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Fix com.apple.DiskManagement.disenter error 49180 on Mac

Updated on Monday, April 8, 2024

iBoysoft author Connie Yang

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Connie Yang
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How to fix com.apple.DiskManagement.disenter error 49180?

Summary: Read this post to fix the hard drive not mounting on Mac - com.apple.DiskManagement.disenter error 49180. You can find the causes and solutions of this error here. By the way, since the hard drive is unmountable, rescue the data on it with iBoysoft Data Recovery to escape data loss in the future.

disk not mounting disenter error 49180

You click the Mount button to try manually mounting the greyed-out exFAT, NTFS, FAT32, HFS+, or APFS disk in Disk Utility, only to get the error message saying: com.apple.DiskManagement.disenter error 49180.

Here's a similar case from the Apple Community:

I connect an SSD to my MacBook, but it is unmounted. When I click the Mount button for the volume, I get the message: Could not mount “MacBook“ (com.apple.DiskManagement.disenter error 49180.). Any advice?

The error 49180 means that the external hard drive not mounting on Mac. But don't worry, you can get the workarounds from this article to fix the disk not mounting - com.apple.DiskManagement.disenter error 49180 and learn about its causes.

Table of Contents:

Way Overview for fixing com.apple.DiskManagement.disenter error 49180

WorkaroundsSteps
Replug the external hard drive1. Right-click on the unmountable drive in Disk Utility or the desktop.
2. Choose Eject.
3. Wait a moment and replug the drive to your Mac.
Change a cable & try another USB port1. Connect the external hard drive to Mac with a new cable.
2. Try connecting the drive to another USB port on Mac.
Restart Mac1. Completely shut down your Mac.
2. Press the power button to turn on your Mac and meanwhile hit Option - Command - P - R for 20 seconds.
3. Release the key when seeing the startup screen appear twice.
Check the drive with First Aid1. Open Disk Utility.
2. Select the drive and click First Aid.
Use Terminal to mount the drive1. Check the disk's identifier in Disk Utility in the Device column.
2. Open Terminal and enter diskutil mount /dev/disk2s2. Replace disk2s2 with your disk's identifier.
Recover data and reformat the hard drive1. Free download iBoysoft Data Recovery for Mac to recover files from the unmountable drive.
2. Open Disk Utility.
3. Select the drive and click Erase.

Free download iBoysoft Data Recovery for Mac to help you rescue data from the unmountable hard drive on Mac.

Share the methods to help more people who also encounter this problem.

 

Why does com.apple.DiskManagement.disenter error 49180 appear?

This com.apple.DiskManagement.disenter error 49180 is a hint to tell you that the hard drive can't be mounted on your Mac with the Mount feature in Disk Utility. The causes that lead to the hard drive even not being mounted by the built-in Disk Utility Mount function include:

  • Faulty communication between the external hard drive and Mac.
  • The external hard drive is corrupted.
  • System errors.
  • Incompatible file system of the external drive.
  • Software conflicts.
  • Glitches from Paragon/Tuxera NTFS for Mac. (You can try iBoysoft NTFS for Mac which has high macOS compatibility)

Rescue data from the external hard drive not mounting on Mac

 Note: 
Since the external hard drive is not mounting on your Mac, you're recommended to recover files from the hard drive as a priority. 

On the one hand, the unmountable drive may experience further corruption in the future, leading to it even not being detected and showing up in Disk Utility. If that happens, only the hard drive repair lab can help you repair the drive and get out the files. And that usually costs a lot. 

On the other hand, the unmountable drive is caused by file format corruption to a large extent. In this case, you have to reformat the drive to make it mountable. However, formatting a drive will erase all data on it and reduce the data recovery rate for even data recovery software.

So, get down to restoring data on the unmountable external hard drive with iBoysoft Data Recovery for Mac first. This data recovery program supports recovering data from corrupted, inaccessible, and unmounted SSDs, HDDs, USB drives, and other devices.

Here's how to use iBoysoft Data Recovery for Mac to recover data from the unmountable hard drive on Mac:

  1. Free download and install iBoysoft Data Recovery for Mac on your Mac.
  2. Launch the software and select the unmountable drive from the window.
    scan external disk with iBoysoft Data Recovery 
  3. Click "Search for Lost Data" and let it scan the files on the drive. 
  4. Preview the scanning results and choose your want data, click "Recover" to save it to another external drive or to your Mac.
    preview the found files

Share the way to help others recover data from the external hard drive that's not mounting on Mac.

 

How to fix com.apple.DiskManagement.disenter error 49180?

The com.apple.DiskManagement.disenter error 49180 is a specific error of com.apple.DiskManagement.disenter error. To get rid of it and mount your drive for file access, follow the methods in this part.

Fix 1: Replug the external hard drive

Perhaps, there're certain unknown errors that stop the system from mounting and communicating with the external hard drive. You can safely eject the external drive and wait a moment, then replug the drive to your Mac.

Fix 2: Change a cable and try another port on the Mac

Notably, a faulty cable and USB port can also block your external hard drive from being mounted on a Mac. So, if you also change a cable and replug your drive to another port on your MacBook Pro, Mac Mini, or other models.

Fix 3: Restart your Mac

Restarting Mac can exclude the temporary system errors that cause com.apple.DiskManagement.disenter error 49180 and refresh macOS to let it auto-mount the drive again.

Fix 4: Reset NVRAM/PRAM

NVRAM (non-volatile random-access memory) or earlier PRAM stores the OS-related information to keep the Intel-based Mac running properly. If your Mac feedback you the com.apple.DiskManagement.disenter error 49180 when it can't mount the drive with its Mount functionality, you can reset NVRAM to sweep away the possible corrupted NVRAM settings that cause this problem.

To reset NVRAM/PRAM on an Intel-powered Mac:

  1. Press the power button for seconds to completely shut down your Mac and wait a moment.
  2. Press the power to turn on your Mac and meanwhile press down the Option + Command + P + R keys for about 20 seconds.
  3. Release all the keys until you hear the second startup sound or the Apple logo shows up and disappears twice.

Fix 5: Run Disk Utility First Aid to check the unmountable drive

The First Aid feature in Disk Utility supports checking the file system errors on the drive and repairing tiny ones. It is worth noting that don't do other operations on the drive when First Aid is verifying it. Otherwise, your drive may corrupt. That is why some users say that their drives won't mount after running First Aid.

Here's how to use First Aid to check and fix the unmountable external hard drive:

  1. Open Disk Utility (Launchpad > Other).
  2. Click on the unmountable drive from the left sidebar.
    select the external hard drive on Disk Utility sidebar
  3. Click First Aid on the top toolbar > Run.
    run First Aid to check disk on Mac
  4. Wait for First Aid to check and fix the drive.

After First Aid finishes checking, click the Unmount button in Disk Utility to mount the drive again.

Fix 6: Use Terminal to force mount the drive

When the Mount function in Disk Utility is not working, you can run commands in Terminal to force mount the drive.

  1. Find out the unmountable drive's identifier. Open Disk Utility and click on the unmountable from the left sidebar. Then, you'll find its identifier in the Device column.
    find disk identifier in Disk Utility
  2. Open Launchpad > Other > Terminal.
  3. Enter the command below to mount the external hard drive. You need to replace disk2s2 with your unmountable drive's identifier. Then, press Return. diskutil mount /dev/disk2s2run command in Terminal to mount hard drive on Mac

Fix 7: Reformat the unmountable external hard drive

If the above ways fail to fix the com.apple.DiskManagement.disenter error 49180 and mount the external hard drive, it can exclude that the external drive is already corrupted. In that case, you need to format the corrupted external drive to make it workable and mountable.

But it is worth noting that, formatting a hard drive will erase all data on it. So, if you don't want to lose your documents, videos, photos, or other files on the drive, you can use iBoysoft Data Recovery for Mac to rescue your data. Only a data recovery tool can get files off a corrupted and unmountable hard drive.

After data recovery, you can get about formatting the external hard drive on your Mac.

  1. Open Disk Utility and select the unmountable drive from the sidebar.
  2. Click Erase.
  3. Set a name for the drive and choose a format for it.
    format external hard drive on Mac
  4. Click Erase.

If you think this post helps you solve the com.apple.DiskManagement.disenter error 49180, tell more people.

 

FAQs about com.apple.DiskManagement.disenter error 49180

A

To fix a hard drive that won't mount on Mac, you can follow these ways:
Reconnect the hard drive to your Mac.
Run First Aid to check and repair the hard drive.
Run diskutil mount /dev/disk2s2 in Terminal to mount the hard drive. Replace disk2s2 with the identifier of your hard drive, which can be found in the Device: column in Disk Utility.
Recover data from the unmountable drive with iBoysoft Data Recovery and then format it.

A

To force mount an external hard drive, you can click the Mount button in Disk Utility. Or, you can run diskutil mount /dev/disk2s2 in Terminal to mount the hard drive. Note that you need to replace disk2s2 with your external hard drive’s identifier. You can click on the hard drive in Disk Utility, and on the Device column on the right pane, you can see the identifier of the hard drive.

A

To fix a corrupted hard drive on your Mac and enable it to store data gain, you need to format it in Disk Utility. But formatting a hard drive will erase everything on it. If you don't want to lose your data, you can use iBoysoft Data Recovery for Mac to rescue files from the corrupted drive first. Then, go to Launchpad > Other > Disk Utility and click the drive on the sidebar, then click Erase to reformat it.