How to Fix ExFat Drives on Mac

Hey guys this is how you fix your exfat drives on mac!

Boot into single user mode using command s at boot
Connect disk after boot
fsck_exfat /dev/disk1s1
This does verification when logged into bash (single user) and makes sure the partition can be scanned

To verify and check what disk you need to repair,

diskutil list

(this shows the disks currently connected to the computer)

this is for file exit code 1, idk if it will work for other exit codes.
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[BrentAlexander_Photography]

@Eric Parker- Correct! If you don't want to reboot:

Step1: Open Terminal and type: sudo diskutil list and enter your password.
Step2: Identify external drive, in my case /dev/disk3.
Step3: in terminal type: sudo fsck_exfat /dev/disk1s3


But thanks for the quick tutorial! Once I saw what you were doing it all made sense!

[cfagerstrom]

Instead of booting to single user mode, just open terminal (command+space bar and type terminal) and then add sudo to the front of the `fsck_exfat /dev/disk1s1` command. It will prompt for your normal login password and then give you the same privileges and allow you to run the command.

[DJRonnieG]

When I encounter the same issue on a Mac, my quick/easy fix is indeed to plug it into a PC and to run the "repair" which windows automatically offers to run. "chkdsk /f" also does the trick. Your method is just as good with regard to outcome and is useful for when a PC is not available to run the repair.

[EricParker]

You don't need single user mode, you can use sudo.

[batrbmr]

I was so agitated with this same issue I had been facing since past three days. But today was meant to be a different day, a day destined to bring happy surprises. As usual I tried to mount the exfat drive on my mac by inserting it into one of my usb ports. But no, not even this time it was being able to get mounted. I had already been through many disgusting fellows today and now I had to face this. This shot my temper and I became very furious. I started hitting onto my furniture and banging other stuffs. This continued for about 7 minutes and then I returned to my MacBook still infuriated. But the thing that I saw then completely shocked me. I couldn't believe my eyes as I could see the disk mounted. How did it happen? Was it a miracle or maybe some supernatural intervention. I am not sure. The only thing I am sure is that after my disk got mounted my temper got cooled out and I have spent the last two hours happily after the incident took place.

[Seathasky]

Worked great! This fixed my 4tb exfat drive that wasnt mounting! Thank you!

[AlbertBislick]

Can you make a more in depth video step by step how its done I'm finding it difficult to do mine

[DinomadeAventura]

My Ex drive wasn't mounting. So I killed ExFat process (via Activity Monitor), then, after mounted, it was read-only. So I ran First Aid Check. After 20 minutes, my 2GB drive was good again. Unmounted and mounted again, and it was all normal. fsck command is the same as First Aid.

[galenmccaw]

No matter what I tried, couldn't figure out the command. The drive shows on my disc utility as /disk3s2 but it wouldn't work. Any thoughts on what I'm doing wrong?

[anthonyhartman]

Is the purpose of this video to frustrate everyone who watches it and waste our time? If so, excellent work.

[vekhabeauty]

Didn't work me for me...h mm says:
** Checking volume.
** Checking main boot region.
Main boot region is invalid. Trying alternate boot region.
** Checking alternate boot region.
Alternate boot region is invalid.
** The volume could not be verified completely.

[rolyanos]

Nice, it does the trick!!! Helped on MacOS 10.14.6 Mojave

[moyfel]

Could you enter the command on your video? What is the purpose of showing something that is not irrelevant

[RandaVictor]

i tried all steps but it didn't work with me... still, the drive wasn't recognized :(

[creationsecho]

I'm so frustrated. I have no idea what you're saying to me. I'm with the guy below. This was so vague. I have no clue where to begin.

[fredrikdahlin]

I just waited 10 minutes and then suddenly it mounted. Also you can repair it in disk utility. Do that before you do what this guy says.

[stebianchivideo]

Hi guys. Please read @DJRonnieG's comment below. Fixing the exfat volume on Windows should solve the problem. Thank you DJRonnieG! ps. and thanks
PR Tech Reviews for opening this thread!

[Hazay]

Thanks for the video. I have a 3TB seagate go agent flex. It will not mount in OS X and windows shows it as 2 unallocated spaces. Unfortunately, when I go into disk utility I don't get the partition, where your's shows "toshiba". I have tried the commands in terminal and in super user mode, but no luck. My disk is only "disk2" it does not have any s0, s01, s02, etc.  Any ideas. I ran a file recovery program and it says that the partition is intact.  Thanks a bunch.

[hightone]

All I get is "No such file or directory"

[BensonNyasae]

The drive mounted by itself after around 10-15 minutes without any intervention.