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

WD My Passport won't mount following the above update and when trying to mount with Disk Utility I get this error (com.apple.DiskManagement.disenter error 49221.) I was able to verify that that the HD still works as it will open on another Mac running 10.15.7. Any suggestions or fixes out there?

iMac 27″, macOS 10.15

Posted on Mar 18, 2022 6:56 PM

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Posted on Mar 22, 2022 4:57 PM

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

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

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