Recovery HD for Mac OS isnt always the solution. However, if your Mac doesn't start up all the way, or you want to repair the disk your Mac starts up from, open Disk Utility from macOS Recovery: Apple silicon : Turn on your Mac and continue to press and hold the power button. In general, you can just open Disk Utility from the Utilities folder of your Applications folder.Disk Utility > Quit Disk Utility. Select the Mac OS Extended (Journaled), give a name to your disk and click on Erase. Select the startup disk and go to the Erase Tab. Select 'Disk Utility' and click on Continue. When you see the available startup disks, select one, then click the Up arrow (on Mac) or Turn your Mac on, while holding the CMD + R keys down. If you’re using a Mac Mini, wait for the system indicator light to turn amber.Safe Mode, sometimes called “Safe Boot,” contains an automatic startup check and repair that can fix these problems.To do this, restart your Mac and hold “Shift” while it’s booting. An exit code of “0” is a good thing, and means no errors were found.RELATED: Troubleshoot Your Mac With These Hidden Startup OptionsOne simple way to fix such errors is to boot your Mac into Safe Mode. You’ll see messages like “Storage system check exit code is 0” and “File system check exit code is 0” here.However, in some cases, your Mac may find disk or file system problems and be unable to repair them when you perform the above steps. Run First Aid in Recovery ModeRELATED: 8 Mac System Features You Can Access in Recovery ModeIdeally, that should be the end of it — especially if you used the safe mode trick above. You can reboot your Mac at this point. This will make the login process take longer than normal, so be patient.When it’s done logging in and you see a desktop, the disk check is done.
Order An Os Disk For My Mac OS Isnt AlwaysPress and hold the “Command+R” keys while it’s booting. Your Mac will be able to fix errors on your system drive from recovery mode.To do this, restart your Mac. From there, you can use Disk Utility in the same way. It can’t make changes to that system drive while it’s running from it.The solution is to boot into a special recovery mode. This is the thing you should try last, as Disk Utility in the recovery environment may work better and be more capable.To do this, start your Mac in single-user mode. You don’t need to do this if any of the above steps worked. The Disk Utility interface is the same one you’ll see on your Mac OS X desktop, but run it from here and it’ll be able to repair problems with your system drive.In some cases, even Safe Mode or Disk Utility in OS X Recovery won’t be enough to fix problems. You may need to boot your Mac into single-user mode and run the fsck (file system check) command the old-fashioned way. Select the drive or partition you need to repair and click the “First Aid” button. (If recovery mode doesn’t appear, restart your Mac and try pressing the keys again.)In OS X Recovery, click the “Disk Utility” shortcut to launch the Disk Utility here. Your Mac will load straight into recovery mode. Close word for mac 2011Assuming everything is fine, you don’t need to regularly perform disk first-aid checks. Run the above fsck command over and over until you see a “** The volume appears to be OK” message.When the fsck command says your disk is okay, type the following command at the terminal and press Enter:Your Mac will reboot, returning you to the usual login screen.The above steps should only be necessary if you’re experiencing errors with your Mac. The fsck command may find additional errors after repairing the first batch of errors, so Apple recommends you run the fsck command again if it found and fixed problems. This indicates the fsck command found and fixed problems. Type the following command into the terminal and press Enter to start a file system check:The command will run through several phases of checks. When it’s done, you’ll see a message saying “** The volume appears to be OK” if everything is fine.If it found problems, you’ll see a “***** FILE SYSTEM WAS MODIFIED *****” message.
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