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How to fix com.apple.DiskManagement.disenter error 0 on Mac?

Updated on Saturday, April 20, 2024

iBoysoft author Connie Yang

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Connie Yang
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Fix 'com.apple.DiskManagement.disenter error 0' on Mac

Summary: If you see the error message "com.apple.DiskManagement disenter error 0" when manually mounting a disk in Disk Utility, follow this post to get solutions. Notably, use iBoysoft Data Recovery for Mac to recover data from the unmountable drive ASAP in case permanent data lose.

com.apple.DiskManagement disenter error

In general, you go to Disk Utility to check your external hard drive that's not showing up in Mac Finder. But when you click the Mount button in Disk Utility to manually mount the greyed-out drive, an error message pops up, which reads like "Could not mount disk2s2 (com.apple.DiskManagement.disenter error 0)" or similar as below:

So, what does the com.apple.DiskManagement.disenter error mean? And how to get rid of the error to make your hard drive mountable? Take it easy. This post will give you the explanation and workarounds to fix "com.apple.DiskManagement.disenter error 0" and similar errors.

fix com.apple.DiskManagement.disenter error

Table of Contents:

Overview of solutions to fix the com.apple.DiskManagement.disenter error on Mac:

WaysSpecific stepsApplicable scenarios
Restart MacClick the Apple menu > RestartTemporary bugs make the drive not mount on Mac.
Check the compatibility of the drive's file systemOpen Disk Utility and click on the hard drive. The file system of the drive will list on the right pane. 
macOS supports these file systems at present: APFS, HFS+ (or Mac OS Extended), exFAT, FAT32, NTFS (read-only support)
File system incompatibility leads to the disk not mounting on Mac.
Uninstall Paragon/Tuxera NTFS for Mac1. Uninstall Paragon/Tuxera NTFS for Mac with its built-in uninstaller or move it to Trash. 
2. Open ~/Library/Caches to remove its leftovers.
Paragon/Tuxera NTFS for Mac's poor system compatibility causes NTFS drives to not mount on Mac. For instance, macOS Catalina 10.15.7 security update creates glitches in Paragon/Tuxera NTFS for Mac.
Check the connections1. Eject the drive and replug it into another USB port on Mac. 
2. Change a cable.
Bug in connection process or faulty cable or USB port that leads to external hard drive can't be mounted on Mac.
Run Disk Utility First Aid to check the disk1. Open Disk Utility. 
2. Choose the drive and click First Aid.
Errors on the hard drive stop macOS from mounting the drive.
Mount the hard drive with the Terminal1. Open Terminal (Launchpad > Other). 
2. Enter diskutil list to find the unmountable drive's identifier. 
3. Enter diskutil mount /dev/disk1s2 to mount the hard drive. Replace disk1s2 with your unmountable drive's identifier.
The Mount option in Disk Utility is not working.
Force quit fsck_ext from the Activity Monitor1. Launch Activity Monitor and search fsck in the upper search box. 
2. Select fsck and click the X icon to quit it in all tabs, including CPU, Memory, Energy, Disk, and Network.
You've used fsck to check the unmountable drive and the fsck is stuck in the checking process.
Reformat the hard drive1. Free download iBoysoft Data Recovery for Mac on your Mac to recover files from your unmountable drive. 
2. Open Disk Utility and select the unmountable drive. 
3. Click Erase. 
4. Set a name and choose a file system for the drive. 
5. Click Erase and wait for the process to complete.
The hard drive is corrupted. All the above ways fail to mount the hard drive.

Free download iBoysoft Data Recovery for Mac to get files off the unmountable hard drive.

You can also watch this intuitive video guide: How to Fix exFAT External Drive DiskManagement.disenter Error 0?

What is disenter error?

The "com.apple.DiskManagement.disenter error 0" error message indicates that there are some problems on the drive or macOS, making the disk even cannot be mounted by the Mount feature in Disk Utility. Consequently, you can't access photos, videos, documents, or other files on the hard drive.

In detail, this error always shows up with different codes according to the macOS you are running and the hard drive you are using. So, you may see the error along with other codes rather than 0.

Why is your external hard drive not mounting on the Mac?

The external drive that is not mounting on the Mac may be caused by corruption, improper format, poor connection, or system bugs.

We also find that NTFS external hard drives won't be mounted on macOS Catalina 10.15.7 with Paragon/Tuxera NTFS for Mac software after a security update on March 17, 2022. So, the compatibility of Paragon/Tuxera NTFS for Mac is also a possible troublemaker.

Well, whatever your dilemma is, you can try to find out and fix the possible glitches to make your disk mountable and accessible again on macOS Sonoma, Ventura, Monterey, Big Sur, or earlier.

Share the post with others to fix com.apple.DiskManagement.disenter error together.

 

Priority tricks for fixing com.apple.DiskManagement.disenter error 0 (or other codes)

Sometimes, the mounting process will take a longer time than usual for unknown reasons. You can wait for a moment to let it mount. If the waiting makes no changes, you can try the tricks below to fix the com.apple.DiskManagement.disenter error 0 or with other codes:

Restart your Mac

Because sometimes, the unsuccessful mounting is caused by a temporary bug in macOS. Restarting your Mac will refresh the operating system and clear away the temporary system errors.

Check if the drive's file system is compatible with macOS

If the macOS can't read the drive, therefore it can't be mounted. For a Linux hard drive, it can't be read on Mac. And at present, macOS support these file systems:

  • APFS
  • HFS+ (or Mac OS Extended)
  • exFAT
  • FAT32
  • NTFS (read-only support)

However, some users find that when they insert an NTFS or exFAT drive into a Mac, this error also appears. That's because they format the drive on Windows but for cross-platform use. Not all Windows allocation unit sizes (block sizes) are supported by macOS.

You can try to update your macOS to fix this issue or reformat the drive on Mac. Recover data from the unmountable drive with iBoysoft Data Recovery for Mac before formatting to avoid permanent data loss.

Uninstall Paragon/Tuxera NTFS for Mac application

A special case is that if you have an NTFS external drive and use Paragon/Tuxera NTFS for Mac to make it read-write access on Mac, you can try to completely uninstall the NTFS driver. That's because some users report that the macOS Catalina 10.15.7 security update has created a glitch in the Drive Manager of Paragon/Tuxera NTFS for Mac, leading to the NTFS drive can't be mounted on Mac.

Alternatively, try using the latest version of iBoysoft NTFS for Mac. This NTFS assistant has powerful compatibility and function that can solve the macOS Catalina 10.15.7 bug and mount your NTFS drive on Mac successfully.

Share the simple tricks to help others fix com.apple.DiskManagement.disenter error.

 

Fix the com.apple.DiskManagement.disenter error 0 (or other codes)

If the hard drive still cannot be mounted on your Mac after trying the above priority measures, it shows that the com.apple.DiskManagement.disenter error 0 is caused by more complex issues.

Commonly, the corrupted format of the hard drive is the primary culprit. Under this circumstance, you can recover data from the drive with iBoysoft Data Recovery for Mac to avoid data loss and then reformat the disk.

Also, you can follow the ways listed below to troubleshoot the com.apple.DiskManagement.disenter error with different codes.

  1. Check the connections
  2. Run the First Aid feature in Disk Utility
  3. Using Terminal to mount the disk
  4. Force quit fsck_ext from the Activity Monitor
  5. Reformat the hard drive

 Note: For the internal hard drive, ways such as running First Aid, using Terminal, and reformating the drive and reinstalling macOS are suitable for fixing the "Could not mount Macintosh HD (com.apple.DiskManagement.disenter error 0)". But you need to try these solutions in macOS Recovery Mode as it happens on the startup disk. Or, you can refer to the 7 solutions for fixing Macintosh HD not mounted.

Check the connections

External hard drive mounting is an automatic communication process between the OS and the file system of the drive via the USB port. If there's a bug in the plugging process, something wrong with the cable, or the USB port not working, the external hard drive will fail to be connected or mounted.

You can try to eject and unplug the external hard drive and then replug it to another USB port on the Mac. Or replug the hard drive with a new matchable cable. If the external hard drive still doesn't mount automatically, mount it through the Mount feature in Disk Utility again.

Run the First Aid feature in Disk Utility

First Aid is a disk-checking tool on Mac. It can detect and repair errors related to the formatting and directory structure of a disk.  If there's a file system error caused by incorrect ejecting at the last time, a sudden power off, formatting, or other reasons, First Aid may solve it, and then the drive may be mounted.

  • Open Disk Utility and select the unmounted drive on the left sidebar.
  • Select "First Aid" and click "Run".

run First Aid feature to fix unmountable drives

After running First Aid, if the hard drive still cannot be mounted automatically, manually mount it via the Mount feature once again.

Using Terminal to mount the disk

As a command-line interface on Mac, Terminal allows you to control your operating system and make some changes. When there's a logical error in the process of mounting, the hard drive refuses to be mounted. But the Terminal can work as a bridge to let you take control of the core of the system and then mount the hard drive via command lines.

  • Open Finder > Applications > Utilities > Terminal.
  • Type the following command to show all the drives on Mac. Then, find the identifier of the unmountable drive. 
    diskutil list
  • Type the following diskutil command to mount the drive. Here the disk1s2 should be replaced with the identifier of your unmountable drive. 
    diskutil mount /dev/disk1s2

Force quit fsck_ext from the Activity Monitor

If you have used fsck to check the unmountable hard drive, this error may happen when the fsck is stuck in the checking process. Using Activity Monitor (the Mac Task Manager) can quit a process, even if it's in a loop or not responding. Thus, you can try to force quit the fsck in Activity Monitor.

  • Open Activity Monitor > search fsck in all tabs (CPU, Memory, Disk, etc.). 
  • When finding the fsck, select it and click the × icon in the upper-left corner. 
  • Select Force Quit.

force quit a process in Activity Monitor

Reformat the hard drive

If the mentioned ways still can't work on fixing the com.apple.DiskManagement.disenter error 0, it shows that the file system of the drive is probably severely corrupted. You have no choice but to reformat it.

Reformatting a drive will cause data loss. So, to prevent your data from permanent loss, firstly, you should recover data on the hard drive. Here recommend a useful data recovery software to you - iBoysoft Mac Data Recovery. It can help you recover data from an unmountable, corrupted, or inaccessible hard drive.

After recovering data, you can format the external hard drive on Mac:

Here's how:

  1. Open Disk Utility.
  2. Select the unmountable drive from the left sidebar.
  3. Click "Erase" on the top toolbar.
  4. Select a name and choose a file system for the drive.
  5. Click Erase.

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Tips to avoid com.apple.DiskManagement.disenter error

From the mentioned ways above, you can find that the issues that result in this error are complex. And some of the problems are probably due to your wrong operations in daily life. Keeping away the listed wrong operations will reduce the risk of encountering this error.

  • Don't directly unplug your external hard drive (You should right-click the hard drive and select Eject before unplugging it).
  • Don't download untrusted third-party software.
  • Don't forget to check your Mac and external hard drives with First Aid in routine.
  • Don't power off your Mac suddenly before shutting it down properly.

Final words

Don't feel panic when encountering the com.apple.DiskManagement.disenter error 0/49153/49244 or with other codes. This article offers complete solutions to help you fix the issue and mount your hard drives. Moreover, it also tells you why com.apple.DiskManagement.disenter error appears and how to avoid the error in the future.

FAQs about com.apple.DiskManagement.disenter error 0

A

You can follow these solutions:

1. Restart your Mac.
2. Reconnect the hard drive to another USB port on your Mac.
3. Manually mount the hard drive in Disk Utility.
4. Use the Terminal to mount the hard drive.
5. Recover data from the unmountable drive with iBoysoft and then reformat it.

A

1. Open Terminal.
2. Enter diskutil list into the Terminal window to find the identifier of the unmountable external drive.
3. Go on typing diskutil mount /dev/disk1s2. You need to replace disk1s2 with the identifier of your unmountable external drive.

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