Haddii aad u cusboonaysiisay Mac -gaaga macOS 12 Monterey laakiin sii wad inaad la kulanto arrimaha xasilloonida ama aad u aragto sifooyinka cusub inay liidato, had iyo jeer waxaad haysataa ikhtiyaarka ah inaad dib ugu dhacdo Big Sur . 

Waxaad haysataa siyaabo badan oo aad hoos ugu dhigi karto macOS Monterey ilaa Big Sur (tusaale, soo celinta kaydkii Mashiinka Time^{(restoring an older Time Machine backup)} ama isticmaalka Soo kabashada Internetka^{(using Internet Recovery)} ). Laakiin habka ka shaqeeya Mac kasta oo Big Sur-ku-^{(Big Sur-compatible Mac)} qaban kara waxaa ka mid ah in la tirtiro Monterey oo lagu rakibo Big Sur iyada oo la adeegsanayo ^{(Big Sur)}USB-ga^(USB) bootable . 

Xusuusin^(Note) : Haddii MacBook Pro , MacBook Air , iMac, ama Mac mini lagu soo raro macOS Monterey , ma hoos u dhigi kartid Big Sur ama nooc kale oo macOS ah.

Ku celi Mac gaaga

Hoos u dhigista macOS Monterey ilaa Big Sur waxay keeni doontaa luminta xogta. Markaa ka hor inta aanad bilaabin, waxaanu si adag kuugula talinaynaa inaad dejiso Machine Time^{(setting up Time Machine)} . Maadaama kaydinta Time Machine^{(Time Machine)} ee macOS Monterey ay si buuxda ula jaan qaadayaan Big Sur^{(Big Sur)} , waa inaadan wax dhib ah kala kulmin guuritaanka xogtaada ka dib habka hoos u dhaca.

Haddii aad horey u isticmaashay Time Machine , kaliya dooro Mashiinka Waqtiga^{(Time Machine)} > Back Up Now ee bar menu-ka. Haddii kale, mari tillaabooyinka hoose.

1. Ku xidh disk adag oo dibadda ah oo madhan ama SSD Mac gaaga . Fikrad ahaan^(Ideally) , waa in ay la mid noqoto ama ka badataa awoodda kaydinta gudaha.

2. Dooro astaanta Apple ee ku taal bar menu-ka oo dooro Nidaamka Preferences^{(System Preferences)} > Time Machine .

3. Dooro badhanka Dooro Backup Disk .^{(Select Backup Disk)}

4. Dooro darawalka dibadda oo dooro Isticmaal Disk^{(Use Disk)} . 

5. Sug ilaa inta uu ka samaysan yahay Time Machine oo uu ku ^{(Time Machine)}kaydiyo Mac^(Mac) - gaaga dibadeedka.

Taas beddelkeeda, waxaad koobi ka dhigi kartaa faylal kasta iyo faylal kasta oo muhiim ah gacanta dibadda ka hor intaadan bilaabin. Haddii aadan haysan qalab dibadda ah oo firaaqo ah, isku day inaad faylashaada geliso iCloud Drive^{(uploading your files to iCloud Drive)} (haddii aad ku saxiixday aqoonsiga Apple^{(Apple ID)} ) ama adeeg kale oo kaydinta daruuraha ah oo ku filan meel bannaan.

Soo deji macOS Big Sur Installer

Ka dib markii aad taageerto Mac kaaga , waa inaad soo dejisaa rakibaha macOS Big Sur adigoo isticmaalaya ^{(Big Sur)}App Store . Waxay miisaankeedu yahay 12 GB, markaa filo inaad sugto 1-2 saacadood ilaa soo dejintu dhammaato.

1. Dooro xiriirka hoose si aad u furto macOS Big Sur bogga soo dejinta ee Mac App Store . Haddii aadan isticmaalin Safari , dooro Furaha App Store^{( Open App Store )} ka dib markaad doorato xiriirka.

Soo deji macOS 11 Big Sur^{(Download macOS 11 Big Sur)}

2. Dooro badhanka  Hel .^{(Get )}

3. Dooro Download si aad u soo dejiso rakibaha Big Sur galka Mac ee Applications -kaaga .

4. Marka uu Mac -gaagu dhammeeyo soo dejinta Big Sur installer, waxay isku dayi doontaa inay bilowdo rakibaha-dooro Jooji^(Quit) ama taabo Command + Q si aad uga baxdo.

U samee Flash Drive-ka

Marka xigta, waa inaad diirada saartaa abuurista macOS Big Sur USB bootable ah . Taas awgeed, waxaad u baahan tahay flash drive maran oo leh awood kaydineed oo ugu yaraan 16GB ah. Markaa waa inaad ku qaabaysaa nidaamka faylka Mac OS Extended^{(Mac OS Extended file system)} .

1. Ku xidh flash drive-ka Mac gaaga .

2. Fur Launchpad ka oo dooro Wax kale^(Other) > Utility Disk^{(Disk Utility)} .

3. Xakamee-ku dhufo flash-ka ee ku yaal dhinaca bar- baraha Utility Disk^{(Disk Utility)} oo dooro tirtir^(Erase) .

4. Geli magaca wadista oo u deji qaabka Mac OS Extended (Journaled) . Kadib, dooro mar labaad tirtir^(Erase) .

5. Sug^(Wait) ilaa uu Disk Utility dhammeeyo habaynta wadista.

6. Dooro Done oo ka bax Utility Disk.

Samee Bootable Big Sur USB

Waa inaad isticmaashaa Terminal-ka Mac si aad u abuurto ^{(use the Mac’s Terminal)}USB-ga Big Sur^{(Big Sur USB)} ee bootable hadda marka aad dhammaysay habaynta wadista.

1. Fur Launchpad oo dooro Mid kale^(Other) > Terminal .

2. Geli amarka soo socda daaqadda Terminal -ka, adigoo ku beddelaya ^(Terminal)drive_name oo wata magaca flash-ka: 

sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia –volume /Volumes/drive_name

3. Taabo Gelida^(Enter) . Waxaad u baahan tahay erayga sirta ah ee maamulaha, markaa ku qor oo mar kale taabo Gelida^(Enter) .

4. Ku qor Y si aad u xaqiijiso inaad rabto inaad tirtirto flash-ka. Haddii aad aragto fariin soo booda ah oo ku weydiinaysa inaad bixiso ogolaanshaha Terminal si aad u gasho flash drive, dooro OK .

5. Sug^(Wait) ilaa Terminalku^(Terminal) dhameeyo abuurista USB-ga Big Sur^{(Big Sur USB)} ee bootable . Ka bax marka aad aragto Ku rakib warbaahinta hadda la heli karo^{(Install media now available)} .

Daar ka bixida dibadda T2 Macs

Haddii aad isticmaasho Intel Mac oo leh Apple T2 Security Chip^{(Intel Mac with an Apple T2 Security Chip)} gudaha, waa inaad kicisaa goob gaar ah oo u oggolaanaysa ka soo kabashada warbaahinta dibadda iyada oo loo marayo Soo kabashada^(Recovery) macOS . Tani ma khusayso aaladaha macOS ee ku shaqeeya Apple Silicon (tusaale, M1 Macs ).

1. Fur menu Apple oo dooro ^(Apple)Dib u bilow^(Restart) .

2. Qabo amarka^(Command) iyo furayaasha R oo dooro ^{( R)}Dib u bilow^(Restart) markale. Hayso ilaa aad ka aragto astaanta Apple . Soo kabashada^(Recovery) macOS waxay soo muuqan doontaa waqti yar.

3. Ka dooro Utilities > Startup Security Utility oo ku taal bar menu-ka.

4. Dooro Geli MacOS Password^{(Enter macOS Password)} oo geli eraygaaga maamulaha Sidoo kale, geli eraygaaga sirta ah ee Mac-ga (haddii loo baahdo).

5. Dooro batoonka raadiyaha ee ku xiga Oggolow kabixitaanka warbaahinta dibadda ama fog laga saari karo^{(Allow booting from external or removable media)} .

Fiiro gaar^(Note) ah: Haddii ay dhibaato kaa haysato rakibidda macOS Big Sur ka dib, dib-u-booqo shaashaddan oo deji Boot Sugan ^{(Secure Boot)}Amniga Dhexdhexaadka ah^{(Medium Security)} ama Amniga La'aan^{(No Security)} .

6. Ka bax Utility Security Startup^{(Startup Security Utility)} .

7. Fur menu Apple oo dooro Shut Down .

Ka Boot Flash Drive-ka

Hadda waa inaad Mac -gaaga ka soo saartaa USB-ga^(USB) si aad u gasho MacOS Recovery for Big Sur . Si kastaba ha noqotee, habka wax yar wuu ka duwan yahay iyadoo ku xiran haddii aad isticmaasho Intel Mac ama Apple Silicon Mac^{(Intel Mac or an Apple Silicon Mac)} .

Muhiim^(Important) : Haddii aad isticmaasho Intel Mac leh Apple T2 Security Chip , hubi inaad awood u yeelatid inaad ka soo saarto warbaahinta dibadda adoo isticmaalaya tilmaamaha kor ku xusan ka hor intaadan horay u socon.

Intel Macs

1. Xir Mac-gaaga.

2. Qabo furaha Xulashada^(Option) oo dib u shid si aad u gasho shaashadda xulashada boot.

3. Dooro macOS Big Sur USB bootable oo dooro Continue .

Apple Silicon Macs

1. Xir Mac-gaaga.

2. Dib u shid adiga oo hoos u dhigaya badhanka Korontada . ^(Power)Sii daa marka aad aragto fariinta ikhtiyaarka bilowga ah ee^{(Loading startup options message)} soo dejinta .

3. Dooro macOS Big Sur USB bootable oo dooro Continue .

Tirtir macOS Monterey

Soo kabashada^(Recovery) macOS ee Big Sur , waa inaad isticmaashaa Utility Disk^{(Disk Utility)} si aad u tirtirto xogta kaydinta gudaha ee Mac^{(erase Mac’s internal storage data)} . Haddi aanad horeba u haysan, tani waa fursadaada ugu danbeysa ee aad kaga baxdo Habka Soo-kabashada^{(Recovery Mode)} oo aad u abuurto kayd faylashaada

1. Dooro Utility Disk^{(Disk Utility)} > Ku sii wad^(Continue) liiska soo kabashada macOS.

2. Ka dooro Macintosh HD dhinaca bar-side oo dooro Tirtir^(Erase) .

3. Hayso magaca iyo qaabka caadiga ah - Macintosh HD iyo APFS - mid sax ah.

4. Dooro mar labaad tirtir^(Erase) si aad u xaqiijiso. Haddii aad aragto badhanka Tirtiraha Mugga Kooxda^{(Erase Volume Group)} , taas beddelkeeda dooro.

5. Dooro La Sameeyay^(Done) .

6. Jooji Utility Disk (dooro Utility Disk^{(Disk Utility)} > Exit Disk Utility ee bar menu). Mac -gaagu waa inuu ku noqdaa menu -ka Soo kabashada^(Recovery) macOS .

Ku rakib macOS Big Sur

Hadda waxaad ku rakibi kartaa macOS Big Sur Mac kaaga .

1. Dooro dib u rakib macOS Big Sur^{(Reinstall macOS Big Sur)} > Ku sii wad^(Continue) macOS Recovery for Big Sur menu.

2. Dooro Ku sii wad^(Continue) rakibaha macOS Big Sur.

3. Oggol shuruudaha shatiga oo dooro Macintosh HD meesha rakibida. Kadib, dooro Continue oo raac dhammaan tilmaamaha shaashadda si aad u rakibto nidaamka qalliinka.

Dejinta Big Sur & Xogta Tahriibka

Ka dib markii la rakibo macOS Big Sur , Mac kaaga ayaa laga yaabaa inuu ku weydiiyo inaad ku xidho internetka si uu isagu isu hawlgeliyo. Isticmaal xidhiidhka fiilooyinka ah ama dooro astaanta Wi-Fi ee dhinaca bidix ee sare ee shaashadda si aad ugu biirto barta Wi-Fi-ga ah. 

Taas ka dib, waxaad la kulmi doontaa Kaaliyaha Setup^{(Setup Assistant)} . Dooro^(Select) dalkaaga ama gobolkaaga oo ka shaqee habkaaga tilmaamaha shaashadda si aad u dejiso nuqulka cusub ee macOS Big Sur ee ^{(Big Sur)}Mac gaaga . 

Haddii aad isticmaasho Time Machine , dooro From a Mac ah, Time Machine kaabta, ama Startup disk^{(From a Mac, Time Machine backup, or Startup disk)} doorasho si aad u soo ceshano ka Time Machine kaabta. 

Ama, waxaad dib u soo celin kartaa xogtaada ka dib markaad dhammayso dejinta Mac . Si taas loo sameeyo, fur Launchpad ka oo dooro Mid kale^(Other) > Kaaliyaha Socdaalka^{(Migration Assistant)} .

macOS Monterey ilaa Big Sur hoos u dhigid Dhamaystiran^{(Big Sur Downgrade Complete)}

Tilmaamaha kor ku xusan waa inay kaa caawiyaan inaad si guul leh hoos uga dhigto macOS Monterey una guurto Big Sur^{(Big Sur)} . Haddii aad rabto inaad wakhti dambe samayso kor u qaadida Monterey , kaliya fur liiska ^(Monterey)Apple oo dooro Nidaamka Dookhyada^{(System Preferences)} > Cusboonaysiinta Software^{(Software Update)} > Hadda^{(Upgrade Now)} . Dhanka kale, ha ilaawin inaad dalbato wax cusboonaysiin ah oo dhibicda Big Sur adoo adeegsanaya aaladda Cusbooneysiinta Software .^{(Software Update)}

How to Downgrade From macOS Monterey to Big Sur

If you upgraded your Maс to macOS 12 Monterey but keep experienсing stabіlity issues or fіnd the new features underwhelming, yoυ always have the option of falling back to Big Sur. 

You’ve got multiple ways to downgrade macOS Monterey to Big Sur (e.g., restoring an older Time Machine backup or using Internet Recovery). But the method that works on any Big Sur-compatible Mac involves erasing Monterey and installing Big Sur via a bootable USB drive. 

Note: If your MacBook Pro, MacBook Air, iMac, or Mac mini shipped with macOS Monterey, you can’t downgrade it to Big Sur or another version of macOS.

Back Up Your Mac

Downgrading from macOS Monterey to Big Sur will result in data loss. So before you begin, we strongly recommend setting up Time Machine. Since Time Machine backups from macOS Monterey are fully compatible with Big Sur, you should have no trouble migrating your data after the downgrade process.

If you already use Time Machine, just select Time Machine > Back Up Now on the menu bar. If not, go through the steps below.

1. Connect an empty external hard drive or SSD to your Mac. Ideally, it should match or exceed the capacity of the internal storage drive.

2. Select the Apple icon on the menu bar and choose System Preferences > Time Machine.

3. Pick the Select Backup Disk button.

4. Choose the external drive and select Use Disk. 

5. Wait until Time Machine formats and backs up your Mac to the external drive.

Alternatively, you can copy any important files and folders to an external drive manually before you begin. If you don’t have a spare external device, try uploading your files to iCloud Drive (if you’re signed in with an Apple ID) or another cloud storage service with sufficient free space.

Download macOS Big Sur Installer

After backing up your Mac, you must download the macOS Big Sur installer via the App Store. It weighs in at 12 GB, so expect to wait for 1-2 hours until the download finishes.

1. Select the link below to open the macOS Big Sur download page on the Mac App Store. If you don’t use Safari, select Open App Store after selecting the link.

Download macOS 11 Big Sur

2. Select the Get button. 

3.  Select Download to download the Big Sur installer to your Mac’s Applications folder.

4. Once your Mac finishes downloading the Big Sur installer, it will attempt to launch the installer—select Quit or press Command + Q to exit it.

Format the Flash Drive

Next, you must focus your attention on creating a bootable macOS Big Sur USB. For that, you need an empty flash drive with a storage capacity of at least 16GB. You must then format it in the Mac OS Extended file system.

1. Connect the flash drive to your Mac.

2. Open the Launchpad and select Other > Disk Utility.

3. Control-click the flash drive on the Disk Utility sidebar and choose Erase.

4. Enter a name for the drive and set the format to Mac OS Extended (Journaled). Then, select Erase again.

5. Wait until Disk Utility finishes formatting the drive.

6. Select Done and exit Disk Utility.

Create Bootable Big Sur USB

You must use the Mac’s Terminal to create the bootable Big Sur USB now that you’ve finished formatting the drive.

1. Open the Launchpad and select Other > Terminal.

2. Enter the following command into the Terminal window, replacing drive_name with the name of the flash drive: 

sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia –volume /Volumes/drive_name

3. Press Enter. You need an administrator password, so type it in and press Enter again.

4. Type Y to confirm you want to erase the flash drive. If you see a pop-up message asking you to provide Terminal permissions to access the flash drive, select OK.

5. Wait until Terminal finishes creating the bootable Big Sur USB. Exit it once you see Install media now available.

Enable External Booting on T2 Macs

If you use an Intel Mac with an Apple T2 Security Chip inside, you must activate a specific setting that allows booting from external media via macOS Recovery. This does not apply to macOS devices running on Apple Silicon (e.g., M1 Macs).

1. Open the Apple menu and select Restart.

2. Hold down the Command and R keys and select Restart again. Keep holding until you see the Apple logo. macOS Recovery will show up momentarily.

3. Select Utilities > Startup Security Utility on the menu bar.

4. Select Enter macOS Password and enter your administrator password. Also, enter your Mac’s firmware password (if required).

5. Select the radio button next to Allow booting from external or removable media.

Note: If you have trouble installing macOS Big Sur later, re-visit this screen and set Secure Boot to Medium Security or No Security.

6. Exit the Startup Security Utility.

7. Open the Apple menu and select Shut Down.

Boot From the Flash Drive

You must now boot your Mac from the USB drive to enter macOS Recovery for Big Sur. However, the process slightly differs depending on whether you use an Intel Mac or an Apple Silicon Mac.

Important: If you use an Intel Mac with an Apple T2 Security Chip, make sure to enable booting from external media using the above instructions before you go ahead.

Intel Macs

1. Shut down your Mac.

2. Hold down the Option key and turn it back on to enter the boot selection screen.

3. Choose the macOS Big Sur bootable USB and select Continue.

Apple Silicon Macs

1. Shut down your Mac.

2. Turn it back on while holding down the Power button. Release once you see the Loading startup options message.

3. Choose the macOS Big Sur bootable USB and select Continue.

Erase macOS Monterey

In macOS Recovery for Big Sur, you must use Disk Utility to erase Mac’s internal storage data. If you haven’t already, this is your last chance to exit Recovery Mode and create a backup of your files.

1. Select Disk Utility > Continue on the macOS Recovery menu.

2. Choose Macintosh HD on the sidebar and select Erase.

3. Keep the default name and format—Macintosh HD and APFS—intact.

4. Select Erase again to confirm. If you see an Erase Volume Group button, select that instead.

5. Select Done.

6. Quit Disk Utility (select Disk Utility > Exit Disk Utility on the menu bar). Your Mac should revert to the macOS Recovery menu.

Install macOS Big Sur

You can now install macOS Big Sur on your Mac.

1. Select Reinstall macOS Big Sur > Continue on the macOS Recovery for Big Sur menu.

2. Select Continue on the macOS Big Sur installer.

3. Agree to the license terms and select Macintosh HD as the installation destination. Then, select Continue and follow all onscreen instructions to install the operating system.

Setup Big Sur & Migrate Data

After installing macOS Big Sur, your Mac may ask you to connect to the internet so that it can activate itself. Use a wired connection or select the Wi-Fi icon at the top-left of the screen to join a Wi-Fi hotspot. 

Following that, you will come across the Setup Assistant. Select your country or region and work your way through the onscreen instructions to set up the new macOS Big Sur copy on your Mac. 

If you use Time Machine, select the From a Mac, Time Machine backup, or Startup disk option to restore from Time Machine backup. 

Or, you can restore your data after you’ve finished setting up your Mac. To do that, open the Launchpad and select Other > Migration Assistant.

macOS Monterey to Big Sur Downgrade Complete

The instructions above should’ve helped you successfully downgrade from macOS Monterey to Big Sur. If you want to make the upgrade to Monterey at a later time, just open the Apple menu and select System Preferences > Software Update > Upgrade Now. In the meantime, don’t forget to apply any Big Sur point updates via the Software Update tool.

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