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How to Fix My External Hard Drive Can't Mount on Mac?

My WD Easystore hard drive can't mount to my macOS Catalina. I do not want to erase the hard drive and the mount option in Disk Utility is grayed out. I tried restarting it and running the First Aid on the hard drive but it is not mounted to fix anything. It keeps showing the error message. The operation failed in S.M.A.R.T status: not supported (not sure if this means anything) and it sends this error message: Could not mount. (Com.apple.DiskManagement.disenter error 0). But I can use it on my PC, how to fix?

Best Answered by

iBoysoft author Sherry Song

Sherry Song

Answered on Monday, April 29, 2024

Hello, when you find your drive is not mounting on the Mac, you're suggested to try these fixes. And please recover data from your unmountable drive with iBoysoft Data Recovery for Mac, because some fixes may cause data loss.

(1) Check your drive's file system in the Disk Utility. You said you can mount it on the PC but not your Mac, maybe it is the NTFS file system. You should know that the NTFS drive not mounting on macOS Catalina 10.15.7 after the security update.

If it is the NTFS file system, please use iBoysoft NTFS for Mac, which can mount the NTFS drive on Mac successfully.

(2) Use the Terminal to mount the disk. Type diskutil list then enter diskutil mount /dev/your drive's name.

(3) Force quit fsck_ext from the Activity Monitor. 

(4) Reformat the hard drive. Erasing means losing all data, please do data recovery and backups with iBoysoft Data Recovery for Mac.

Also read: External Hard Drive Not Mounting on Mac, How to Fix it?

How to fix com apple Diskmanagement disenter error 0 on Mac?

 

 

 

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