Install the NEW hard drive back into Mac. Before you do this, there are a couple of screw-in pins that are in the sides of the old hard drive that you will need to hold your new hard drive in place. Use the T8 mini Torx screwdriver to remove them and place them into the sides of the new drive. These will hold your new drive. Sep 30, 2017 the MAC os is Lion 10.6 that followed with the iMac and the app. Store doesn't work, such that I cant get to the Mountain Lion, which I purchase in the app.-store? Sep 8, 2015 5:15 AM. Question: Q: How can I install OSX into a new hard drive without a CD?
Reinstall from macOS Recovery
macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu , which is also available in macOS Recovery.
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. Release the keys when you see an Apple logo, spinning globe, or other startup screen.
Command (⌘)-R
Reinstall the latest macOS that was installed on your Mac (recommended).
Option-⌘-R
Upgrade to the latest macOS that is compatible with your Mac.
Shift-Option-⌘-R
Reinstall the macOS that came with your Mac, or the closest version still available.
You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.
When you see the utilities window, you have started up from macOS Recovery.
2. Decide whether to erase (format) your disk
![Install new hard drive macbook Install new hard drive macbook](/uploads/1/3/3/2/133296638/808637958.jpg)
You probably don't need to erase, unless you're selling, trading in, or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue. Learn more about when and how to erase.
3. Install macOS
When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the onscreen instructions. You will be asked to choose a disk on which to install.
- If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
- If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
- If the installer is for a different version of macOS than you expected, learn about macOS Recovery exceptions.
- If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
If your Mac restarts to a setup assistant, but you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
macOS Recovery exceptions
The version of macOS offered by macOS Recovery might vary in some cases:
- If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. And Shift-Option-Command-R isn't available.
- If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might offer only the macOS that came with your Mac, or the closest version still available. You can upgrade to a later version afterward.
- If your Mac has the Apple T2 Security Chip and you never installed a macOS update, Option-Command-R installs the latest macOS that was installed on your Mac.
- If you just had your Mac logic board replaced during a repair, macOS Recovery might offer only the latest macOS that is compatible with your Mac.
If you can't get macOS Recovery to offer the installer you want, you might be able to use one of the other ways to install macOS.
Other ways to install macOS
- You can also install macOS from the App Store or Software Update preferences. If you can't install macOS Catalina, you might be able to install an earlier macOS, such as macOS Mojave, High Sierra, Sierra, El Capitan, or Yosemite.
- Or create a bootable installer disk, then use that disk to install macOS on your Mac or another Mac.
Summary: This post will show you solutions to fix the Mac not recognizing internal hard drive issue. Also, you can learn how to recover lost data from unrecoginzable Mac internal hard drive with data recovery software for Mac - iBoysoft Data Recovery for Mac.
Usually, the internal hard drive is the statup/boot drive for a Mac. It not only loads the operating system but also is responsible for storing data. Therefore, it is frustrating if your Mac doesn't recognize the internal hard drive and you can't access the data on this drive. What's worse, when you want to recover lost data, you find that you don't have any data backup. Luckily, according to your situation, this article will provide 4 feasible solutions for you to fix Mac not recognizing the internal hard drive.
Scenario 1: The internal hard drive can be recognized by Disk Utility
If your Mac doesn't recognize the internal hard drive, you can check if Disk Utility under Recovery Mode is able to recognize it. This really matters because if you can see the drive but the internal hard drive is not mounted in Disk Utility, your internal hard drive has no hardware problem and you can try the following solutions to fix your issue.
Solution 1: Repair with First Aid in Disk Utility
The issue that Mac doesn't recognize the internal hard drive could be fixed with First Aid under Recovery Mode. macOS Recovery is part of the built-in recovery system of your Mac, from which you can start up and use its utilities to repair certain logical errors of the internal hard drive.
Step 1: Restart your Mac and immediately press and hold Command + R keys to get into macOS Recovery mode, then release the keys when you see the Apple logo.
Step 2: Select Disk Utility in macOS/Mac OS X Utilities and click 'Continue'.
Step 3: Select the internal hard drive and run First Aid to check and repair errors in this drive.
Solution 2: Try to boot in Safe Mode
Booting in Safe Mode will check the errors in the directory of your internal hard drive. To boot in Safe Mode, you need to restart the Mac and hold 'Shift' immediately, and release it until you see the login window. When you see a 'Safe Boot' message on the startup window, you can restart the Mac and try to recover data from this internal hard drive.
Solution 3: Recover lost data and erase the unrecognizable internal hard drive
If the internal hard drive is not recognized by your Mac still, then the file system of this internal hard drive could have corrupted. Is there any other way that you can access the data on this unrecognizable internal hard disk? Of course. You can recover lost data from this unrecognizable internal hard disk with Mac data recovery software like iBoysoft Data Recovery for Mac. Then, you can reformat this internal hard drive so that you can use this drive again.
iBoysoft Data Recovery for Mac is professional Mac data recovery software. It can not only recover lost data from a Mac that is unbootable, but also recover documents, photos, emails, music, etc. from formatted/unmountable/inaccessible external drives. This software supports recovering data from encrypted APFS, APFS, HFS+, exFAT, FAT32 drives on macOS Catalina/Mojave/High Sierra/Sierra and OS X 10.11/10.10/10.9/10.8/10.7.
Reinstall Mac Operating System
Method 1: If you have only one Mac computer
Keyspan driver mac os x. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are as essential for the working of basic functionalities of the website. These cookies will be stored in your browser only with your consent. We also use third-party cookies that help us analyze and understand how you use this website. You also have the option to opt-out of these cookies.
Feb 03, 2020 When you are reformatting your Mac in Catalina you first need to delete the Macintosh HD – Data volume before deleting Macintosh HD. You do need to delete both, you can’t cut corners. As per the step above, start up your Mac in Recovery by holding down Command + R as the Mac boots up. Once Recovery starts up choose Disk Utility. Jul 02, 2020 Erasing your disk: For most reasons to erase, including when reformatting a disk or selling, giving away, or trading in your Mac, you should erase your entire disk. Erasing a volume on your disk: In other cases, such as when your disk contains multiple volumes (or partitions) and you don't want to erase them all, you can erase specific volumes on the disk. Mac os catalina cant delete from hard drive. Mar 23, 2020 It is easy to delete a hard drive partition on Mac running macOS Catalina or Mojave, just like creating one.In the past, you may have made a partition to install a beta version of macOS or run Windows on it. Now, if you are looking to get this storage back, you can effortlessly use Disk Utility to remove the hard drive partition.
If you have only one Mac computer, please directly run iBoysoft Data Recovery for Mac in macOS Recovery mode and recover lost data from the unbootable Mac computer. This method is greatly recommended because it is easier and more effective.
Method 2: If you have two Mac computers
Step 1: Download iBoysoft Data Recovery for Mac on another Mac, install and launch it.
Step 2: Click iBoysoft Data Recovery at the upper left corner of Mac menu bar and select 'Create Boot Drive'.
Step 3: Insert a USB drive into the healthy Mac computer.
Step 4: Follow the wizard to create a bootable recovery USB drive.
Step 5: After you have completed creating boot drive, insert this bootable USB drive into the failed Mac and press the Power button and Option key (⌥) to start the MacBook up.
Step 6: Select iBoysoft Data Recovery for Mac from the boot options.
Note: If you're running macOS Mojave or earlier, iBoysoft Data Recovery for Mac will launch immediately when your Mac boots up. But, if your Mac is running macOS Catalina, you need two additional steps to launch this program.
span>Step 7: Wait for your Mac to boot up, open 'Terminal' application from 'Utilities' drop-down menu.
Step 8: Run the following command:
Step 9:Follow the wizard to recover lost data from the internal hard drive.
Step 10: Restart the Mac, press and hold Command + R keys immediately to get into macOS Recovery mode.
![Mac Mac](/uploads/1/3/3/2/133296638/298049928.jpg)
Step 11: Select Disk Utility in the Utilities and click 'Continue'.
Step 12: Select the internal hard drive and click 'Erase' to reformat this drive.
And, unlike HFSExplorer, it offers full read/write access to Mac-formatted drives, so you can write to them from within Windows. It boasts improved speed, and we wouldn’t be surprised if it were faster than HFSExplorer. Format internal hard drive mac os x. And, if you just need to get files off of a Mac-formatted drive once, you can just use the trial and be done with the application by the time it expires.Option Three: Mediafour MacDrive Costs $50 to $70, But Includes More FeaturesMediafour’s is similar to Paragon’s HFS+ for Windows, but with more features and polish. But, if you just need to get some files off a Mac-formatted drive occasionally, this is overkill and you can save $20 by sticking with HFSExplorer.Paragon does offer a 10-day free trial of HFS+ for Windows, so you can give it a try and see if it works for you. Just install it, and Mac drives will show up like any other drive.If you need to work with Mac-formatted drives on a regular basis and you want the operating system integration, speed, and write access, Paragon HFS+ is a great choice and will be worth it for you.
Step 13: Return to macOS/Mac OS X Utilities in macOS Recovery mode and select 'Reinstall macOS'.
Reinstall Os X
After reinstalling the operating system, this internal hard drive could be showing up again.
Scenario 2: The internal hard drive cannot be recognized by Disk Utility
However, if your Mac can't recognize the internal hard drive, this internal hard drive might have some hardware problems. You can either send it to a local repair store, which could be costly, or say goodbye to this drive and buy a new one.