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Fix com.apple.DiskManagement.disenter error 49153 on Mac

Updated on Monday, April 8, 2024

iBoysoft author Jenny Zeng

Written by

Jenny Zeng
Professional tech editor

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Jessica Shee

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How to fix com.apple.DiskManagement.disenter error 49153?

Summary: This article explains what com.apple.DiskManagement.disenter error 49153 is and how to eliminate it so that you can mount your external drive and access its files on Mac. For unmountable NTFS-formatted drives, you can download iBoysoft DiskGeeker to mount your drive in read-write mode.

com apple DiskManagement disenter error 49153 on Mac

Sometimes, you may receive the error "Could not mount "disk_name".(com.apple.DiskManagement.disenter error 49153)" when manually mounting your external drive in Disk Utility.

com apple DiskManagement disenter error 49153 in Disk Utility

It may occur on macOS Sonoma, Ventura, Monterey, Big Sur, Catalina, and other versions of operating systems. Users have also reported experiencing "com.apple.DiskManagement.disenter error 49153" on different types of storage devices of different brands, such as:

  • com.apple.DiskManagement.disenter error 49153 on Seagate external drives 
  • com.apple.DiskManagement.disenter error 49153 on SanDisk USB flash drives
  • com.apple.DiskManagement.disenter error 49153 on WD My Passport Ultra
  • com.apple.DiskManagement.disenter error 49153 on Lacie external SSD

Regardless of what brand or type of external drive you're using, you can learn how to fix "Could not mount "disk_name".(com.apple.DiskManagement.disenter error 49153) in this article.

Fix com.apple.DiskManagement.disenter error 49153 on Sonoma/Ventura/Monterey/Big Sur/Catalina:

How to recover data when encountering com.apple.DiskManagement.disenter error 49153?

If you don't want to lose your data, you can recover it before proceeding with iBoysoft Data Recovery for Mac.

It's a professional data recovery tool that enables you to retrieve lost files from unmountable external hard drives, USB flash drives, SD cards, SSDs, etc that are experiencing "Could not mount "drive_name com.apple.DiskManagement.disenter error 49153" on Mac.

It supports both Intel-based and Apple Silicon Macs running Mac OS X 10.11 El Capitan and later. Besides, it allows you to preview found files on the unmountable drive for free.

Take the following steps to recover data that becomes lost or inaccessible due to com.apple.DiskManagement.disenter error 49153:

Step 1: Download and install iBoysoft Data Recovery for Mac for free.

Step 2: Launch the software, select the unmountable drive, and click "Search for Lost Data."

Scan unmountable external drive on Mac for lost data

Step 3: After the scan is complete, you can preview files on the drive for free.

Preview files before recovery

Step 4: Check the box beside the files you want to restore, click the Recover button, and then you can save the recovered file to a different location.

Recover files from unmountable external drive on Mac

 

How to fix com.apple.DiskManagement.disenter error 49153 on external drives?

If you're unable to mount your external hard drive, USB flash drive, SSD, SD card, etc due to com.apple.DiskManagement.disenter error 49153, try the following solutions.

Fix com.apple.DiskManagement.disenter error 49153 on external drives/USB drives/flash drives and others:

  • Way 1: Mount your drive with iBoysoft DiskGeeker
  • Way 2: Repair your drive in Disk Utility
  • Way 3: Log out and log back in
  • Way 4: Restart your Mac
  • Way 5: Restart in Safe Mode
  • Way 6: Quit the fsck process
  • Way 7: Turn off Time Machine automatic backup
  • Way 8: Try it on another computer
  • Way 9: Reformat the unmountable drive

Way 1: Mount your drive with iBoysoft DiskGeeker

The first thing I suggest you try when encountering com.apple.DiskManagement.disenter error 49153 is to mount your drive with iBoysoft DiskGeeker. The reason for this is that it can solve multiple problems that may cause your external drive to not mount at once.

For instance, your drive may be NTFS-formatted and the current NTFS for Mac software is no longer compatible after upgrading your Mac. Or your drive is BitLocker-encrypted, which will usually invoke a com.apple.DiskManagement.disenter error when being mounted because Macs don't support BitLocker encryption.

These situations require a professional tool that has the ability to read and write to NTFS drives and unlock BitLocker encryption on Mac like iBoysoft DiskGeeker.

Even if your drive isn't formatted with NTFS, it is still worth a try, as it's a multi-functional disk management tool that allows you to mount and repair external hard drives, USB sticks, flash drives, SD cards, and other storage devices formatted in NTFS, exFAT, FAT32, Mac OS Extended, and APFS.

Here's how to mount your drive when facing com.apple.DiskManagement.disenter error 49153:

Step 1: Download and install iBoysoft DiskGeeker for free.

Step 2: Launch the app, select your unmountable drive from the left side, and click Mount.

Mount unmountable external drive on Mac with iBoysoft DiskGeeker

Step 3: If the drive is BitLocker-encrypted, click Unlock.

Unlock BitLocker encrypted drive on Mac using iBoysoft DiskGeeker

Step 4: If you still can't mount the drive, select it and click First Aid to repair it.

Repair unmountable drive on Mac using iBoysoft DiskGeeker

Hopefully, that has helped you mount the external drive on Mac. If not, continue with the other solutions below.

Way 2: Repair your drive in Disk Utility

The First Aid feature in Disk Utility can also check and repair errors on your drive and fix issues with file permissions, directory structure, and other disk-related problems that may be rendering "Could not mount com.apple.DiskManagement.disenter error 49153."

So, it's a good idea to try repairing your drive in Disk Utility. Follow these steps:

  1. Open Finder and launch Disk Utility from the Applications/Utilities folder.
  2. Click View > Show All Devices.
  3. Select the last volume of your drive and click First Aid > Run.
    Repair unmountable external drive on Mac using Disk Utility
  4. After the scan is complete, repair the next volume in order until the physical disk is checked.

Once the repair is finished, check if your drive or volume is mounted. If not, select it and click the Mount button again.

Way 3: Log out and log back in

Another way to fix com.apple.DiskManagement.disenter error 49153 on external drives is to log out of your Mac and then log back in. Simply go to the Apple menu and select Log out, then select your account to log in again.

Log out of your Mac

Way 4: Restart your Mac

A reboot can resolve all sorts of minor issues on a Mac. If you haven't tried it already, try rebooting your Mac. Safely eject the unmountable drive and unplug it from your Mac. Then restart your Mac and reconnect the drive.

Way 5: Restart in Safe Mode

Safe Mode is a common troubleshooting mode that can help you rule out third-party software interference, clear system caches, and quickly check your internal hard drive for errors. You can boot into Safe Mode and then restart your Mac normally to see if that mounts your external drive or USB drive.

Reboot into Safe Mode to fix unmountable drive

On an Intel-based Mac:

  1. Restart your Mac and immediately press and hold the Shift key when the screen turns off.
  2. Release the key when the login window shows up.
  3. Log in to your account (May need to do it twice).

On an Apple Silicon (M1 & M2) Mac:

  1. Shut down your Mac.
  2. Press and hold the power button on your Mac until seeing "Loading startup options."
  3. Select the startup volume.
  4. Hold down the Shift key and click "Continue in Safe Mode."

Once in Safe Mode, you should see the words "Safe Boot" in the menu bar. Go to Disk Utility to see if the drive is mounted. If not, click the Apple menu and select Restart to reboot your Mac.

Way 6: Quit the fsck process

If you have unplugged the drive before ejecting it from your Mac, the fsck process may be checking and repairing your drive, rendering it unmountable.

To verify whether the process is running, you can open Activity Monitor and search for it in the search bar. If it is working, you can either wait until it finishes its job (left the drive connected overnight) or quit the process by selecting it, clicking the x button, and selecting Quit.

Way 7: Turn off Time Machine automatic backup

If you receive com.apple.DiskManagement.disenter error 49153 when trying to mount a Time Machine disk, you can turn off Time Machine to fix the problem. Here's how to do it:

On macOS Ventura or later:

  1. Safely eject your Time Machine drive.
  2. Open the Apple menu > System Settings.
  3. Click General > Time Machine.
  4. Click Options.
  5. In the "Back up frequency" box, select "Manually."
    Turn off Time Machine on macOS Ventura or later
  6. Click Done.
  7. Restart your Mac.
  8. Connect the drive to your Mac again.

On macOS Monterey or earlier:

  1. Safely eject your Time Machine drive.
  2. Open the Apple menu > System Preferences.
  3. Select Time Machine.
  4. Uncheck the box next to "Back Up Automatically."
    Turn off Time Machine on macOS Monterey or earlier
  5. Reboot your Mac and reconnect the drive.

Way 8: Try it on another computer

If you can't mount an Apple SuperDrive or a generic external CD or DVD drive formatted with an old file system like HFS, try it on a computer with an older operating system. It seems that HFS is no longer supported since macOS Catalina. If you don't have another Mac available, you need to reformat it with a more advanced file system.

Way 9: Reformat the unmountable drive

If you still can't mount the drive on Mac, consider reformatting it in Disk Utility. This erases all content on it and gives it a working file system, which is often the most efficient solution to mounting issues on external drives. If you haven't restored data from the unmountable drive, use iBoysoft Data Recovery for Mac to get it back first.

Seeing that your data is secured, you can use the steps below to erase the drive:

  1. Open Finder, and launch Disk Utility from the Applications/Utilities folder.
  2. Click View > Show All Devices.
  3. Select the physical disk, which is often named with the manufacturer's name.
  4. Click the Erase button.
    Reformat the unmountable drive to fix com apple diskmanagement disenter error 49153
  5. Name your drive.
  6. Select APFS or Mac OS Extended (Journaled) as the format.
  7. Select GUID Partition Map as the scheme.
  8. Click Erase again.

Wait for the erase process to complete. After that, your drive should be automatically mounted in Disk Utility. If the erase process failed, read this guide to fix it: [Complete Guide] Disk Utility Won't Let You Erase Hard Drive

Read Also:

'com.apple.DiskManagement.disenter error -119930868' [Fixed]

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What is com.apple.DiskManagement.disenter error 49153?

com.apple.DiskManagement.disenter error 49153 is an error you may encounter when macOS fails to mount your drive or volume after you clicked the Mount button in Disk Utility. When your drive is not mounted, it will be grayed out in Disk Utility and won't show up in Finder or on your desktop.

Error 49153 can result from various reasons. Here are some common ones:

  • Your Mac has temporary system glitches.
  • Your external drive is corrupted.
  • Your external drive is formatted with an unsupported or incompatible file system, such as NTFS or HFS.
  • Your external drive was improperly ejected.
  • Your external drive is BitLocker-encrypted.

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FAQs about com.apple.DiskManagement.disenter error 49153

A

A com.apple.DiskManagement.disenter error often occurs when you click the Mount button in Disk Utility, as an indication of mounting failure. It has various codes. For example, besides error 49153, you may receive one of the following error codes:

com.apple.DiskManagement.disenter error 0
com.apple.DiskManagement.disenter errore 49244
com.apple.DiskManagement.disenter error 49221
com.apple.DiskManagement.disenter error 49223
com.apple.DiskManagement.disenter error -119930872
com.apple.DiskManagement.disenter error 49218
com.apple.DiskManagement.disenter error 53249

A

If you have tried to manually mount the drive in Disk Utility to no avail, you can repair it using First Aid and then try mounting it again. You can also try other solutions in this post.