- #Mac volume could not be unmounted how to
- #Mac volume could not be unmounted install
- #Mac volume could not be unmounted pro
I then unplugged the cable and plugged it back in. I then went to Finder and did an Eject, though I'm sure I could have done that manually. The command First Aid ran is fsck_hfs -fy -x /dev/disk2s2 It runs with a -fy -x rather than just -y. I noticed that First Aid runs fsck but with different options than what was running automatically.
#Mac volume could not be unmounted install
Unmount the EFI partition Also unmount WINDOWS partition if you can see it from Mac Run the Install macOS Sierra from Apps.
![mac volume could not be unmounted mac volume could not be unmounted](https://i.imgur.com/Db9Zb0i.jpg)
Then in the Disk Utility I selected external disk drive and ran First Aid.Īfter First Aid completed, about 2 hours later I was able to Mount the disk through Disk Utility. Question: Q: First aid could not unmount the volume for repair More Less Apple Footer This site contains user submitted content, comments and opinions and is for informational purposes only. That stopped the fsck that had made the disk busy.
![mac volume could not be unmounted mac volume could not be unmounted](https://i.imgur.com/i6qANyy.jpg)
In terminal I ran - ps aux | grep fsck followed by sudo pkill -f fsck The reason it was busy was that fsck ran as soon as I plugged the disk in.
#Mac volume could not be unmounted how to
I tried the various fixes suggested to do it manually in Terminal. Btrfs is a computer storage format that combines a file system based on the copy-on-write (COW) principle with a logical volume manager (not to be confused. How to erase an encrypted Macintosh disk and install a fresh OSYou can donate to my channel on my homepage and/or leave positive feedback thank you My cust. Had the same issue and have been fighting it for days. If you want to preserve the volume as opposed to erase the drive, here are steps. (Drive originally formatted/used on an High Sierra Mac.) Also tried an iMac which refused to mount it.
#Mac volume could not be unmounted pro
I've done all of the above several times.Īny ideas for untrashing this 2TB Seagate drive? Using a MacBook Pro with High Sierra. When I try to reboot, the desktop icons disappear, the reboot never finishes and I end up forcing a shutdown via the power button. resulted in "Unmount of disk2 failed: at least one volume could not be unmounted."
![mac volume could not be unmounted mac volume could not be unmounted](https://recoverit.wondershare.com/images/article/2020/03/could-not-unmount-disk-7.jpg)
which resulted in an error that it was already unmounted or "has a partitioning scheme so use 'disk util unmountDisk' instead" which resulted in an error -69888: Couldn't unmount disk. Go back to the macOS Utilities screen and select Reinstall macOS. Name, Scheme, Format, etc.) to reformat the disk and click Done when finished. But finally I solved it by first restarting the Mac, then formatting my external ssd on a Windows PC to exFAT with aus 128 kb. Select the unmountable Macintosh HD from the sidebar. macos disk-utility partition ssd external-disk. Sudo diskutil eraseDisk JHFS+ Reformat /dev/disk2 When I try first aid on the volume named External SSD it says: 'Volume could not be unmounted' When I list the disks on terminal, it shows my ssd. Disk Utility failed to unmount the Data partition and reported the TM partition was OK, but I can't eject either without issues: Trying to reformat a drive that was used for an employee's Time Machine and Data storage. If you get an error message saying cant unmount disk mac terminal, it usually means a process on your Mac is attempting to modify your boot disk but is unable.