If you can't unmount the drive on Mac with the aforementioned methods, you should force unmount the drive in Terminal. ![]() If, instead, the command returns the error, " Error: -69673: unable to unmount volume for repair," you need to force unmount the disk. Now, the drive will be grayed out in Disk Utility and you can re-run First Aid to check whether the issue is gone. Once it's done, Terminal will report back that the targeted disk or volume is unmounted. diskutil unmountDisk /dev/disk_identifierSuppose the identifier of the drive is disk2, then the command will be diskutil unmountDisk /dev/disk2. Execute the following command to unmount the drive in question.Note down the disk identifier of the drive that First Aid can't unmount on Mac.Run the command below to list all drives connected to your Mac.Open Terminal from the Applications > Utilities folder.Nevertheless, if your drive is exhibiting behaviors, such as: : (-69673)." If your drive is in good condition, it likely is actively used by other programs or processes, which are preventing First Aid to unmount it. There are several reasons for "Unable to unmount volume for repair. Recover lost files when facing 'Unable to unmount volume for repair' on Mac How to fix 'Unable to unmount volume for repair 69673' on internal drives? How to fix 'Unable to unmount volume for repair 69673' on external drives? Guide to "Unable to unmount volume for repair. Here, we will help you get your lost files back and fix the "Unable to unmount volume for repair. : (-69673)." As the message implied, the error occurs due to a volume could not be unmounted. However, it sometimes fails its job and shows the error that reads " Unable to unmount volume for repair. The formatting process may have been terminated or canceled midway due to any issue, or the storage device has been plugged out before the formatting could be completed.Disk Utility First Aid is the common go-to if you need to check and repair an internal or external drive on Mac. The USB device drivers may be outdated or your Mac may be running on an older version of macOS. Unstable connection may cause the erase process to terminate midway, thereby showing the "Erase process has failed" error on Mac. The external storage drive may not be connected or plugged in properly. This issue could also occur with the hard drive on your Mac. The external storage device or the flash device is infected with malware. The hard disk or the areas that you are trying to erase or format on your hard disk are corrupt. Below are some of the most common reasons: This error is also typically caused by a software conflict or an issue with your hard drive. Most of us aren't tech-savvy, so you might be asking yourself, what does this error actually mean? Well, this message is displayed when an attempt to erase a data storage device has failed because of hardware problems or other complications. In addition,this error shows alongside an icon of an internal SSD along with a red caution sign on the screen in the Disk Utility window. Click Done to continue", the details of this error vary depending upon the type of format that you are trying to erase like "couldn't unmount disk", "couldn't open device". While it's all entitled "Erase process has failed. It's common to come across this error if you are trying to erase a USB flash drive or an external hard drive on your Mac in the Disk Utility app. Why Does the Error Erase Process Has Failed Occur? This blog post will give you some information about it and the commonly workable tips on fixing the 'Erase process has failed' issue. You may be freaking out right now, but don't worry. If you're reading this article, your Mac has likely crashed or is showing this error, and the erase process has failed. For instance, if you try to format a corrupt USB, SSD, or any other kind of storage device using a Mac, you may encounter an error reading "Erase process has failed." It may be quite confusing and frustrating. But sometimes things go south unexpectedly. Mac computer makes life easier from various aspects: education, recreation, work, etc. Click Done to continue." How do I sort this? DU tries erasing, then tells me "Erase process has failed. I've clicked "Show all devices", selected the HD (as opposed to the individual partitions), gone with the default format (Mac OS Extended (Journaled) and scheme (GUID Partition MAP), and clicked Erase. ![]() I want to erase a partitioned (and fairly new) external HD, using Disk Utility, so I can repartition it. AnyRecover on PC Recover Deleted files from Win/Mac/Hard DriveĪnyRecover on Mac Recover Deleted files from Win/Mac/Hard DriveĪnyRecover on iOS Recover Deleted files from iPhoneĪnyRecover on Android Recover Deleted files from AndroidĬhat History Data Recovery Recover Deleted files from Win/Hard Drive
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