Mac Recovery Mode Disk Utility

These Disk Utility to Repair Mac problem can cause mac system to work slow or give some unexpected problems. From there I was able to erase the mac's hard drive with JOURNALED selected. If Mac start-up disk goes corrupt, you have to launch Disk Utility via Recovery Mode. If that is the case, you have to boot your MacBook Pro in Recovery Mode via Disk Utility. If you did that already, all you have to do is to open the Disk Utility, select the Recovery HD, click on Mount it, double-click on the mounted Recovery HD, switch to show invisible files as well. Boot up your Mac and press CTRL + R before the Apple logo to enter recovery mode. Release T after about 20 seconds. When they do we can usually boot up Disk Recovery mode to try to deal with it. The Mac Recovery Mode is a dedicated module in the operating system that provides all kinds of firmware and disk-related options. the mac os x utilities pane appears 3. Once it is safely unmounted/ejected, you can shut it down. Mac's come with a built in tool called "Disk Utility" which can be used to clone your Mac Hard Drive. Mac SSD not Booting? Try 5 Fixes to Boot up Your Mac. To start with, reboot your Mac. This can be fixed in recovery mode. As long as you have macOS Sierra's Disk Utility, the process below should work. 0 of recouping all the lost data by this utility is flawlessly done in four different modes of the data recuperation: Quick Mode to recover, Exhaustive system for recuperation, Raw mode for data recovery and the last one is Disk Imaging. Once launched, type or paste in the following command. Guide to make a bootable Recovery HD partition for clover should also work for chimera Update log 6/21/2015 Added changes for Yosemite and clean up sorry for the delay I've been busy 1/22/2016 Added changes for El Capitan and clean up sorry for the delay Hi For those of you who wish to have a recovery partition that is bootable this is the. What I found (by running the GUI version of Disk Utility) was that I needed to run Disk Utility while in Recovery mode, so my Mac could unmount my drive to make the necessary fixes. Both recovery disk and Macintosh disk are locked and I am unable to just re-install. macOS native tools should be able to resolve the issue. Now when I hit command+R and go to disk utility Macintosh HD is not showing on the left side. Reformatting an External Hard Drive for MAC. Be patient because safe mode is slower. If your model has Firewire 800 (both would need to) then it won't cost much for the cable (should you not have one already), otherwise you'd be looking. 1 hard drive is set as the default, and then restart. Is created by default when you install Mac OS X for the first time. Make sure that your 8. Step 1: Go ahead and launch Spotlight on your Mac by clicking on the magnifying glass icon located at the top right corner of your screen. How to fix Mac boot-up problems in Recovery Mode. How to Convert MBR to GPT on Mac without Data Loss? In order to convert a MBR partition to GPT, you have to make use of a tool, GPT fdisk, to convert the partition. The recovery partition in a Mac helps in restoring it from TimeMachine or the Internet when there is a system failure.  This functionally puts a password on the logic board preventing the use of any pre-boot keyboard modifier keys. 1) Start your Mac computer by pressing the Power button. Target disk mode is a boot mode which allows you to browse and transfer files to and from a Mac internal hard drive without booting macOS. Directly launch into Recovery Mode by holding CMD+R when the startup chime plays. CleverFiles Disk Drill works well with Mac OS X 10. Mac Recovery Mode is a dedicated partition of the disk that contains a recovery image and an OS X installer duplicate. When your Mac starts up in Recovery Mode, if you want to perform a clean install onto freshly formatted storage: select Disk Utility, format the correct startup disk,. Click the 'Restore' tab (Mac OSX 10. How to check your startup disk with Disk Utility in macOS Recovery mode Click Disk Utility when in macOS Recovery. Open Disk Utility at the OS X Tools menu, and select your external drive device (not the drive itself). Step 4: Select the corrupted drive from the left panel of Disk Utility. To recover data from Mac hard drive on Windows PC, you can select "External Devices Recovery" to get started. This step is optional, but it’s a good idea because it checks the consistency of the hard disk before moving on. Click "Start" to go on. Verify and repair startup disk on OS X As much a we all try to protect our computers, sometimes issues do arise with the drives where you store your data. Release the keys. How To: Copy a data disk uing one optical drive using disk utility on OS X How To: Format an external hard drive for Mac OS X How To: Create a Bootable USB Drive for Ubuntu Using Mac or Windows How To: Format a hard drive with the Mac Disk Utility. Disk Drill can recover your lost pictures and photos, music, documents, applications, videos and other data. Plug it in and boot into Recovery Mode. However, the recovery mode and the options and settings come up with the same as their is no difference between every Mac and your virtual machine. Many times due to these problems mac system can crash. Choose Mac hard drive on PC You need to pick and tick the Mac hard drive now as an external hard drive so that Recoverit Mac Disk Recovery can scan the drive. If some of your data is recoverable you can use Disk utility within the recovery mode and see what is recoverable. Follow the steps to set up using Disk Utility. Despite its advanced features and high-performance, CopyCatX is very straightforward to handle. Install Mac OS X on your new drive. In Recovery mode, click on Disk Utility and press on Continue. Disk Utility Disk Utility is the name of a utility created by Apple for performing disk-related tasks in Mac OS X. USB Repair Tool on Mac. However, if you just need a simple backup and cloning utility, Carbon Copy Cloner does a great job. If you need access to command tools on your normal boot volume from Recovery Mode: hold Command-R to enter local Recovery Mode, open Disk Utility,. It turns out that erasing the disk before installing High Sierra was the solution. Run "Verify Disk" on the hard drive. The two methods are similar; the main difference is the need to boot from another volume instead of your normal startup drive. If the utility finds any irregularities then you'll need to start the Mac up from another volume - such as a Mac OS X install DVD - enter macOS Recovery, or start up from Internet Recovery and run Disk Utility to repair the disk. Restoring your Mac to factory setting implies that you are ready to format (hard - format) your Macintosh HDD (startup disk) and remove all of its content, installed applications, widgets, and the user-defined settings so that the MacBook Pro. If you encounter a situation in which you cannot start from the Mac's Recovery HD partition, such as when the internal hard drive has failed, or when you've installed a new disk. Mac Recovery - Recover Data from Mac Hard Drive --Thursday, October 19, 2017 Summary: This article mainly illustrates how to do disk recovery when mac hard drive went wrong and guides you to recover deleted files from hard drive on macOS Sierra with Mac Data Recovery. If transferring FileVault data from a previous Mac that uses 10. Repairing Mac’s disk. Brazilian software developer Matheus Mariano appears to have discovered a significant Disk Utility bug that exposes the passwords of encrypted Apple File System volumes in plain text on macOS High Sierra. It is a multifunctional Mac utility that enables the users to safely recover and restore data from Time Machine. Assuming that you are already in the Recovery Mode, click on Disk Utility and then click Continue. When I started up the Mac in Recovery Mode Disk Utility, the MacHD was replaced by a greyed out disk called 'Untitled'. Open Disk Utility, located in the Utilities folder in Launchpad. It'll boot into Recovery Mode, and you can click Disk Utility to open it up. There’s no need to hunt down paid partition managers or disk-management boot disks: your Mac includes a built-in partition manager and disk management tool known as Disk Utility. Step 6: Click "Run" button to start the repair on the specific drive. We need to access OS X's Recovery Mode to repair the startup disk, reinstall OS X or restore from a backup after a fatal failure that prevents your Mac from starting up properly. If Mac start-up disk goes corrupt, you have to launch Disk Utility via Recovery Mode. If often can fix more on the second run-through. Guide: How to create Shardana Antivirus Rescue Disk CD. CleverFiles Disk Drill works well with Mac OS X 10. Every Mac ships with Recovery mode, which lives on a separate partition on the startup disk. Do so, then choose Disk Utility from the Utilities menu. It sounds like you somehow deleted that, which you could have only done if you booted into internet recovery or you did something in single-user mode. Step 1 Restart your Mac and press Command + R during the reboot until the Mac boots into recovery mode. Tap “Disk Utility”. When your Mac is on the fritz, your first instinct may be to launch Apple's Disk Utility and select Repair Disk from the First Aid pane. This is how my Disk Utility version is patched hopefully someone finds it useful: The following patches will give you a Disk Utility with debug mode on and advanced image options on by default and capable of running on El Capitan. So Disk Utility failed in exactly the same way when trying to run first aid. The first thing is to boot your Mac into Recovery Mode: start your Mac and hold down the Command + R keys simultaneously until you see an Apple logo or spinning globe. Mac Recovery - Recover Data from Mac Hard Drive --Thursday, October 19, 2017 Summary: This article mainly illustrates how to do disk recovery when mac hard drive went wrong and guides you to recover deleted files from hard drive on macOS Sierra with Mac Data Recovery. So now, just like on Apple's mobile devices, you will see a loading bar telling you how far into the startup process you are. ’ Besides, the Recovery feature will supply you with the information helpful in troubleshooting over. Solution 1: format hard drive under macOS 10. Dear all, just check my hdd (SSD) in my Hackintosh but the disk utility tells me that my hdd should be verified/repair through a reboot and the use the Recovery HD mode (command-R) and then verify disk. Shut down your Mac and turn it on by pressing Command + R simultaneously for booting it into the recovery partition. In disk utility it is not letting me bring up any kind of menu by click on the drives. To do this, you can follow the steps below with your Crucial SSD installed in the drive bay of your Mac computer:. How to Reinstall Mac OS with Recovery Mode. Hold down the "Option" key as soon as your Mac starts up and wait for the start-up disk selection screen to come up on your monitor. (Disk Utility may be an option shown on the recovery mode screen or you may have to select it from the Utilities menu in the top-of-screen menu bar. How to restore a missing Recovery HD partition in Lion features in Lion such as Apple's FileVault 2 disk encryption and the "Find My Mac" location service as part of iCloud. Suppose your Mac couldn't be recovered in any other way, you might as well try Recovery Mode to diagnose disk problems, get help online or install the version of OS X that ran sometime on your Mac. You may use Disk Utility application to perform hard drive partition-related tasks on Mac Operating System, such as to format, repair, erase or create hard drive partitions and end up with an erased hard drive. And finally, click on First Aid button. So, how to use First Aid to repair disk and file system problems on Mac? Step 1: Hit Command and Space keys together to open Spotlight. Release the keys. Step 2: Type Disk Utility and click on Enter button. If you're encountering the same issue as said at the beginning of the article, that your computer gets corrupted, and you have to consider a complete restart in Recovery Mode. USB Repair Tool on Mac. What Is an OS X Recovery Disk? The OS X Recovery Disk is a native but hidden recovery volume on your Mac hard drive. Step 5: Click "First Aid" button on the top of Disk Utility window. Open Disk Utility (in Applications>Utilities). 4, see below. Close Disk Utility. Guide to make a bootable Recovery HD partition for clover should also work for chimera Update log 6/21/2015 Added changes for Yosemite and clean up sorry for the delay I've been busy 1/22/2016 Added changes for El Capitan and clean up sorry for the delay Hi For those of you who wish to have a recovery partition that is bootable this is the. In most cases, your Mac will have a local recovery partition based on the current OS X installation, that you can access; however, there may be. Brazilian software developer Matheus Mariano appears to have discovered a significant Disk Utility bug that exposes the passwords of encrypted Apple File System volumes in plain text on macOS High Sierra. Mac OS X 10. The OS X recovery utilities includes access to Disk Utility for managing storage volumes. 4 using the built-in utility to move data to a new machine, the data continues to be stored in the old sparse image format, and the user must turn FileVault off and then on again to re-encrypt in the new sparse bundle format. That allows you to run Disk Utility, reinstall or wipe and install the system. It is also available on Mac OS X software installation CDs and DVDs, and, in Mac OS X 10. 05: Creating Disk Images By Utilizing Disk Utility. The command-R only works for 10. Once booted into the Recovery partition or installer disc, select your desired language. So, in this editorial, I have explained how to repair disk and file system problems on your Mac in simple ways. Disk Utility in El Capitan is the renewed version of what it used to be in the earlier editions of Mac OS X. Reboot your Mac and hold down the command and r key down at the same time to enter Recovery Mode. Now, since you said that you were able to go into disk utility, you already know how to boot into Recovery Mode. It is a multifunctional inbuilt Mac utility that enables Mac users safely recover or restore their data from Time Machine, fix or wipe their hard disk, access online help and even to reinstall macOS. Log in to your Mac normally, and you should see the macOS Utilities app open. Launch Disk Utility in this mode and Fix Permissions on your drive. The OS X Utilities window appears. Windows Mac. The two methods are similar; the main difference is the need to boot from another volume instead of your normal startup drive. This function basically teaches you how to Clone a Mac's Drive with Disk Utility. If Mac start-up disk goes corrupt, you have to launch Disk Utility via Recovery Mode. After your Mac starts in target disk mode, you'll see it as a. We need to access OS X's Recovery Mode to repair the startup disk, reinstall OS X or restore from a backup after a fatal failure that prevents your Mac from starting up properly. How do I create or write to images to disk on Apple Mac OS X (macOS) Unix operating system with dd command? Create new disk images from USB or SD card Write images to disk or USB or SD card You also need to use diskutil command manipulates the structure of local disks including listing and unmouting. One of the main and most important features provided by the recovery mode is Mac's Disk Utility. With its help, you can repair your Mac’s hard drive. Since your machine isn't booting, sounds like it's probably too late for that unless you have another machine you can use in Target Disk Mode. Open Disk Utility at the OS X Tools menu, and select your external drive device (not the drive itself). Step 1 Restart your Mac and press Command + R during the reboot until the Mac boots into recovery mode. How To: Copy a data disk uing one optical drive using disk utility on OS X How To: Format an external hard drive for Mac OS X How To: Create a Bootable USB Drive for Ubuntu Using Mac or Windows How To: Format a hard drive with the Mac Disk Utility. By MacLife How To. NOTE: As of macOS 10. 3 Panther or later required). Or, you might find yourself staring at an unchanging gray screen. It takes up minimal space and provides handy tools in the unlikely event of problems with the machine. Choose the macOS High Sierra installer as your startup disk. Step 6: Click "Run" button to start the repair on the specific drive. x and later versions was Apple's Internet Recovery. We need to access OS X's Recovery Mode to repair the startup disk, reinstall OS X or restore from a backup after a fatal failure that prevents your Mac from starting up properly. Select Startup Disk. So Disk Utility failed in exactly the same way when trying to run first aid. Mac Recovery - Recover Data from Mac Hard Drive --Thursday, October 19, 2017 Summary: This article mainly illustrates how to do disk recovery when mac hard drive went wrong and guides you to recover deleted files from hard drive on macOS Sierra with Mac Data Recovery. Select the boot volume or partition from the left menu and click on the “Repair” tab. Boot your Mac into Recovery Mode by holding the command+R keys while it powers on. It is as dominant as on Windows or Linux platforms, even the cause for data loss too have been similar which includes human error, software corruption, virus / malware attack. MacOS Secret Trick: APFS to Mac OS Extended Reformat with Disk Utility!! No need for terminal commands I'm going to show you how to fix you MacBook hard drive using disk utility to reformat your. Then the last option left would be using the Recovery mode to diagnose disk problems. Disk utility can turn out to be the most useful tool when a Mac is in no boot situation or it boots to a grey screen and stuck on Apple logo with a loading bar. Boot your Mac from your recovery disk and run disk repair tools. Boot your Mac into Recovery Mode by holding Command-R at the boot chimes (hold Option-Command-R to load Internet Recovery, if needed). However, the recovery mode and the options and settings come up with the same as their is no difference between every Mac and your virtual machine. How to fix Macintosh HD greyed out in Disk Utility? As your Mac won't boot, all the solutions below are finished in Recovery Mode. Launch Disk Utility in this mode and Fix Permissions on your drive. Before we jump in to the process of how to factory reset your MacBook Pro, make sure that you have a current backup (these steps will work for any Mac running OS X or macOS). shown in Disk. Here are some easy steps for you to follow. Go to the macOS Recovery Mode. Select Disk Utility once a “Mac OS X Utilities” window appears; Сlick on your OS X hard drive and select Verify/repair disk and then wait while Disk Utility does its thing. Press and hold Option + Command + R keys to enter the Internet Recovery Mode. Here's How to use Disk Utility on a Mac. Time Machine is your backup feature for X OS which is built into the system. Open Disk Utility at the OS X Tools menu, and select your external drive device (not the drive itself). The command-R only works for 10. Special utility from cvad & russian MAC community for new hackintosh users. Boot up your Mac and press CTRL + R before the Apple logo to enter recovery mode. After First Aid completed successfully, try to boot into macOS again. Paragon Hard Disk Manager for Mac is the system and data management solution for Apple computers. If you have the time, my questions are these: 1. At the Mac OS X Utilities screen, select "Disk Utility". Fortunately, Mac comes with Disk Utility in a hidden location known as a recovery partition. Recovery Mode Recent Mac® systems will have an OS X Recovery mode built-in allowing you to reinstall a fresh version of OS X that is currently installed on your system. Once launched, type or paste in the following command. 14Gb PCI Internal Volune Mac OS Extended). Open Disk Utility. If the external hard drive connected to your Mac is still not showing up in Finder but visible in Disk Utility, it might not be necessarily mounted. Beyond this graphical front-end are some powerful command-line tools that we can use directly. The steps are as follows:. From there I was able to erase the mac's hard drive with JOURNALED selected. Disk Utility will notify you when the process is finished. Guide: How to create Shardana Antivirus Rescue Disk CD. data Add a feature. Now, since you said that you were able to go into disk utility, you already know how to boot into Recovery Mode. Run DiskWarrior from the Applications folder of the host Mac and rebuild the target Mac’s disk. Third, power cycle your Mac. There are 18 powerful features that are available to you in the comfort of your own home and with a peace of mind that your Mac system is protected. After doing an Internet Recovery and starting up in Mac OSX Utilities, Disk utility does not list the internal hard drive but only the Max os x base system (probably downloaded through recovery). Make sure that the Mac is turned off and then follow these simple steps. Normal Recovery Mode accesses Recovery HD, an emergency cache of essential utilities that is saved to a partition in your Mac's startup drive, meaning that it's kept separate from the rest of your disk space. Reboot your computer and hold ⌘ Command+R during startup. Format Disk after Backup. Restore your Mac from a Time Machine backup. For some reason, my disk was partitioned into two equal partitions, with one being free space. I had a spare Mac on hand so that was much faster and easier than installing macOS onto a USB. A Mac’s Recovery Mode is for more than just reinstalling macOS. Click the Erase button and confirm you want to erase your Mac. This is a convenient way manage and store the data of different types. Select Terminal from Utilities Menu. If you time it right, you will enter the recovery mode. Now choose the disk or the partition named as Macintosh HD by default. Exit the Disk Utility and Recovery mode. I forgot my encrypted disk password on OS X I will now reboot my iMac in Recovery Disk mode. Note: The first method below, is found by me and it may work on any other PC, though it was a Lenovo Z50-70 Laptop, I am somehow sure that it will work for you as well. Then the last option left would be using the Recovery mode to diagnose disk problems. If you experience problems with APFS and High Sierra installs, try internet recovery mode instead, restart and press Option + Command + R; When done, your MacBook restarts to a setup assistant. It comes with a lot of computer features like hard disk partitioning, hard disk defragment, data backup, data shredder, hard disk cloning, password recovery, antivirus scanning, computer boot fixing, restore computer boot program and other advanced utility. The USB stick is probably your installer, which you should be able to boot from by holding alt/option at boot. If your Mac hard disk failed during a session or you cannot boot at all, you are likely headed for 3rd-party software to attempt to perform Mac hard drive recovery. Re-boot from Recovery Mode is the easiest way to erase the data on your Mac OS to Wipe a Mac to factory settings. You may use Disk Utility application to perform hard drive partition-related tasks on Mac Operating System, such as to format, repair, erase or create hard drive partitions and end up with an erased hard drive. Mac Disk Utility consists a First Aid option. Power on your Macbook, Macbook Pro, Mac Mini or other OS X computer. You can do the partitioning of the Mac drive by using the inbuilt utility called disk utility. 7 Lion did away with recovery disks, and these days, Apple provides a built-in recovery system within Yosemite. 8 Mountain Lion, there are few compelling reasons as to why the Recovery Partition should be removed. Please backup before you attempt all these. This is a convenient way manage and store the data of different types. If you'd like to select your startup disk or boot from a portable USB, simply press Option while. Boot your Mac into Recovery Mode by holding Command-R at the boot chimes (hold Option-Command-R to load Internet Recovery, if needed). The problem I'm running into is that I'm not sure how to map the network drive in recovery mode. Repair Mac SSD from. It runs under Single-User Mode so it can be used even when OS X will not boot. Or, you can place it in locations where folders are not accepted. When they do we can usually boot up Disk Recovery mode to try to deal with it. I ended up installing High Serria on a thumb drive, rebooting the mac holding down command, and selected the thumb drive to boot from. There are 18 powerful features that are available to you in the comfort of your own home and with a peace of mind that your Mac system is protected. choose Disk Utility before resorting to more drastic options and check your Mac's drive is shown in the app's left pane. There are existing commands for MacOS X for the works we perform via GUI. Power on or restart your Mac (should work for any Mac OS X system). Disk utility may help you to resolve your data issues for Mac. 7 Lion did away with recovery disks, and these days, Apple provides a built-in recovery system within Yosemite. data Add a feature. Step 1: Boot your Mac into Recovery Mode. Hold down the Option key immediately after turning on or restarting your Mac. When I type diskutil in the terminal, 11 disks are found. CleverFiles Disk Drill works well with Mac OS X 10. How to Make a Mac OS X Recovery Disk By MacLife How To OS X 10. Cost: Free! (donation-ware) Apple Mac Disk Repair – AppleJack. Reset password using Lion Recovery. offline Mac installer to run Disk Utility. Then, it is good to repair disk in Safe mode. Use Disk Utility in Recovery Mode. Steviebeth asked about debugMenu and advancedImage Options. How to Delete and Merge Partitions on Mac Hard Drive. Choose the one meets your need and give it. Download recovery disk assistant for free. Performing the system in recovery mode fixes most of the times. Step 1: Open Disk Utility. How do I create or write to images to disk on Apple Mac OS X (macOS) Unix operating system with dd command? Create new disk images from USB or SD card Write images to disk or USB or SD card You also need to use diskutil command manipulates the structure of local disks including listing and unmouting. Lastly, specify the destination and perform Mac system re-installation. My first move is do a quick fix to the hard disk. Use Recovery Mode to: Scan, verify and repair connected drives with Disk Utility. You can make a bootable USB drive or disk of the recovery drive, but involves a small trip to the Terminal…. Mac's Disk Utility has the ability to make a disk image of a specific folder. 7 Lion Full OS Install - Reinstall/Recovery Upgrade Downgrade/Repair Utility Core 2 Duo Factory Reset Disk Drive Disc CD DVD Restore Tool Disk 4. Once you are ready to create a backup file attempt to access Mac's Recovery Menu: Hold down Command and R keys while pressing power button to turn on your computer, when you see the Apple logo you can release the keys. Plug it into the other Mac via Thunderbolt or Firewire. Recovery Mode will download the macOS installer files from the Internet if you don't have them locally, so they don't take up space on your disk and you'll never have to hunt for an operating system disc. So I had to perform a forced shutdown and then rebooted into the recovery console: started disk utility and attempted to run first aid after mounting the SSD. How to write a USB stick with macOS. Run Disk Utility in Recovery Mode. If your Mac won't boot in Recovery mode, read this: Mac can't access Recovery mode. In order to introduce it, press Command+Space-> type disk utility-> click on enter. CleverFiles Disk Drill works well with Mac OS X 10. Click "Start" to go on. Leave the option for Format as. MacintoshHD is the default disk name in macOS, disk format required is Mac OS Extended. Due to Disk Utility to Repair Mac problem you may not be able to access your hard drive or your mac applications which you have installed on your system. Every Mac ships with Recovery mode, which lives on a separate partition on the startup disk. With its help, you can repair your Mac’s hard drive. 1 hard drive is set as the default, and then restart. Whether you're starting up your Macintosh computer from its internal hard drive, an operating system installation disc or an external drive, it's easy to get. For the majority of Mac users, reinstalling macOS means booting into Recovery Mode: Restart your Mac while holding down the ‘Command+R. The following extra tools are free and packed in Disk Drill right out-of-the-box. Start or restart your Mac and immediately press and hold T on your keyboard. Next: Exit the Disk Utility, and click on Install New macOS. I was trying to repair permissions today on my Mac so I ran the Disk Utility's First Aid on my drive and it said that there was an Invalid Index Key and that my disk was corrupt and I needed to run the first aid in Recovery mode. Accidentally Erased Hard Drive on Mac. The OS X recovery utilities includes access to Disk Utility for managing storage volumes. offline Mac installer to run Disk Utility. Four methods for accessing recovery mode in OS X Accessing Recovery Mode in OS X may be necessary for restoring from a backup, and reinstalling OS X, among other low-level administrative tasks. Start by shutting down the target Mac. 12 Sierra, the Disk Utility debug menu is no longer available. Repair Disk is now possible, click on “Repair Disk” to repair the boot volume.  This functionally puts a password on the logic board preventing the use of any pre-boot keyboard modifier keys. You can have a look at this and learn to restore your Mac OS X El Capitan from Time Machine backup. In the window that appears, you'll see choices for reinstalling OS X, launching Disk Utility and other maintenance choices. In disk utility it is not letting me bring up any kind of menu by click on the drives. Please backup before you attempt all these. I think here is where I made a mistake: I thought maybe the disk somehow became unmounted, so I clicked 'Mount/Unmount. macOS Recovery (often referred to as Mac Recovery Mode) was introduced back in 2010 with OS X 10. The users can also fix and wipe the data on the hard disk, and even re-install MacOS. We'll give you instructions for using Disk Utility's First Aid on a non-startup volume, and then for using First Aid when you need to repair your Mac's startup volume. How to Reinstall Mac OS with Recovery Mode. NOTE: As of macOS 10. Shut down your Mac and turn it on by pressing Command + R simultaneously for booting it into the recovery partition. Exit the Disk Utility and Recovery mode. Now, since you said that you were able to go into disk utility, you already know how to boot into Recovery Mode. When it is done, close the application by clicking Disk Utility and then Quit Disk. Four methods for accessing recovery mode in OS X Accessing Recovery Mode in OS X may be necessary for restoring from a backup, and reinstalling OS X, among other low-level administrative tasks. Click Continue. While it's still possible to create an exact copy (a clone) of any drive connected directly to your Mac, the changes made to Disk Utility means there are extra steps involved if you wish to use Disk Utility's Restore function to clone your startup drive. Restart your iMac or MacBook and hold down Command+R to boot your Mac into recovery mode; Choose Disk Utility and mount the startup disk. So, to reset that partition (and fix that locked issue) click on the hard drive (the line with manufacturer's info), then click the Partition tab. Time Machine is your backup feature for X OS which is built into the system. Be patient because safe mode is slower. If the boot is OK (remember, no safe mode this time, just a normal boot), then shut down, so you Mac is turned off. Now you have two options: Re-open Disk Utility and select the internal drive and format it as "Mac OS Extended". Quit Disk Utility, then Quit the Recovery HD, which should give you the choice to change the Startup Disk. When the process finished the exit code, it means everything goes on well with the Mac. I need the apps/info on it ,and do have a back up or I do not have a disks for Rosetta stone, Office 2013, full adobe which was installed. If you're encountering the same issue as said at the beginning of the article, that your computer gets corrupted, and you have to consider a complete restart in Recovery Mode. Navigating to the respective application folder is another way to launch it. Repair your boot disk in Recovery Mode. BootNext tool - boot any Linux or Windows from Windows 8. Go to the macOS Recovery Mode. Then turn it on while holding down the “T” key. Read up here, you may have a basic knowledge on 3 best data recovery utility for Mac. These Disk Utility to Repair Mac problem can cause mac system to work slow or give some unexpected problems. Recovery mode was OK but couldn't erase the boot volume nor mount it via Disk Utility (I just got "Unable to delete the core storage logical volume"), so reinstalling seemed impossible. Note: The first method below, is found by me and it may work on any other PC, though it was a Lenovo Z50-70 Laptop, I am somehow sure that it will work for you as well. Reboot your Mac and hold down the command and r key down at the same time to enter Recovery Mode. Solution 1: format hard drive under macOS 10. Disk Drill can recover your lost pictures and photos, music, documents, applications, videos and other data.