Is there anything else I should try before I wipe the drive with a hammer?įor good luck there isn't anything on the disk that isn't backed up.
#DISK UTILITY COULD NOT UNMOUNT DISK MAC#
Click the Apple logo > Restart to reboot your Mac to reset the system processes that may have been disrupted while using it. Desktop diskutil list /dev/disk0 (internal, physical): : TYPE NAME SIZE IDENTIFIER 0: GUIDpartitionscheme 1.0 TB disk0 1: EFI EFI 314.6 MB disk0s1 2: AppleAPFS Container disk1 1.0 TB disk0s2 /dev/disk1 (synthesized): : TYPE NAME.
#DISK UTILITY COULD NOT UNMOUNT DISK MAC OS#
On the left sidebar of Disk Utility, click the Eject icon next to your SD card or hard drives to safely eject the disk. I'm on a Mac OS Catalina trying to wipe a drive via command line. As the Disk Utility window will open, you can view the Macintosh HD and the available partitions (or the external sources). When I try to erase it from Terminal (diskutil eraseDisk APFS External /dev/disk3) I get this:Įrror: -69825: Wiping volume data to prevent future accidental probing failed Solution 1: Reboot your Mac and run Disk Utility First Aid. Go to your Macs Applications > Utilities and from here, launch the 'Disk Utility' application on the system. Diskutil list shows my iMac's Fusion Drive, then the problem disk: : (-69825)ĭiskWarrior Version 5.2 does not see the disk at all. Wiping volume data to prevent future accidental probing failed. When I try to erase it with Disk Utility I get this:Įrasing “WD My Passport 260D Media” (disk3) and creating “Untitled” Running First Aid on “WD My Passport 260D Media” (disk3)Ĭouldn’t modify partition map. When I try I get this in the details box: When I click on Info in Disk Utility it reports:ĭisk Utility sees the disk, but will not run First Aid.
The Hard Disk does not show up in finder. If Disk Utility cant repair your disk, or you receive a report that the First Aid process failed, try to repair the disk or partition again. I am now running Monterey 12.0.1 on on iMac18,3, Quad-Core Intel Core i5, 3.4 GHz I left it for a couple of hours, but it did not fix itself, so I did a hard restart on my computer. I think the problem started when I was using the disk and my computer froze.
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