NTFS external hard drive will not mount Catalina 10.15.7 after security update on March 17, 2022

I'm referring to this user's answers..

germán22

User level:

Level 1

(13 points)

Mar 23, 2022 11:44 PM in response to blnickel

1. On my IMac running Catalina 10.15.7, after an update, the error "com.apple.DiskManagement.disenter error 49221" occurred.

2. After a web search for reports of the same problem, I decided to install the Paragon driver "NTFS_for_Mac.dng" and followed the installation instructions, including rebooting the computer.

3. The new driver failed to mount my external drives (SeaGate Backup plus portable drive).

4. I decided to uninstall the new driver.

5. Miracle! Like the donkey that played the flute. After rebooting the IMac, my two external drives appeared fresh and clean on the desktop, perfectly mounted and fully usable.

6. I hope a similar path will help those who cannot access their Seagate external drives.

7. Good luck!

If you are using Paragon or Tuxera, see this thread: NTFS external drives won't mount after se… - Apple Community

I have the exact same issue and it would be nice if apple could work fast on an update. It is not very practical to type commands into the terminal every time I want to mount an external HD. (thanks though to everyone finding a fast temporary fix)

Paragon says otherwise, which isn't surprising. Their reply to my email:

fter

the latest macOS 10.15.7 Catalina Security Update 2022-003 (19H1824),

issues have been reported with mounting NTFS volumes using the NTFS for

Mac driver. The Development team were able to reproduce and confirm the

issue. We expect it to be fixed in the next macOS updates.

For now, the following workaround can be tried:

1) Make sure you're using Microsoft NTFS for Mac by Paragon Software build 15.9.314

It can be downloaded from the ParagonBox user portal if you have a license registered there or directly from the site:

https://www.paragon-software.com/home/ntfs-mac/

Be sure to uninstall any previous versions as described below:

https://kb.paragon-software.com/article/4500

2) Connect the drive containing the NTFS partition, and make sure the partition is not mounted.

3) Open the Terminal utility (Application -> Utilities -> Terminal) and perform the following command to create a mountpoint:

 sudo mkdir /Volumes/ntfs

 4) Run the following command:

 diskutil list

 and note the NTFS partition's Identifier (disk0s3, for instance)

5) Run the following command to mount it:

sudo /Library/Filesystems/ufsd_NTFS.fs/Contents/Resources/mount_ufsd_NTFS /dev/diskXsY /Volumes/ntfs

where diskXsY - the NTFS partition from the previous step

(for instance)

sudo /Library/Filesystems/ufsd_NTFS.fs/Contents/Resources/mount_ufsd_NTFS /dev/disk0s3 /Volumes/ntfs

Please attach screenshots and new verbose logs if the issue is still present:

https://kb.paragon-software.com/article/8138

1. On my IMac running Catalina 10.15.7, after an update, the error "com.apple.DiskManagement.disenter error 49221" occurred.

2. After a web search for reports of the same problem, I decided to install the Paragon driver "NTFS_for_Mac.dng" and followed the installation instructions, including rebooting the computer.

3. The new driver failed to mount my external drives (SeaGate Backup plus portable drive).

4. I decided to uninstall the new driver.

5. Miracle! Like the donkey that played the flute. After rebooting the IMac, my two external drives appeared fresh and clean on the desktop, perfectly mounted and fully usable.

6. I hope a similar path will help those who cannot access their Seagate external drives.

7. Good luck!

I can’t even see the external HD in the finder. Have a seagate backup plus hub, too. The network icon appears on the finder where the external HD should be, and when I click on it a computer icon appears. All very weird. Diskutility sees it though, but can’t activate it.

Have also installed and uninstalled the new paragon driver for Mac.

I got the drive back to rw by removing Paragon (starting to think the issue is in that third party software) and manually enabling the native OSX ntfs support follow these instructions:

https://gist.github.com/CharlesThierry/7305166b208d6f6cdd37962761d5ac23

if you remove “nobrowse” from the end of the fstab entry, it will appear in the finder window, otherwise it’s there under /Volumes/<name of drive>

There is a warning with this that the Mac ntfs support maybe unstable. But I those reports date back to 2018 and I didnt find anything recent about it’s instability.

Thanks for the tips! This helps me greatly rather then going thru another way.. Just wan to let you know that this method helps me.. ;)

I tried the terminal thingy and it doesn't do much on my end.

Have a awesome week ahead!

I see for Catalina security update 2022 - 04 has been released on 16 May, has anyone installed this and does it now solve the NTFS hard drive not mounting issue? I heard from paragon that the Beta version of the latest update was working. Would like some positive news before I lose more hours on this issue. (I reinstalled Catalina and am waiting...) thanks!

It's not an Apple issue. It's a Paragon/Tuxera issue.

I ask for an apology. I hurried due to my excitement.

Actually, what happened is that the Finder was able to read the files on my external drives, but cannot write to them.

I installed the latest Paragon Software NTFS driver and the problem resolved for me.

https://www.seagate.com/support/external-hard-drives/portable-hard-drives/goflex/ntfs-driver-for-mac-os-master-dl/

Did not work for me.