The recent Western Digital "easy store" and "My Book" hard drives have a Mac Sierra 10.12.6 issue: They are invisible to the Desktop. However, when I connected it to my sister's Dell, it works. If you are not sure if there is a problem with the USB port/hub, you can plug a working external drive in to a port/on a hub, unmount and eject it. Windows uses the NTFS file system. Why you can't mount your external hard drive on Mac? I've known about the G5 cooling problem since December (when my first hard drive failed). "I was able to use my 3 TB external hard disk drive to backup my data last week. This issue may be affected by a loose fitting, a broken USB cable, the wear on USB ports, etc. It gives me the option to restore, raid and erase but my only concern is I don’t want to lose what’s stored. 2. I had a mac-system Volume not showing up in Disk-Util any more. Here's what to do if your device is not detected in Windows and Mac. Then it should be some problems with the drive itself. There are numerous reasons for the external hard drive not mountingissue. I tried it on 2 macs (one new version with just the USB C connector and an older one with the basic USB and both same thing), You could refer to the following link: https://support-en.wd.com/app/answers/detail/a_id/12455, Have you saved this problem? Just in case, your Seagate hard drive not showing up on Mac, there can be a number of reasons behind it. A drive formatted in this fashion can be swapped between a Mac and Windows PC. I can't restart my mac atm - will do a restart over the weekend. to mount it from the disk utility but get this error message : com.apple.DiskManagement.disenter error 49223. Macbook Pro refuses to mount an specific external hard drive or USB stick, after being able to do so with no problem before, and usually after the operating system disconnects it suddenly. However, if your disk gives up the ghost just like the users below, the external disk will not be showing up as normal. The corruption not only happens to external hard drives but also to internal Mac hard drive and other external … To use iBoysoft Data Recovery for Mac, you need to install this software on your Mac. Well. After all, it is essential to have a firm and tight connection. The reason is that when your external drive won't mount, you lose the only access to all your files on this drive. into a laptop. Hardware & Peripherals. Consequently, users will be unable to open the external hard drive nor access the files on it. When an external hard drive is unmounted, it means that your Mac hard drive is unable to recognize the external hard drive. External Hard Drive not Mounting. It's fully compatible with macOS Big Sur 11/Catalina 10.15/Mojave 10.14/High Sierra 10.13/10.12 and Mac OS X 10.11/10.10/10.9/10.8/10.7. Storage devices (such as external hard drives) can also be available on your network. If First Aid successful in fixing errors, the external drive should be available to mount. Your first step to using your Toshiba external drive on your Mac is to plug your Toshiba drive in. But sometimes the external drive won’t appear on any of these places. Hi, My 5Tb passport hard drive won’t mount on Mac. How to fix when external disks won't mount on Mac? WD 1TB USB3 portable external drive does not mount. I am facing a similar error with MyBookDuo 16T Raid1 and I am getting when trying to mount it I tried using a different cable - still doesn't mount. Below mentioned are the most common reasons why this happens. Also, to avoid further data loss, you can use iBoysoft Data Recovery for Mac to recover lost data from this unmountable external drive first. How to Write to an External Hard Drive on Mac OS X. Remember that macOS is friendly with APFS and HFS+ and is in a neutral attitude with FAT, FAT32, and exFAT. Would it be possible/worth a shot to format my empty drive to APFS, transfer the data from the other drive onto it, and then see if my computer can then mount it? If you use external USB or FireWire hard drives on your Mac, one problem you may encounter is where the drive will not mount in OS X when attached to your computer. Use the mount option in Disk Utility. Storage devices (such as external hard drives… Similarly, Macs can use different file formats that are not recognized by Windows, although some formats are universal, like .jpg. You can mount and unmount drives, volumes, and disks from the command line of MacOS and Mac OS X. You’ll first need to format your Seagate external hard drive to Mac OS Extended (Journaled) file system. Any Help Please? Locate your unmounted external hard drive, select it, and click "Scan" to scan for lost data. I tried it again on the original mac - does not mount. In this situation, if you have important files on the external hard drive, any operations on the drive could overwrite the original data and cause irreparable data loss. After you connect an external hard drive to your Mac, if everything is working fine, the operating system will automatically recognize, read, and mount your external drive, as well as show it in the Finder and on the desktop. Even though the reasons for a not mounting disk are different from case to case, certainly there are some things you can do to fix this issue. If so, your disk might be corrupted and it should be the culprit that you are unable to mount your external drive probably. You can see the name, file system, and space allocation of your hard drives and partitions. To run Fist Aid on an external hard drive: Open Disk Utility. iBoysoft Data Recovery for Mac is a free external hard drive data recovery tool that enables you to recover lost data from external drives, especially when a hard drive is unmounted, formatted, inaccessible, unreadable, or corrupted. Another possible reason for an unmounted disk may come from the problematic hard drive itself. However, hard drive problems may happen that your WD external hard drive won't mount on Mac, usually when you desperately need to access some data stored on it. to mount it with the WD soft : … Before you go any further to fix this unmountable hard drive, you'd better make sure you have backed up your data on this drive to avoid data loss. I am trying to mount it in an external enclosure but DU won't recognize it. BestBuy sold me the original WD easystore 8T and WD sent me a My Book 8T. How To Install Toshiba External Hard Drive On Mac. Tutorial to recover lost data from unmountable external drive on Mac with iBoysoft Data Recovery for Mac. ? Select the external hard drive in the left list in Disk Utility. com.apple.DiskManagement.disenter errore -119930868, Powered by Discourse, best viewed with JavaScript enabled, My 5Tb passport hard drive won't mount on Mac, https://support-en.wd.com/app/answers/detail/a_id/12455. Warning: Reformatting will erase all data on the external hard drive, so please make sure you have backed up important data. I tried it again on the original mac - does not mount. If not, then use some good third party tool to mount and repair your hard drive. Finally, if your drive is online and formatted, but doesn't show a drive letter next to its name, right-click the volume and choose Change Drive Letter and Paths to add a drive letter. Consequently, data inside the unmounted external hard drive turns inaccessible. When an external hard drive is not working properly, you can use the built-in disk repair tool - First Aid to check and repair disk errors. The best solution is to mount the external hard drive again using Disk Utility, then scan and restore all data from the external hard drive by using professional Mac hard drive recovery software. The hard drive is visible in the disk utility (work fine on Windows and been format in ExFat format). In many cases, the only way to solve this problem is to completely remove the external drives and then restart your MacBook or Mac several times until the drives finally show up again. . Copyright© 2021 iBoysoft. Here are the methods you can try to mount on your hard drive. When you connect an external hard drive on Mac, it will show up on Desktop, Finder, and Disk Utility. Recently updated to high sierra on an old mac, (yes I am that behind with updates! After recently partitioning my external hard drive with iPartition, it seems as if my MacBook won't mount the drive. In this case, you can download a free NTFS driver for macOS to mount this external hard drive in read and write mode. If the hard drive won't mount, then definitely the drive is badly corrupt. I copied all my data from the external drive to the Mac upgraded to a clean installation of HS. Drive problems. You can use your Seagate external hard drive for your Time Machine backups. Sometimes, Disk Utility may not function as desired. However, it is a different story if you need to access and write to NTFS file system on Mac. . Alternatively, you can also select the disk and click on Mount to make it accessible by the operating system using Disk Utility. In addition to external hard drive data recovery, it also can recover lost data from internal Mac hard drives, USB flash drives, SD cards, memory cards, pen drives, etc. Aug 7, 2012 #1 I have a Seagate Freeagent 500GB external hard drive that uses FAT32 format. . That particular external hard drive or USB stick is perfectly good since it works OK under linux. External Hard Drive Won't Mount. After successfully downloading this program on your Mac, you can drag it to your Applications folder to install it, or you can double-click its icon to launch it. Well, if you don't know exactly what file system your disk is formatted with while your external hard drive can't be mounted now, you can go to Disk Utility to have a check if it is formatted with an unsupported file system. Sometimes, the external drive has stopped to mount due to logical errors and thus all its data becomes inaccessible. The only way to fix this unmountable external drive is to reformat it. Right click on your Toshiba external hard drive icon and pick ‘Get Info’ from the menu. Wonder how could it be? Can someone explain how to get this drive mounted so I don't lose the data?". In some cases, an unsupported file system will make your external drive unmountable. When you can't mount an external hard drive on your Mac, you can try the 5 methods introduced in this post. External hard drives, thumb drives, USB drives, Flash memory cards, and devices like iPod are examples of storage devices that you can connect to your Mac using Thunderbolt, USB, or FireWire cables, or connect wirelessly using Bluetooth. Normally when you plug in an external hard drive to your Mac's USB port you will see it appear on the desktop (aka mount on the desktop). But if unfortunately, none of these solutions can make your hard drive work again, or your disk is not even detected or showing up in Disk Utility, then this drive might be physically damaged. The following are five effective solutions to the 'external hard drives won't mount on Mac' issue, and some of them are just basic checks. Thread starter wpdooris; Start date Aug 7, 2012; W. wpdooris New member. Since updating to macOS Sierra, my Seagate 1TB Harddrive isn't being read or mounted by my Retina MacBook Pro (2014) ... Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. Now you either have a copy of a data backup in hand, or have recovered your important files with iBoysoft Data Recovery for Mac. But no matter which solution you are going to try, to avoid data loss, you are always advised to back up your files or recover your data from this unmountable drive first with iBoysoft Data Recovery for Mac. For information on how to tackle partition and volume problems,see this article. My 5Tb passport hard drive won’t mount on Mac. It is reasonable because if your Mac can't even read your disk's file system, how can you mount and access this hard drive on your Mac? I tried : . I tried Disk Utility, it just hangs. In this article let us see more about un-mountable hard drive and the suitable remedy to recover files from such drives. I've got an external USB 250-gig hard drive that is partitioned into two sections. Computer hard drive / removable hard drive may stop to mount due to vast reasons. 15. In fact, DU doesn't show a darn thing except the expected boot volume. Then set the new Mac to restore back to the external drive using CCC. Going to the Mac Genius Bar on Monday. Therefore, you can go ahead to repair this unmounted external drive without worrying about data loss. Converting the files on your drive is possible, but it certainly won't be easy. I tried using a different cable - still doesn't mount. You can searching for it using Spotlight Search or via Finder > Application > Utility; Check on your external hard drive, click the First Aid tab and select Run to start running diagnostics. Procedure to get back files from hard drive which does not mount on Mac: Note: Safely remove and connect Mac hard drive that is not mounting to healthy Macintosh computer as external hard drive after installing this tool. Hello my G-Drive USB Mobile 1TB will not mount on my macbook pro. If yes, how? external drive seen but won't mount. Macs use the HFS+ file system, which Windows won’t recognize without installing third-party software. There are several reasons why your Mac won’t recognize a drive. WD 1TB USB3 portable external drive does not mount. Last but not least, there may be problems with the drive itself, which can be caused by a number of issues including power or connection interruptions without properly unmounting the drive (a frequent occurrence for external drives). This factor may not be as possible as the other causes, but it does happen. (so my mac didn´t start any more) Somehow i managed to install OSX on a new Hard-Drive and plugged the old one external. . You can place your hard drive in another Mac to know whether it mounts or not. ran the WD drive utility : Run drive Status check and scan your drive passed correctly. MBP would mount the drive month later when tried again. I tried : Here's how how to share an external hard drive between Mac and Windows. ran the first aid, ran fine but says it won’t mount the hard drive I tried the same cable but plugged it into another MacBookPro12,1 running 10.11.5 - mounts just fine. External hard drives back up your most important files, but what happens when they malfunction? Usually, when an external hard drive is plugged into Mac via a USB port, it gets mounted over the desktop. There are numerous reasons for the external hard drive not mounting issue. 7. When OS X won't let you unmount a flash drive or external hard ... with a Mac mini using flash drives and external hard ... open files related to items on externally mounted drives. I can't restart my mac atm - will do a restart over the weekend. Mac Help Forums. The errors will make the external hard drives failed to be mounted, recognized or read by MacOS. Hard drive is not mounting!!! Well, it is possible that you're unable to mount a drive just because it is corrupted and unrecognizable by macOS. external hard drive can't be repaired with Disk Utility and Terminal, the file system of this drive might be seriously corrupted. Using Your Seagate External Hard Drive For Your Backups. You can even find it under the Devices column on the left in the Finder. It shows up in the disk utility, but I can't read or access the files. When I first plugged it in, DU mounted it fine (it was 1TB of a 2TB sparse bundle) and I did a simple erase. Under this situation, you should send it to a local disk repair service and see if they can help. When the Mac data recovery software is launched, all connected storage devices will be listed in the interface. Hi, Halfway through the backup it failed - and now can't be read by anything. But couldn´t read my Pictures and Documents Folder, because of readonly Disk and no rights to read these Folders. External Hard Drive not Mounting. 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