Perhaps it was corrupted - possibly by a program that doesn't understand GPT partition tables. Or perhaps you deleted the GPT table, and are now using an msdos partition table. Select the Location of the External Drive: After launching the Recoverit Mac data recovery software, follow these steps: Select the 'External Drive Location' where data was deleted or lost. Click the 'Start' button to initiate the process. Scanning for Lost Data: Data scanning will start in Recoverit.To make a Mac act as an external hard disk, you can put it in Target Disk Mode and connect it to another Mac with a FireWire or Thunderbolt cable, as follows.If you have saved all your crucial backup on the external drive, MacBook not recognizing external hard drive can lead to a data loss scenario. Whenever you connect your external hard drive to the USB port of your Mac computer, it shows up not only on the desktop but also in the Finder menu on the left-hand side under Locations or Devices.Due to various reasons which are mentioned below, you might find your external hard drive not showing up on Mac. External hard drives are not only renowned for their data storing capability but also for their portability function. Try making a fresh table, and using Parted's rescue feature to recover partitions.Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes.All these warnings are safe to ignore, and your drive should be able to boot without any problems.Refer to the following message from Ubuntu's mailing list if you want to learn more. MacOS to MacOS: Some Seagate external drives, such as the FreeAgent Go for Mac and FreeAgent Desk for Mac, come formatted in MacOS Extended format, which is supported by Mac OS 8.1 and later.External hard drives, thumb drives, USB drives, Flash memory cards, and devices like iPod are examples of storage devices that you can connect to your Mac using Thunderbolt, USB, or FireWire cables, or connect wirelessly using Bluetooth. Storage devices (such as A consequence of this enhancement is that some programs, like parted get confused about the drive's format and partition table, printing warnings such as:/dev/xxx contains GPT signatures, indicating that it has a GPT table.
Recent macOS Big Sur or Catalina update issue.Before you move on to find proven ways to troubleshoot external drive not showing up on Mac, let us first know how to recover data from it. Improper formatting on the external hard drive. Physical damage to the external hard drive. How to fix external hard drive not showing up Mac?Why is my external hard drive not showing up Mac? How to recover data if Mac not recognizing external hard drive? External Disk Drive Install Remo RecoverConnect the External Hard drive ProperlyThe first and foremost thing to do if your external hard drive not showing up on Mac is to check if the external hard disk is properly connected or not. How to Fix External hard drive not showing up on Mac? 1. Using this tool, you can easily restore data from MacBook Air, MacBook Pro, WD MY Passport, Seagate external hard drive, and many more.Steps to Recover data from External hard drive not showing up on Mac:Download and install Remo Recover (Mac/ Windows) > Launch the tool and click on Recover Volumes/ Drives option > Choose Volume Recovery and select the external hard drive that is not showing up on Mac to restore data from it > Click on Advance Scan button to start data recovery process > After scanning completes, select the files which you want to recover from your external hard drive not showing up Mac > Finally, click Save button to restore the selected files to any location of your choice. The tool supports recovery of more than 300 file types such as photos, videos, PDF files, audio files, raw images, Office files. Hence, make use of a different USB cable to connect the external hard drive to a Mac computer.Quick Note : If your MacBook is having USB-C or Thunderbolt 3 ports, then use USB-C to USB adapter to connect the external hard drive to your Mac. If your USB cable is damaged, then fixing it becomes a priority to access your external hard disk on Mac. If the USB cable is not properly connected to your device then, Mac won’t recognize the external hard drive. Accessing data from an external hard drive on Mac is dependent on the USB cable. Fix issues with the USB cableYour external hard drive not showing up on Mac can be due to the USB cable or HDMI cable connecting the external hard drive to your MacBook Pro or Air. It might look like child's play but inserting an external hard disk to another or healthy USB port can help you understand whether the issue is pertaining to the hard drive failure or USB cable. Follow the below steps to run the first aid utility to fix external hard drive corruption. Use Disk UtilityOnce you find out that the Mac device is not responsible for the external hard drive not showing up issue. Check out this article on how to make an external hard disk compatible with Mac. In case, if the external hard drive not showing up on both Mac devices, then connect it to a Windows computer.Quick Note: If your external hard drive is accessible on Windows 10 but not on Mac, then the external hard disk is formatted for Windows computers and not for Mac systems. If the external HDD is mounting on the new or different Mac, then the problem is with your old Mac. Use different Mac or Windows PCIf you still find your Mac not recognizing hard drive then, try connecting the external hard disk to a different Mac system, sometimes there might be a problem with your Mac computer itself.Connect your external hard drive to a different Mac to find out whether it is mounting on it or not. Thus, you can access all your files present on the external hard drive.( Note : If the Mac has already mounted your external hard drive (volume) then, the option Unmount will be displayed.) This will make your external hard drive option available on the desktop and in the Finder menu. If your external hard drive appears in the Disk Utility, right-click on the drive and select Mount. In case, if the first aid utility fails to repair the external hard drive or SSD , this indicates the following 2 reasons A) Your external drive is severely corrupt or broken: If First Aid Disk Utility fails to repair the drive, it could be due to the RAW or broken drive. Using this method, you can easily repair minor corruption and access an unrecognized external hard drive on Mac. After running the First Aid, if the Disk Utility detects any issues or errors on the external hard drive then, click Repair Disk. Now, choose the First Aid option and click Run. ( Note : To repair your inaccessible or not showing external hard drive Run First Aid.) Format unrecognized External hard driveFormatting the external HDD on Mac leads to a data loss scenario. In the same way, if the external hard drive or USB is formatted with the HFS+ file system then, no Windows operating system can support it.ExFAT and FAT32 are the two most common file systems that can be easily supported by both Windows and Mac operating systems.Now, the last thing to do to fix the external hard drive not showing up on Mac is to format it using the compatible Mac file systems like exFAT, FAT32, HFS+, or APFS. For example, if an external hard drive is formatted using the NTFS file system then, no Mac computer can read or write the external hard drive. Shortcut on microsoft word on mac for new commentSelect the external hard drive not showing up on Mac and click the Erase option This tool is compatible with all the versions of Windows and Mac operating systems including the latest Windows 10 or Mac Big Sur.To format external hard drive not showing up on Mac: Remo Recover (Mac/ Windows) is designed with advanced scanning algorithms to effortlessly recover files from corrupt, unrecognized, formatted, or inaccessible external hard drive on Mac. However, if the external hard drive is corrupt then, you should repair it using First Aid utility or format it with compatible Mac file systems like exFAT or APFS. Click on the Erase option and wait until the Disk utility function removes all the files present on the external hard disk and then reformat it with the selected file system.In most cases, editing the Preference setting to show the external hard drive on the desktop fixes the issue. (Select exFAT if you want to make sure it's compatible with PC and Mac, otherwise, Mac OS Extended (Journaled) is probably the best option) Click the Format button to choose the format type you want to perform on it.
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