In that case, follow these steps: Copyright 2023 Apple Inc. All rights reserved. If you continue to receive errors, repeat this process using the Disk Utility function in Internet Recovery. I noticed that First Aid runs fsck but with different options than what was running automatically. No. Extended: Disk Formatted and Lost All Files? First Aid in Apple'sDisk Utilityis a small utility designed to verify and fix minor problems of a drive, such as repairing the drive's data structures, fixingexternal hard drives not mountingon Mac, and external hard drives not readable on Mac and so on. Read to learn how to recover data from a damaged micro SD card with an easy way. Choose a size and copy the code below to embed this guide as a small widget on your site / forum. rev2023.3.1.43269. I cannot find the time machine on my macpro when in disc utility mode. In the sidebar, select a volume, then click the First Aid button . Story Identification: Nanomachines Building Cities. Step 3: Select Time Machine drive at drive level on the left panel of Disk Utility and run First Aid. Thanks for the post in Apple Support Communities. Yes, the error is fixable in most cases. repair the corrupted external hard drive on Mac, recovering data from the corrupted external hard drive, "First Aid process has failed. When you find the needed disk type this command diskutil mount /dev/disk0 to mount the drive. You can also use Terminal to mount the hard drive via commands. Get the Files Back! Using diskutil in the Terminal, I get this information: Step 4 Or if Disk Utility reports errors, replace, delete, or recreate the troublesome files. : (-69673)". However, if you force quit First Aid when it is running, data loss may happen. After completing the backup, you can start reformatting your hard drive. one example to move away from pure opinion. If you havent used Time Machine before, before backing up, you need to set it up first. To check and repair a disk, you need to run First Aid on each volume and container on the storage device in turn, then run it on the storage device itself. Then turn the drive off and back on. Ruslana is a tech content writer whose true passion is finding out about everything Mac-related. Repair Time Machine Backup: Failed, Corrupted, Missing, Problem #3. Additionally, I always run First Aid also on the Physical Disk; this appears to perform other verification functions. Click on Erase button. ask a new question. Unable to mount volume for repair. Download and install Techtool Pro 12 on your mac. Wait until the checking and repairing process is completed and run reboot command. Then, find the identifier of the needed drive. Repeat steps 6 to 8 for each container on the storage device. Truce of the burning tree -- how realistic? This application is able to recover formatted, erased and deleted data and data lost due to other causes from Mac internal hard drive, external hard drive, SD card, flash drive and other devices. First Aid will try to verify and fix the content on the selected volume every time. Then click Replace to get a repaired disk. Can the Spiritual Weapon spell be used as cover? To do that: 1. Provide the required details including a name, a format, and a scheme. Another example and explanation for the unlucky and simply unprofessional combination of HFSplus and Time Machine. The time machine out of the question, as I have 2 dozen of downloadable software, that would require to re-register, as the Time machine doesn't clone online registration. ask a new question. This site is not affiliated with or endorsed by Apple Inc. in any way. Wait until you see root#appears at the bottom of the text. Apart from those systematic reasons there is of course the most simple possibility: unfortunate things do happen. Choose Disk Utility and run First Aid to fix your disk under the recovery mode. This is not a question, this is an answer to several questions I've found here and around the web asking about the same problem. It has failed so often for so many people. Can the Spiritual Weapon spell be used as cover? Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? OK, without further ado, let's get started! Hopefully, the command has helped you fix file system errors on your external hard drive. Launch Disk Utility by pressing CMD + Space key and typing Disk utility. Time Machine requires that an external drive be formatted like a Mac startup disk: Mac OS Extended (Journaled) with a GUID Partition Table (GPT). Select the external hard drive and click Erase on the top toolbar. What's more, if you lost files on Mac or external storage devices, you can also apply EaseUS Mac data recovery software to easily recover files on Mac without Time Machine backup. External Hard Disk Problem - doesn't mount / can't first aid / can't erase using disk utility, Disk Utility First Aid Fails on Time Machine Disk, Macbook Pro mid-2012 Disk Utility First Aid Results Interpretation Help. Launch Disk Utility, check external hard drive at the left panel. Repeat this on all items in the Disk Utility list for your internal drive. If unfortunately, you have lost some or all of your files, you can restore them from backup. But before that, you'd better back up as many files as possible to another drive, just as Disk Utility suggested. Disk Utility examines the disk image andif it finds any errors it can repairfixes them. Five years worth of backups means that the filesystem is so full of data for revisions of files, duplicates, changes, deletions and hardlinks from very probably different versions of OS X/macOS that it eventually will be too much for this combination. Restart your computer and hold down Command + S keys to boot into Single User Mode. You can click Show Details to see more information about the repairs. > Step 1: Connect the Time Machine backup external hard drive to Mac. macOS Disk Utility is a versatile utility to perform disk-related tasks on Mac. This site contains user submitted content, comments and opinions and is for informational purposes After First Aid completed, about 2 hours later I was able to Mount the disk through Disk Utility. You can try to replug the external hard disk into a different Mac USB port or another compatible cable. 2. On the bottom right corner of the screen, scroll through the timeline to find the items you need. The instructions tell you to reformat the disk. In her spare time, youll find her doing yoga or discovering local coffee shops in search of the best filter coffee. Its storage size should be bigger than the size of your internal storage. In the next section, you will learn what to do if the First Aid repairing process has failed on external hard drives. Erase that Backup volume? Recover Deleted Time Machine Backup, Problem #1. Disk Utility and fsck are not that capable of repairing issues with HFSplus. 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: Choose View > Show All Devices (if available) from the menu bar or toolbar in Disk Utility. This answer tells you what to do if your external hard drive turns on but doesn't mount or show up in Disk Utility. Click Use Disk. If there is no Run button, click the Repair Disk button instead. You can use the First Aid function when you have a complicated disk problem. Step 2. https://support.apple.com/guide/disk-utility/repair-a-storage-device-dskutl1040/mac. But this tool is actually pretty simple to use. Looks like no ones replied in a while. Can you provide a little more detail about what's been happening? If you have encountered the First Aid operation failure when trying to fix external hard drives and neither of the solutions above works, the disk is probably severely corrupted. But you can exclude folders or item from backup in Options. Only that's not what I have found. The sidebar in Disk Utility should now show each available disk or other storage device, beginning with your startup disk. Provide the required details including a name, a format, and a scheme. Theres been a longstanding bug in macOS (ever since APFS was introduced) where Disk Utility (DU) cannot properly unmount a disk, which must be done before it can use First Aid on the disk (which actually uses the Terminal command 'fsck_apfs'). Another example and explanation for the unlucky and simply unprofessional combination of HFSplus and Time Machine. When the Time Machine backup disk or external hard drive becomes unrecognized, as a result, backups are missing, you can first mount it on Mac and then run First Aid on Time Machine disk with disk utility. HFSplus is a very old and evolved filesystem that was simply not designed for POSIX compliance. Disk formatting is a common and very useful way to fix disk errors. Download and install Stellar Data Recovery Professional for Mac. Also, it can repair damaged videos in different formats. The rainbow clock and the finder is not reacting. With the First Aid utility, you can run diagnostics on your disks. Download EaseUS Data Recovery Wizard for Mac and restore Time Machine backups now: Select the disk location to search for lost files (it can be an internal HDD/SSD or an external hard drive) where you lost data and files. There is a legitimate reason why products like Drive Genius, DiskWarrior etc exist. It just says the disk cannot be unmounted and fails. When done, quit Disk Utility. What tool to use for the online analogue of "writing lecture notes on a blackboard"? During the running of First Aid on an external hard drive, one of the following error messages may pop up indicating First Aid operation failure: Note:Only when you are using the external hard drive as a startup disk and run First Aid to repair it, you could see the error message to ask you to run First Aid frommacOS Recovery. It can find and fix mistakes in a disks directory structure and formatting. 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