one volume could not be unmounted mac terminal diskutil

One volume could not be unmounted mac terminal diskutil how to#
One volume could not be unmounted mac terminal diskutil for mac#
One volume could not be unmounted mac terminal diskutil software#
One volume could not be unmounted mac terminal diskutil free#

It can check the file system and try to repair the damages it finds. Solution 2: Run FSCK command from Single User ModeįSCK (File System Consistency Check) is Mac and Linux version of CHKDSK command in Windows. If you are receiving a constant result saying the process has failed, you can move to the next solution. Therefore, there might be a hope that it works after you rerun it. First Aid will try to verify and fix the content on the selected volume every time. On Apple's official Support page, users are encouraged to run First Aid more than once. We have concluded three methods for you to try one by one, hoping they can repair the corrupted external hard drive successfully without losing data. Generally speaking, if you can't run First Aid on an external hard drive to repair it, the solutions left for you to repair the corrupted external hard drive on Mac are limited.

One volume could not be unmounted mac terminal diskutil how to#

How to fix the corrupted external hard drive on Mac In the next section, you will learn what to do if the First Aid repairing process has failed on external hard drives. Most of the time, First Aid's failure on external hard drives is due to severe disk corruption which was brought about by improper ejection, physical damage, virus infection, or other reasons. It has the capability to detect and repair the damages to partition map, master directory block, device driver, and so on.īut why did Disk Utility's First Aid would fail on external hard drives? Read more > What does First Aid do in Disk Utility?įirst Aid in Apple's Disk Utility is a small utility designed to verify and fix minor problems of a drive, such as repairing the drive's data structures, fixing external hard drives not mounting on Mac, and external hard drives not readable on Mac and so on.

One volume could not be unmounted mac terminal diskutil free#

Recover Files Disappeared from External Hard Drive on MacĤ methods to recover disappeared/missing/deleted/lost files from USB external hard drives and SD memory cards on Mac computers with free Mac data recovery software. and works fine on the M1, M1 Pro, and M1 Max Mac.

One volume could not be unmounted mac terminal diskutil for mac#

Moreover, it is a data recovery tool for Mac that supports data recovery for encrypted APFS disks. In addition to external hard drive data recovery, it is also a tool that supports USB flash drive data recovery, SD card data recovery , and so on. It is able to recover deleted or lost data from unreadable/unmountable/formatted/corrupted external hard drives.

One volume could not be unmounted mac terminal diskutil software#

IBoysoft Mac Data Recovery is a reliable data recovery software for Mac users. Recover data from external hard drive on Mac This post will help you solve the First Aid not working problem and recover lost data from the troubled external hard drive.įirst of all, let's take quick look at what First Aid can do in Disk Utility. See Erase and reformat a storage device.Note: Only when you are using the external hard drive as a startup disk and run First Aid to repair it, you could see the error message to ask you to run First Aid from macOS Recovery.ĭon't worry.

You can’t delete or erase your startup volume. When the operation is finished, click Done. If the APFS volume you want to erase isn’t a member of a volume group, click the Erase button to erase the selected volume. If the APFS volume you want to erase is a member of a volume group, click the Erase Volume Group button to erase all volumes in the group, or click the Erase button to erase only the selected volume. If you want to change the format, click the Format pop-up menu, then choose an APFS format. See the Apple Support article About macOS Recovery.Įnter a new name for the volume, if desired. To erase the volume, you need to run Disk Utility in macOS Recovery.

If the Erase button is dimmed, the selected volume can’t be erased because it’s in use. If Disk Utility isn’t open, click the Launchpad icon in the Dock, type Disk Utility in the Search field, then click the Disk Utility icon. In the Disk Utility app on your Mac, select the APFS volume you want to erase in the sidebar. When you erase a volume, all the data on the volume is permanently erased, and the empty volume remains in the container.