information.

Attempt No. 1. Booting into recovery mode

Being an interested user and an avid Mac user, I immediately tried to start the MacBook in recovery mode by holding down the keys CMD+R. Instead of the usual disk utility, the system greeted me with a window with an attempt network recovery.

By selecting home network Wi-Fi, I began to wait for further developments. After a few minutes, OS X's recovery progress was interrupted error -4403F.

Attempts to start the process again led to exactly the same result. Rebooting the router confirmed that network connection everything is fine.

About trying to diagnose a Mac, fixing it possible mistakes hard drive or simply reinstalling the system was now out of the question. Section with Recovery HD, in which the tools for restoration are stored, ordered to live long.

Attempt No. 2. Resetting PRAM and NVRAM

Mac computers were created by highly qualified engineers, so the correct organization of the entire system and the presence of “hidden hardware reserves” allows you to avoid a number of interruptions in its operation. One of these reserves is memory sections PRAM And NVRAM. It stores settings data that is not reset even after the computer is disconnected from power. To revive the fallen system, a decision was made reset PRAM and NVRAM settings.

1. Turn on the Mac.
2. After the white screen appears, quickly press the key combination CMD + Option + P + R.
3. Hold until the Mac reboots again and the Mac greets the sound.

PRAM and NVRAM reset completed.

Although they say that hope dies last, it, lifeless and barely alive, continued to lurk in my mind. Resetting PRAM and NVRAM did not affect the error when loading the system. The MacBook continued to test my nerves.

Attempt No. 3. Reset SMS

Having gotten used to storing all the necessary data “in the cloud” or on removable media, the most simple solution global problems always remained to reinstall the system from scratch. This case was special. I needed data stored in memory and I needed a working Mac today.

In the Mac environment there is something called system management controller SMC. The stability of the entire system depends on the reliability of its operation. Resetting SMC settings can cure a number of problems like:

Sleep mode

To reset the SMC, follow these steps:

Laptops with built-in batteries

1. Turn off your MacBook and plug in the power adapter.
2. Press and hold the keys at the same time Shit + Control + Option + Power and hold until the MagSafe adapter indicator changes color.
3. Release all keys and press the key again Power.

Laptops with removable batteries (older models)

1. Turn off your MacBook and unplug the power adapter.
2. Remove the battery from the laptop.
3. Hold down the key Power And hold for at least 5 seconds.
4. Release Power, insert the battery and connect the power adapter. Turn on your laptop.

Desktops (iMac, Mac mini, Mac Pro)

1. Completely disconnect the computer from the mains power.
2. Wait at least 30 seconds.
3. Connect the power and wait another 5-10 seconds and then turn on the computer.

The above actions can become really effective and the system will start. In my case, a miracle did not happen.

Attempt No. 4. Recovery using a bootable USB flash drive

An attempt to revive the system using the above actions was unsuccessful. The only option left was to reinstall OS X using bootable flash drive. For this step you will need:

another computer running operating system OS X;
Flash drive, at least 8 GB in size.

Preparing a flash drive

1. In the store Mac applications App Store You will need to download the OS X Yosemite system distribution.
2. To create a bootable USB flash drive, download the DiskMaker X utility (distributed for free). You will need it to deploy the distribution.
3. Format the flash drive using Disk Utility V Mac OS Extended (Journaled).

4. After the distribution has finished downloading, cancel the proposed installation and run the utility DiskMaker X.
5. Choose a system Yosemite (10.10). The utility will detect the distribution in the folder Applications. Click Use this copy(use this copy).

6. Select the drive installed in the USB port and agree to the warning about complete removal all data present on the flash drive.

7. The process of mounting the distribution kit with OS X Yosemite to the drive will begin.

The copying process takes about 10-20 minutes and depends on the writing speed of the USB flash drive. During mounting, the screen may periodically open dialog boxes and folders. Do not pay attention.

Once the OS X Yosemite image has successfully deployed, remove the drive.

System installation
1. Insert the flash drive into the USB port of the “problem Mac”, press the key Power and hold down the key Alt.
2. In the list of available partitions for downloading, select OS X Base System. Please note that there is no section Recovery. .

3. The Mac will boot into recovery mode. After selecting the main system language, the installation menu will open. In the top menu you will find standard list utilities

Use disk utility and first try to check the access rights to the system partition and correct any errors. If after rebooting the system still refuses to boot, you will need to separate a partition of at least 20 GB in size for installation purposes new system. Detailed instructions by disk partitioning you will find .

From the same menu, you can either begin the process of installing the system on a newly created partition, or restore the system using a TimeMachine backup (see).

CAREFULLY! Be careful when choosing the installation partition. The installation must be carried out not on top of the old partition, but on a newly created one.

After installation is complete, you will have access to all data located on the “corrupted” partition with old version systems.

To use your Macbook 100%, you need to be able to perform various operations. The most important of them are returning data from backup, restoring password characters, returning to original settings. The last operation is discussed in detail below, but the others are also mentioned. All procedures are easily performed using “native” tools. In difficult situations, an installation disk is required.

If the device on Mac OS functions with errors or the owner is preparing it for sale, you will need to perform a reset procedure. Before you begin, you should create a backup, since all information will be irretrievably erased during the operation. To do this, it is recommended to use Time Machine software. Copy storage location: external hard disk. It should be formatted in Mac OS Extended (Journaled).

After completing the preparatory steps, the algorithm of actions will be as follows:

Open the list of software and launch Time Machine.
Click on the disk selection section.
We indicate external source, where the backup will be saved and click on “Use. disk".
The backup generation function will offer to erase the data present on the external drive. You must agree to this operation, otherwise creating a copy will not be possible.
If you need to include not all elements in the backup, proceed to the parameters section. There, using the “plus” button, we add to the list data that will not be included in the backup.
Once you've finished adjusting the values, the Time Machine slider will turn on. A complete backup operation will take a long time. After completing the procedure, you can return the original settings to the device. To this end, we move on to the next stage.
Reboot the MacBook by pressing Command and R.
Expand the utilities section and launch the disk drive.
On the left side of the panel, select the boot disk and go to the erase section.
Specify the format “Mac OS Extended” and click on the erase button.

After completing the procedure of formatting the disk and resetting the values to the original values, exit the disk utility. We reinstall the operating system again, following the advice in the corresponding utility window.

Method for restoring data from backup

To get back all the information lost during the data reset process, you need to make a backup. The steps to create a copy are:

We connect an external drive with a copy from the MacBook.
Place the installation disk in the device. When the system starts, press the “C” element to enter the installer section. We select the language.
Open the utilities section and start the system restore operation from backup.
Click on the continuation element in the pop-up window.
Select the drive where the backup is saved .
Specify the date of the final backup .
Select the disk where we will restore the data.

After finishing calculating the time for this operation, click on the restore button. A warning will pop up about cleaning up the disk you are working with. Click the continue button and recovery mode will start. Upon completion of the operation, reboot the device. During the startup process, the system will be displayed as it was on the date the copy was created. All edits made after the operation will be cancelled.

Steps to recover password characters

You can reset your forgotten password using one of 3 methods:

Using the installation disc.
By ID number.
Using the terminal in recovery mode.

If you have an installation disk for the Mac OS X operating system, it won’t take hours to reset the password characters, just a few minutes will be enough:

Place the disc in the drive and reboot the device.
When you hear startup sounds, press the “C” item. Hold until a spinning gear appears.
Select the language and press the continuation element.
In the OS installation menu, select the utility software section and launch the password reset mechanism.

The wizard will reset the current key that you forgot and configure new symbols. This method is the easiest. But if you don’t have a disk with the operating room, nothing will work. In such a situation, try to enter the wrong password characters three times, an installation window will pop up via ID number.

However, there is a requirement here too. The option to recover password characters using ID must be active in the MacBook settings. If this is not the case, you should resort to the following method, which works on all variations of the operating system and always works 100%:

Reboot your device. To do this, press the Command+R elements at the same time until the loading indication appears.
Select Russian as the main language. The system will boot into recovery mode.
Open the utilities section at the top and launch the operating system.
Type “resetpassword” and click Enter.
Check the section where the user account is located.
Select an account and enter the new password characters twice.
Click on the consent element to confirm the data reset.

After discarding the symbols, restart the operating system. At startup, a warning will pop up about the impossibility of unlocking the keychain to log in. Click on the new login element and enter the characters of the password specified after resetting the previous key.

That's all the instructions on how to return your MacBook to factory settings, how to backup and restore the system. All these operations will not be difficult to perform on any model of an Apple laptop - Air or MacBook Pro. They are necessary when various kinds of problems or errors arise. Every device owner should know how to reset to the original settings, because if the device is sold (or when you need to restore it), this is simply necessary. But before restoring factory settings you will need backup copy, because all data will inevitably be erased. The copying process is also very simple. The easiest way to do this is to use iCloud.

Restoring or reinstalling software

Mac OS X software

If there is a problem with your Mac software or hardware
problem, you can use recovery utilities in Mac OS X,
to avoid problems and even restore original factory settings
software. These utilities are available in Mac OS X Utilities.
even if your computer does not boot properly.

Mac OS X Utilities lets you do the following:

restore your computer disk using Disk Utility;

Chapter 4

There is a problem - there is a solution

restore software and data from Time backup
Machine;

restore Mac OS X Lion and Apple programs;

restore your computer to factory settings by erasing its disk and reinstalling
Mac OS X Lion and Apple programs.

If a problem is detected with your computer, it automatically opens
Mac OS X Utilities panel. You can also open it manually by rebooting
computer.

To open the Mac OS X Utilities panel, do the following:

Restart your computer while holding down the (x) and R keys.

Some utilities in the Mac OS X Utilities panel require
access to the Internet and App Store for Mac. You may need to make sure that
the computer is connected to the Internet via Ethernet network or Wi-Fi.

Connect via Wi-Fi network

Select a network from the Wi-Fi status menu in the top right corner of the screen.

If necessary, enter a password to access the network.

To connect to a closed network, select Connect to Another Network.
Enter your network name and password.

Recovering a disk using Disk Utility

If there is a problem with your computer or when loading
computer You see the Mac OS X Utilities panel, you may need to
restore computer disk.

Chapter 4

There is a problem - there is a solution

Select Disk Utility from the Mac OS X Utilities panel and click
"Continue".

Select a drive or partition from the list on the left and open the First Aid tab.

Click Repair Disk.

If Disk Utility can't fix the disk, try as much as possible
save the information in a backup copy and follow the instructions in the section
“Reinstalling Mac OS X and Apple Software” on page 97.

Information about Disk Utility and its settings can be found in the Help
center, or you can open Disk Utility itself (in the Utilities folder
in Launchpad) and select Help > Disk Utility Help.

Restoring information using a backup copy
Time Machine

If you have previously created Time Machine backups, you can use
"Recovery" utility restores all the contents of the computer
to the state in which it was at a certain point in time
in past.
Use a Time Machine backup only for recovery
information on the computer from which the backup was created.
To transfer information to new computer use the Assistant
migration.

If the backup is on a Time Capsule, make sure your Mac Pro is connected
to the same Ethernet or Wi-Fi network. (To connect to Wi-Fi networks, follow
instructions on page 95).

Chapter 4

There is a problem - there is a solution

In the Mac OS X Utilities panel, select Restore from Time Backup
Machine" and click "Continue".

Select the drive where the Time Machine backup is located, and then
follow the instructions on the screen.

Reinstalling Mac OS X and Apple programs

There are times when you need to reinstall Mac OS X and Apple programs.
When reinstalling the system, you can save all files and settings.

Important.

You can also reinstall and restore from the Mac OS X Utilities panel

Mac OS X Lion Server software, if installed on your
Mac Pro.

Make sure your Mac Pro is connected to the Internet via Ethernet or Wi-Fi.

"Continue".

When prompted to select a drive, select the current Mac OS X drive
(in most cases this is the only option available).

To install additional software, click
"Tune".

Click Install.

You can install Mac OS X without deleting the entire contents of the disk (and
existing files and settings are preserved) or clear the disk first (if
this erases all your data) to prepare the computer for reinstallation
Mac OS X and programs.

Chapter 4

There is a problem - there is a solution

After re Mac installations OS X You can go to the Mac App Store and re-install
Download the programs that came with your Mac and other programs
that you purchased from the Mac App Store.

before proceeding with software recovery. Apple
is not responsible for possible loss of data.

Restoring your computer to factory settings

Restoring your computer to factory settings deletes everything on it.
There is ( Accounts, network settings, files and folders). Before recovery
be sure to create a backup copy of the files you need: copy
them to another disk. Make a note of your network settings so that after you reinstall Mac OS X
it was easier to reconnect with her.

Make sure you are connected to the Internet via Ethernet or Wi-Fi.
(To connect to a Wi-Fi network, follow the instructions on page 95.)

In the Mac OS X Utilities panel, select Disk Utility and click
"Continue".

Select the drive in the list on the left and open the Erase tab.

From the Format pop-up menu, choose Mac OS Extended (Journaled)
enter the drive name and then click Erase.

After erasing the disk, select Disk Utility > Finish
Disk Utility."

In the Mac OS X Utilities panel, select Reinstall Mac OS X and click
"Continue".

Chapter 4

There is a problem - there is a solution

Follow the instructions to reinstall Mac OS X and Apple programs
Mac OS X installer.

After restoring Mac OS X and Apple programs, you can, at your discretion,
restore necessary files and programs from a Time Machine backup.

After downloading the update from the Appstore, proceed as follows:

Launch Disk Utility;
In the left panel, select the drive, on the right, go to the “Disk Partition” tab;
In the "Partition Scheme" menu, select "Section 1". The disk name is "Yosemite", the format must be "Mac OS Extended (Journaled)".
Go to "Options", select the GUID partition scheme. Click "Apply".
Disk Utility begins formatting the flash drive.
From the "Utilities" folder, launch "Terminal".
To create a flash drive, run the following command:

Enter the administrator password.
It will take 10-15 minutes to create a bootable USB flash drive.
After the procedure is successfully completed, reboot the Mac. When loading, hold down Alt.
You are ready to install Mac OS X Yosemite.

Installing Yosemite

After creating a flash drive and rebooting the Mac, follow the instructions:

Go to the "Downloads" menu and select "Mac OS X Installer".
You need to open Disk Utility and select the disk with the system to format. Go to the "Erase" tab.
In the "Format" menu, "Mac OS Extended (Journaled)" must be selected, and the name of the disk is written.
Click "Erase", thereby starting the disk formatting process.
Close Disk Utility and open the Install Mac OS X section.
We specify the Yosemite boot disk and start the installation process.

Starting the installation process involves following the installer's instructions. Select the necessary parameters, the system will soon be ready for use. After installing Mac OS Yosemite, you can start using the system from scratch or transfer files from Time Machine.

Reinstalling Mac OS X Yosemite

If OS X Yosemite is already installed, you may need to reinstall it in the following cases:

System failures;
Errors when installing updates;
Disk cleaning;
The need to restore factory settings.

So, let's answer the question, how to reinstall Mac OS X Yosemite. To do this you need to erase Mac data and reinstall the system. Don't forget to back up your valuable files. To restore factory settings, you need to use the built-in recovery disk. To reinstall the system, an Internet connection is required, as well as a connected power adapter.

The procedure is simple:

Restart your Mac. During boot (gray screen), press Command+R.
Select "Disk Utility" and click "Continue".
Select the disk and click "Erase".
In the "Format" section, select Mac OS Extended (journaled), enter a name, and click "Erase".
The disk will take some time to clear.
Select "Disk Utility" and click "Finish".
Go to "Reinstall OS X", click "Continue".
Select the disk to use. In most cases it is the only one available.
We follow the installer's instructions and finish.
The system has been reinstalled!

Restoring or reinstalling software

Mac OS X software

Mac OS X Utilities lets you do the following:

restore your computer disk using Disk Utility;

Chapter 4

There is a problem - there is a solution

Select a network from the Wi-Fi status menu in the top right corner of the screen.

If necessary, enter a password to access the network.

To connect to a closed network, select Connect to Another Network.
Enter your network name and password.

Recovering a disk using Disk Utility

If there is a problem with your computer or when loading
computer You see the Mac OS X Utilities panel, you may need to
restore computer disk.

Chapter 4

There is a problem - there is a solution

Select Disk Utility from the Mac OS X Utilities panel and click
"Continue".

Select a drive or partition from the list on the left and open the First Aid tab.

Click Repair Disk.

If Disk Utility can't fix the disk, try as much as possible
save the information in a backup copy and follow the instructions in the section
“Reinstalling Mac OS X and Apple Software” on page 97.

Information about Disk Utility and its settings can be found in the Help
center, or you can open Disk Utility itself (in the Utilities folder
in Launchpad) and select Help > Disk Utility Help.

Restoring information using a backup copy
Time Machine

If the backup is on a Time Capsule, make sure your Mac Pro is connected
to the same Ethernet or Wi-Fi network. (To connect to a Wi-Fi network, follow
instructions on page 95).

Chapter 4

There is a problem - there is a solution

In the Mac OS X Utilities panel, select Restore from Time Backup
Machine" and click "Continue".

Select the drive where the Time Machine backup is located, and then
follow the instructions on the screen.

Reinstalling Mac OS X and Apple programs

There are times when you need to reinstall Mac OS X and Apple programs.
When reinstalling the system, you can save all files and settings.

Important.

You can also reinstall and restore from the Mac OS X Utilities panel

Mac OS X Lion Server software, if installed on your
Mac Pro.

Make sure your Mac Pro is connected to the Internet via Ethernet or Wi-Fi.

"Continue".

When prompted to select a drive, select the current Mac OS X drive
(in most cases this is the only option available).

To install additional software, click
"Tune".

Click Install.

Chapter 4

There is a problem - there is a solution

In Disk Utility, format the partition scheme to GUID Partition (Attention! All data on the external hard drive will be erased) and select formatting type Mac OS Extended (Journaled).

Installing the system on an external drive otherwise completely duplicates the method described above. By booting from an external hard drive, you will have access to the data remaining in the old system.

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