If you made a Time Machine backup of your Mac, Migration Assistant can use that backup to restore your personal files, including apps and everything in your user account.
- Tip: You can use a shared Mac that's on the same network as your MacBook Air as a backup destination. On the other Mac, go to the Sharing pane of System Preferences, then turn on File.
- Click on Use Disk. It's in the lower-right corner of the dialog box. Check Back Up Automatically in the left pane of the dialog box if you want your Mac to back up at regular intervals. Check Show Time Machine in menu bar to create a shortcut in the menu bar to Time Machine preferences and backup status.
Dec 06, 2020 Mac Backup Guru helps you create an exact, bootable clone of your Mac's disk onto an external hard drive. The great thing about Mac Backup Guru is that it can even take older, partial backups and sync them up with what you have now to create a clone faster than starting from scratch. Apple includes its own backup software, Time Machine as part of the macOS. It's an exceptionally easy to use solution. All you need to do is plug in an external storage device, hard drive or SSD. Don't get caught out with lost data on your iPhone, or a Mac that won't start up. Make a plan to backup all of your documents and apps, then make sure you do — and test — that backup.
If you prefer to restore just a few files or earlier versions of those files, learn how to use Time Machine to restore specific files.
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Use Migration Assistant
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- If you need to reinstall macOS, do that before continuing. For example, if your Mac starts up with a flashing question mark, you need to first reinstall macOS.
- Make sure your Time Machine backup disk is connected to your Mac and turned on.
- Open Migration Assistant on your Mac. It's in the Utilities folder of your Applications folder.
If your Mac starts up with a setup assistant, which asks for details like your country and network, continue to the next step, because the setup assistant includes a migration assistant. - When asked how you want to transfer your information, select the option to transfer from a Mac, Time Machine backup or startup disk. Then click Continue.
- Select your Time Machine backup, then click Continue.
- Choose a backup and click Continue.
- Select the information to transfer.
In this example, John Appleseed is a macOS user account. If it has the same name as an account already on your Mac, you're prompted to either rename the old account or replace the one on your Mac. If you rename, the old account will appear as a separate user on your Mac with a separate home folder and login. If you replace, the old account will delete and then replace the account on your Mac, including everything in its home folder. - Click Continue to start the transfer. Large transfers might need several hours to complete.
If you need help, please contact Apple Support.
Learn more
If you read my previous post about how to format an external drive for Mac, you know that I bought a 2TB Seagate Expansion external hard drive and managed to create two partitions on the disk — one for Mac backup purposes, and the other for personal use.
In this article, I'm going to show you how to back up your Mac data to an external drive. You should back up your Mac on a regular basis, especially if you're planning to perform macOS updates.
I did this several weeks ago while preparing my MacBook Pro for a system update. You may also be interested in taking a look at the macOS Catalina slow issues we encountered during that process just in case you also want to upgrade your Mac to the latest operating system.
Please note that the backup tool that I used is Time Machine, a built-in app provided by Apple. If you want to back up your Mac data without using Time Machine, there are also other third-party Mac backup software worth considering.
Where is Time Machine on Mac?
Time Machine is a built-in app within macOS ever since OS X 10.5. To find it, click on the Apple logo on the top left corner of your screen, then select System Preferences.
In the Preferences Pane, you'll see the app located between 'Date & Time' and 'Accessibility'.
What does Time Machine Backup?
Time Machine is the easiest way to back up Mac. And the app is created and recommended by Apple. Once you have a timely backup, it's incredibly easy to restore all or part of your data in case of accidental deletion or a hard drive crash.
So, what kind of data does Time Machine backup? Everything!
Photos, videos, documents, applications, system files, accounts, preferences, messages, you name it. They all can be backed up by Time Machine. You can then restore your data from a Time Machine snapshot. To do so, first open Finder, then Applications, and click on Time Machine to continue.
Be aware that the recovery process can be only be conducted when your Mac can start up normally.
A Step-by-Step Guide to Backing up Mac to an External Hard Drive
Note: the screenshots below are taken based on an older macOS. If your Mac is running Mojave or Catalina, they will look slightly different but the process should be similar.
Step 1: Connect your external hard drive.
First, use the USB cable (or USB-C cable if you're on the newest Mac model with Thunderbolt 3 ports) that comes with your external drive to connect that drive to your Mac.
Once the disk icon shows up on your desktop (if it doesn't, open Finder > Preferences > General, and here make sure you've checked 'External disks' to let them show on the desktop), move on to Step 2.
Step 2: Select the disk for backup.
Now open Time Machine (I tell you how above) and select the disk you want to use. I have partitioned my Seagate drive into two new volumes, 'Backup' and 'Personal Use', as you see from the screenshot. I chose 'Backup'.
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Use Migration Assistant
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- If you need to reinstall macOS, do that before continuing. For example, if your Mac starts up with a flashing question mark, you need to first reinstall macOS.
- Make sure your Time Machine backup disk is connected to your Mac and turned on.
- Open Migration Assistant on your Mac. It's in the Utilities folder of your Applications folder.
If your Mac starts up with a setup assistant, which asks for details like your country and network, continue to the next step, because the setup assistant includes a migration assistant. - When asked how you want to transfer your information, select the option to transfer from a Mac, Time Machine backup or startup disk. Then click Continue.
- Select your Time Machine backup, then click Continue.
- Choose a backup and click Continue.
- Select the information to transfer.
In this example, John Appleseed is a macOS user account. If it has the same name as an account already on your Mac, you're prompted to either rename the old account or replace the one on your Mac. If you rename, the old account will appear as a separate user on your Mac with a separate home folder and login. If you replace, the old account will delete and then replace the account on your Mac, including everything in its home folder. - Click Continue to start the transfer. Large transfers might need several hours to complete.
If you need help, please contact Apple Support.
Learn more
If you read my previous post about how to format an external drive for Mac, you know that I bought a 2TB Seagate Expansion external hard drive and managed to create two partitions on the disk — one for Mac backup purposes, and the other for personal use.
In this article, I'm going to show you how to back up your Mac data to an external drive. You should back up your Mac on a regular basis, especially if you're planning to perform macOS updates.
I did this several weeks ago while preparing my MacBook Pro for a system update. You may also be interested in taking a look at the macOS Catalina slow issues we encountered during that process just in case you also want to upgrade your Mac to the latest operating system.
Please note that the backup tool that I used is Time Machine, a built-in app provided by Apple. If you want to back up your Mac data without using Time Machine, there are also other third-party Mac backup software worth considering.
Where is Time Machine on Mac?
Time Machine is a built-in app within macOS ever since OS X 10.5. To find it, click on the Apple logo on the top left corner of your screen, then select System Preferences.
In the Preferences Pane, you'll see the app located between 'Date & Time' and 'Accessibility'.
What does Time Machine Backup?
Time Machine is the easiest way to back up Mac. And the app is created and recommended by Apple. Once you have a timely backup, it's incredibly easy to restore all or part of your data in case of accidental deletion or a hard drive crash.
So, what kind of data does Time Machine backup? Everything!
Photos, videos, documents, applications, system files, accounts, preferences, messages, you name it. They all can be backed up by Time Machine. You can then restore your data from a Time Machine snapshot. To do so, first open Finder, then Applications, and click on Time Machine to continue.
Be aware that the recovery process can be only be conducted when your Mac can start up normally.
A Step-by-Step Guide to Backing up Mac to an External Hard Drive
Note: the screenshots below are taken based on an older macOS. If your Mac is running Mojave or Catalina, they will look slightly different but the process should be similar.
Step 1: Connect your external hard drive.
First, use the USB cable (or USB-C cable if you're on the newest Mac model with Thunderbolt 3 ports) that comes with your external drive to connect that drive to your Mac.
Once the disk icon shows up on your desktop (if it doesn't, open Finder > Preferences > General, and here make sure you've checked 'External disks' to let them show on the desktop), move on to Step 2.
Step 2: Select the disk for backup.
Now open Time Machine (I tell you how above) and select the disk you want to use. I have partitioned my Seagate drive into two new volumes, 'Backup' and 'Personal Use', as you see from the screenshot. I chose 'Backup'.
Step 3: Confirm backup (optional).
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If you have used another disk for backup before, Time Machine will ask you whether you want to stop backing up to the previous disk and use the new one instead. It's up to you. I selected 'Replace'.
Step 4: Wait until the process is complete.
Apple Macbook Pro 13
Now Time Machine will start to backup all your data. The progress bar gives you an estimate of how much time is left before the backup is complete. I found it a bit inaccurate: Initially, it said 'About 5 hours remaining', but it only took two hours to finish. It's worth noting that the remaining time may vary from case to case depending on the write speed of your external hard drive.
Backup Apple Macbook Pro 13.3
After about an hour and a half, it says only 15 minutes remaining
Step 5: Eject your external drive and unplug it.
When the backup procedure is completed, don't rush to disconnect your device as this could cause potential disk problems. Instead, go back to the main desktop, locate the volume that your external hard drive represents, right-click and select Eject. Then, you can safely unplug the device and put it in a safe place.
Final Words
Like any other hardware device, an external hard drive will fail sooner or later. It's best to make a copy of the data on your external drive — as they say, a 'backup of your backups'!
One good option is to use cloud storage services like iDrive which I've been using and I really like the app because it's super easy to use, and it also allows me to download Facebook photos automatically. Backblaze and Carbonite are also popular options in the market, though I am yet to give them a try.
I hope you find this tutorial helpful. I can't emphasize enough the importance of data backup these days, especially when my mid-2012 MacBook hard drive died all of a sudden. I've also seen cases where my friend's computer and hard drive failed. You can imagine their desperation. Without a proper backup, it's really hard to restore data. Although you could try a third-party data recovery program, chances are they won't get all your lost data back.
Anyway, the main takeaway I want you to have from this article is this: back up your Mac with Time Machine or another app, and create a second or third copy of those backups if you can.