Select the drive or partition you need to repair and click the First Aid button. You may need to create an image file of your startup disk. In OS X Recovery, click the Disk Utility shortcut to launch the Disk Utility here. However, knowing Disk Utility can help should put your mind at ease. Keep holding the buttons until you see the Options window or a macOS Recovery screen. Throughout the life of your Mac you won't need to repair issues too often. If you're an advanced user, you may also find the RAID creation and management tool useful for your workflow. 1) Export them to another drive so I have a backup (if you dont already) 2). The functions supported by Disk Utility include. If your volume has 100 snapshots, then the time spent. And they will take a while, because each one is a full copy of the volume’s directory tree. Disk First Aid should inspect the snapshots. Reinstall the version of macOS originally found on your computer: Option-Shift-Command-R. Get to macOS/Mac OS X Utilities, select Disk Utility, and then click Continue. Disk Utility is a multi-purpose system utility developed by Apple for managing drives for use with macOS. On prior versions of macOS, Disk Utility did not have this support, but you could do it with command-line tools or third-party GUI tools (including CCC). In addition, you can perform several important backup and encryption tasks from within the application as well. Install the latest version of macOS that has compatibility with your device: Option-Command-R. Click Utilities from the menu bar and select Terminal from the drop-down list. If Disk Utility stopped repairing Macintosh HD in macOS, you can then try to fix it with Terminal. Keep in mind that if you attempt a RAID configuration, the most important first step is to back up all of your data! If you are in need of a good external storage option for your Mac, check out our list of best Mac accessories.ĭisk Utility is one of the most useful native macOS apps for troubleshooting issues with your hard drive. If a message says that the disk utility cannot repair the disk, go to the next solution. Add, delete, or erase APFS volumes Erase and reformat a storage device Encrypt and protect a storage device with a password. ![]() ![]() This gives me a good sense of security, as it. Intro to Disk Utility View all devices or only volumes File system formats Partition schemes Get detailed information about a disk Manage physical disks and volumes. RAID 10 (Mirrored set of Striped drives)Įach of these configurations has pros and cons, but each is seamlessly managed within Disk Utility by default. Format the drive and install a fresh copy of macOS, then use Disk Utility to erase the free space (typically the one-time write-with-zeros option).Within Disk Utility you'll find the option to create and manage four popular RAID versions:
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