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. 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. That stopped the fsck that had made the disk busy. 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. I tried the various fixes suggested to do it manually in Terminal. 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. 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." 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. Sudo diskutil eraseDisk JHFS+ Reformat /dev/disk2 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.
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