- #Volume could not be unmounted disk utility install#
- #Volume could not be unmounted disk utility pro#
- #Volume could not be unmounted disk utility series#
- #Volume could not be unmounted disk utility mac#
#Volume could not be unmounted disk utility install#
If restarting the computer still results in files that are marked as 'open' then you may need to start your computer from your MacOS X Install disk and run the Disk Utility from there to repair the drives. Sometimes, restarting the computer can cause the operating system to 'close' the 'open' files and things can get back to normal. If a file is flagged as 'open' then the drive cannot be unmounted.
#Volume could not be unmounted disk utility series#
The state of a file being 'open' or 'closed' is actually a series of bits that the computer uses to identify the current 'state' of the file. Typically when this error message is encountered, it is because there are files that are 'open' on the disk. No matter what you wind up doing, do NOT format the disk. The question is not IF your hard drive will fail - it's WHEN will your hard drive fail. If the information you are storing is valuable, then make more than one extra copy of it. I can't believe how many people still fail to make backups of their backups. IF it can be mounted, I would then IMMEDIATELY copy the student's projects onto another drive before doing anything else.
#Volume could not be unmounted disk utility mac#
Once Disk Utility has loaded, choose the disk you wish to repair - the default name for your system partition is generally "Macintosh HD", and choose 'Repair Disk'.If I were in your shoes, I would take the external drive to another Mac and see if it can be mounted there.
![volume could not be unmounted disk utility volume could not be unmounted disk utility](https://forums.macrumors.com/proxy.php?image=https:%2F%2Fi.imgur.com%2FDjMSMbN.jpg)
It should give you some diagnosis to confirm whether your drive is viable, or needs to be repaired. It will appear similar but not the same as this: /dev/disk0s2. Once you've loaded Disk Utility, select 'Verify Disk' and allow your Mac to check the disk. Now perform the original task that threw the Couldn’t Unmount error. You can locate Disk Utility within your Applications -> Utilities folder, or by searching "Disk Utility" in Spotlight. Hold down the OPTION key during boot, then select the attached boot drive (typically has an orange icon at the boot menu) At the boot menu, choose Disk Utility (if using an Installer disk, pull down the Utilities menu to access Disk Utility) Go to First Aid and verify the disk, then repair if needed.
![volume could not be unmounted disk utility volume could not be unmounted disk utility](https://cdn.cultofmac.com/wp-content/uploads/2014/02/recovery-HD.jpg)
This requires the computer to be booted in Recovery mode, and as repairing the internal partition can have serious repercussions, we advise performing a back-up of any crucial data before proceeding. It can also be used on your internal partition if you are having trouble with OS X. The most obvious example would be when there is drive corruption caused by improperly removing external USB storage. NOTE: Use of the ‘sudo’ command may not be necessary for some of these actions, however, as long as you know the administrator account’s password, starting any unix command with ‘sudo’ will force the command to be run as the unix root user, so you shouldn’t have any permission.
#Volume could not be unmounted disk utility pro#
Type in the new name for the drive (in this case, ‘OWC Mercury Elite Pro mini’), make sure that ‘MacOS Extended (Journaled)’ is selected as the format, and click Erase (see screenshot below). 3) Hopefully you can now perform your desired erase, partition, installation or deployment on this drive.
![volume could not be unmounted disk utility volume could not be unmounted disk utility](https://www.sugarfire.net/wp-content/uploads/2019/09/paragon-ntfs-for-mac-15-menu-bar-light-and-dark.jpg)
Repairing Disks using OS X's Disk Utility can be a useful way to improve performance, and in some scenarios, recover lost data. 2) In Disk Utility, click on the drive ‘Untitled’ to select it in the left sidebar, then click the Erase button at the top of the window. As much a we all try to protect our computers, sometimes issues do arise with the drives where you store your data.