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1. #Format external hard drive mac disk erase failed how to
2. #Format external hard drive mac disk erase failed pro
3. #Format external hard drive mac disk erase failed mac

#Format external hard drive mac disk erase failed mac

#Format external hard drive mac disk erase failed how to

Here is how to mount an external hard drive on Mac: If you can't find the external hard drive on the desktop or in the Finder, you can try to make the disk online manually in Disk Utility (a native disk management tool in your Mac). Solution 1: Force mount this external hard drive in Disk Utility If Mac could not mount the external hard drive on the desktop still, let's troubleshoot this issue with the following solutions. When your external hard drive does not appear on the desktop, you can open Finder, choose "Preference" (or press Command +, ) and check "External disks" both in the General tab and in the Sidebar tab to show your external hard drive on your Mac computer. However, if they try and plug in the external hard drive normally, the Mac doesn't recognize the disk. Strange but true, some users found that their external will mount properly when they plug it in exceptional slow motion. Re-plug your external hard drive to another port or try another USB cable.Ī faulty connection, though it is foolproof, might be the key fix if the LaCie thunderbolt drive is not mounting, in that users always forget to check if the port is wobbly or if the cable is broken. In case you miss anything necessary, you can first have some basic checks as follows:ġ.

First, try some simple tricks to mount an external hard drive on Mac Hopefully, you'll be able to open this external hard drive on Mac again. To access your external hard drive on Mac, try the solutions suggested in this part one by one. Fix external hard drives not mounting issue on Mac Now, let's make the external disk accessible on Mac. If not, recover important files from this unmountable external hard drive first to avoid data loss. Check if you have a copy of a data backup. Any further operation is very likely to overwrite your original files and make them unrecoverable.ģ. Do not run First Aid to directly repair the disk if you didn't restore data from it or back up it. Reformatting will wipe the data on this disk and cause serious data loss.Ģ. Do not go straight to reformat this not-mounted external hard drive unless you've restored data from it or backed up it before. Dos and Don'ts When External Hard Drive Not Mounting on Macīefore you go further, it's better to know what you can do and can't do.ġ. Note: You need to save the recovered files to another usable drive.Īfter having successfully restored all data on this drive, you can set out to erase this external hard drive to fix the disk not mounting on the Mac issue. Knowledge Base: What does 'Mount' mean on Mac Why can't access the external hard drive on Mac

Dos and Don'ts When External Hard Drive Not Mounting on Mac Recover data from an external hard drive that won't mount Wondering "why my external hard drives won't mount on Mac"? This post explains the reasons and teaches how to fix this disk problem without losing data. I can't do First Aid as my LaCie external drive does not mount on the MacBook Pro. The main drive is greyed out in Disk Utility and the partition is not showing up. Now after updating, macOS is not mounting this external hard drive.

#Format external hard drive mac disk erase failed pro

"I have a 500 GB LaCie external hard drive, formatted as macOS Extend journaled on MacBook Pro 2014 and I have been using it to do Time Machine backups. So, it's annoying when you find that your external hard drive is not mounting for the error or not recognized by your Mac, just like the user below. Usually, an external hard drive will appear (aka mounted) automatically on your Mac once you plug it in, and you can access data on this drive.