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1. MAKE A BOOTABLE INSTALLATION REPAIR DISK FOR MOC OS X HOW TO
2. MAKE A BOOTABLE INSTALLATION REPAIR DISK FOR MOC OS X MAC OS X
3. MAKE A BOOTABLE INSTALLATION REPAIR DISK FOR MOC OS X INSTALL
4. MAKE A BOOTABLE INSTALLATION REPAIR DISK FOR MOC OS X UPGRADE

If, instead of this message, the test returns a message like "The volume System was found corrupt and needs to be repaired", then it is time to start fixing the problem. Or, if you want to test, say, an external storage device that you named "Movies" and you are not in the Volumes folder in terminal your command should look like this: diskutil verifyVolume /Volumes/Movies/Īfter some time (depending on the size of the tested volume), a message will be displayed that will tell you of the current state of your drive (see image)Īs you can see, after I've tested my Mac's hard drive (named System), the message was "The volume System appears to be OK". In order to do that, you need to type the following command (make sure you replace with the actual name of your volume):: diskutil verifyVolume įor example, if you want to test your Mac's hard disk, you just need to type: diskutil verifyVolume / Now, it is time to verify your volume and determine if it needs to be repaired or not. If you have performed the previous step to view the connected drives, then you can skip the /Volumes part of the commands that will be presented below. The following commands are written in their general form (can be written right after starting the terminal, without accessing the Volumes folder in order to view the connected devices). Switched to Volumes Directory ls - this will list names of all the connected drives You can do that using two simple commands: cd /Volumes - this will change the active folder under terminal to your hidden Volumes directory Once you have done that, you need to check the names of the volumes that are currently connected to your system. The first thing you need to do is start Terminal (/Go/Utilities/Terminal).

MAKE A BOOTABLE INSTALLATION REPAIR DISK FOR MOC OS X MAC OS X

In this guide, I will show you how you can repair a disk on Mac OS X using the command-line. This could come in handy in situations when you can't or don't want to use Disk Utility for some reason. However, this can also be performed using the command-line. Mac OS X comes with an easy-to-use application, called Disk Utility, that allows users to verify and repair hard disks using a graphical user interface and it is recommended for most Mac users that are not comfortable using the terminal. Updated December 2019: Everything is up to date through macOS Catalina.How to Repair a Disk on Mac OS X from Command Line If you have any more questions about reinstalling macOS on your Mac, let us know in the comments.

MAKE A BOOTABLE INSTALLATION REPAIR DISK FOR MOC OS X HOW TO

How to set up and customize your Mac from scratch Questions? If you're starting from scratch, you'll need to set up your Mac from scratch. Your Mac will now go through the normal macOS installation process, eventually restarting.

MAKE A BOOTABLE INSTALLATION REPAIR DISK FOR MOC OS X INSTALL

Click on the drive on which you wish to install macOS.How to reinstall macOS while in Recovery mode If you're running macOS High Sierra or later on a Mac with an SSD, your choices will be some form of APFS. Click on the format you want to use for your drive.Click on your startup disk in the Disk Utility sidebar.If you want the content on your Mac to stay intact, skip to the next section. If you need to start completely fresh, then you'll want to erase your startup disk using Disk Utility. How to erase your startup disk in macOS Recovery mode First Aid will run, checking the health of your Mac's drive. It should be the drive at the top of the sidebar if there are multiple drives. Click on your Mac's startup drive in the Disk Utility sidebar.Click Disk Utility when in macOS Recovery.You'll need to use Disk Utility to do that. The first thing you'll want to do is make sure your Mac's startup disk is healthy.

How to check your startup disk with Disk Utility in macOS Recovery mode Press Shift - Option - Command - R to install the version of macOS that came with your Mac, or the version closest to it that's still available.

MAKE A BOOTABLE INSTALLATION REPAIR DISK FOR MOC OS X UPGRADE

Press Options - Command - R to upgrade to the latest version of macOS that's compatible with your Mac.