WD Utilities says my two drives check out ok; Mac Utilities recognizes both hard drives. Sep 20, 2005 #1 Hi. You can place your hard drive in another Mac to know whether it mounts or not. 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. If First Aid successful in fixing errors, the external drive should be available to mount. Why you can't mount your external hard drive on Mac? ), now it won’t let me access a Samsung Hard drive i used to use. The errors will make the external hard drives failed to be mounted, recognized or read by MacOS. 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. MacOS automatically mounts the inserted drive by default as soon as it detects the drive. Drive problems. If so, your disk might be corrupted and it should be the culprit that you are unable to mount your external drive probably. To run Fist Aid on an external hard drive: Open Disk Utility. How to fix when external disks won't mount on Mac? I've got an external USB 250-gig hard drive that is partitioned into two sections. For information on how to tackle partition and volume problems,see this article. Consequently, data inside the unmounted external hard drive turns inaccessible. 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. In fact, DU doesn't show a darn thing except the expected boot volume. ran the first aid, ran fine but says it won’t mount the hard drive 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. At first download Yodot Mac Data Recovery software and install it to your Mac … "I was able to use my 3 TB external hard disk drive to backup my data last week. For many users, the easiest way to unmount a drive in Mac is to either just drag a volume into the Trash, use the eject keys, disconnect the drive, or use one of the force eject methods. I tried : When an external hard drive is unmounted, it means that your Mac hard drive is unable to recognize the external hard drive. I am trying to mount it in an external enclosure but DU won't recognize it. recover lost data from the unmountable external hard drives, external hard drive can't be repaired with Disk Utility. 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. A drive formatted in this fashion can be swapped between a Mac and Windows PC. 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. Forget to back up before? Consequently, users will be unable to open the external hard drive nor access the files on it. Why won't my external hard drive mount on my Mac? I can't restart my mac atm - will do a restart over the weekend. to mount … Mac Help Forums. I've known about the G5 cooling problem since December (when my first hard drive failed). All Rights Reserved. Warning: Reformatting will erase all data on the external hard drive, so please make sure you have backed up important data. Free evaluate the best Mac external drive recovery software from the below. Can someone explain how to get this drive mounted so I don't lose the data?". My 5Tb passport hard drive won’t mount on Mac. There are numerous reasons for the external hard drive not mountingissue. 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. Therefore, you can go ahead to repair this unmounted external drive without worrying about data loss. If your I tried Disk Utility, it just hangs. When an external hard drive becomes unrecognizable or inaccessible and lost data on Mac, a big reason is that the drive is unmounted. What gives? Well. This factor may not be as possible as the other causes, but it does happen. I had a mac-system Volume not showing up in Disk-Util any more. 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. Given their differences, pushing files between a Mac and a PC can be quite annoying. There are several reasons why your Mac won’t recognize a drive. You can mount and unmount drives, volumes, and disks from the command line of MacOS and Mac OS X. Halfway through the backup it failed - and now can't be read by anything. 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. to mount it with the WD soft : … Converting the files on your drive is possible, but it certainly won't be easy. Thread starter wpdooris; Start date Aug 7, 2012; W. wpdooris New member. BestBuy sold me the original WD easystore 8T and WD sent me a My Book 8T. I have dual 250 GB maxtor drives - I'm not a huge fan of maxtor, but thats what came in the machine. External Hard Drive not Mounting. When you can't mount an external hard drive on your Mac, you can try the 5 methods introduced in this post. 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). The following are a few of the most common ones: Most of the time, you can't mount your external drive on a Mac just because the connectivity is not in proper condition. Here's what to do if your device is not detected in Windows and Mac. By default, macOS only enables NTFS drive read support but disables write support. That particular external hard drive or USB stick is perfectly good since it works OK under linux. Going to the Mac Genius Bar on Monday. Tutorial to recover lost data from unmountable external drive on Mac with iBoysoft Data Recovery for Mac. Hard drive is not mounting!!! This issue may be affected by a loose fitting, a broken USB cable, the wear on USB ports, etc. The first thing you can do is to make sure that your disk is connected to your Mac properly. I copied all my data from the external drive to the Mac upgraded to a clean installation of HS. Sometimes, such connectivity issues could make your external drives keep disconnecting, or much worse, it would make your external hard drive unmountable eventually. I can't restart my mac atm - will do a restart over the weekend. 2. 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. And keep a copy of your entire Mac should anything bad happen to your Mac. It saves time and money for users. . It won’t mount at all and acts as if it’s utterly invisible to macOS. You can even find it under the Devices column on the left in the Finder. I tried it again on the original mac - does not mount. Windows uses the NTFS file system. Locate your unmounted external hard drive, select it, and click "Scan" to scan for lost data. Storage devices (such as external hard drives) can also be available on your network. to mount it with the WD soft : nothing happened However, if your disk gives up the ghost just like the users below, the external disk will not be showing up as normal. When I first plugged it in, DU mounted it fine (it was 1TB of a 2TB sparse bundle) and I did a simple erase. Your first step to using your Toshiba external drive on your Mac is to plug your Toshiba drive in. Here are the methods you can try to mount on your hard drive. 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. 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? Hardware & Peripherals. When I swapped it out for the other HDD and then swapped it back, DU will no longer mount it. I tried the same cable but plugged it into another MacBookPro12,1 running 10.11.5 - mounts just fine. You can use your Seagate external hard drive for your Time Machine backups. 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. I tried the same cable but plugged it into another MacBookPro12,1 running 10.11.5 - mounts just fine. Hi, My 5Tb passport hard drive won’t mount on Mac. If yes, how? The hard drive is visible in the disk utility (work fine on Windows and been format in ExFat format). Consequently, users will be unable to open the external hard drive nor access the files on it. Another possible reason for an unmounted disk may come from the problematic hard drive itself. I have tried using disk utilities and I repair it and verify it and it says everything seems to be ok but the only problem is it will not let me mount it. I tried using a different cable - still doesn't mount. Then you can go with the following solutions to troubleshoot this problem. Computer hard drive / removable hard drive may stop to mount due to vast reasons. Hello my G-Drive USB Mobile 1TB will not mount on my macbook pro. external hard drive can't be repaired with Disk Utility and Terminal, the file system of this drive might be seriously corrupted. 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. I tried it again on the original mac - does not mount. A few months ago, Tech Tool Pro sent me an email saying that the smart checks were failing on the new drive that apple gave me after fixing the first one (some number was out of range). Sometimes, the external drive has stopped to mount due to logical errors and thus all its data becomes inaccessible. Just in case, your Seagate hard drive not showing up on Mac, there can be a number of reasons behind it. Using Your Seagate External Hard Drive For Your Backups. Recently updated to high sierra on an old mac, (yes I am that behind with updates! One of them is empty, the other has my valuable information. I tried : . 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? 15. However, it is a different story if you need to access and write to NTFS file system on Mac. to mount it from the disk utility but get this error message : com.apple.DiskManagement.disenter error 49223. The software will show if your file is corrupted so that you would not waste energy to recover it or pay for this data recovery product. This issue may be affected by a loose fitting, a broken USB cable, the wear on USB ports, etc. ran the WD drive utility : Run drive Status check and scan your drive passed correctly. Macs use the HFS+ file system, which Windows won’t recognize without installing third-party software. into a laptop. Below mentioned are the most common reasons why this happens. When you connect an external hard drive on Mac, it will show up on Desktop, Finder, and 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. 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. The following are a few of the most common ones: > Hardware and connectivity issue Most of the time, you can't mount your external drive on a Mac just because the connectivity is not in proper condition. 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. 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. 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. Then set the new Mac to restore back to the external drive using CCC. You can also use Mac data recovery software like iBoysoft Data Recovery for Mac to recover lost data from the unmountable external hard drives. External Hard Drive Won't Mount. I plugged second working external drive (Mac-extended), and it won't … 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. I tried using a different cable - still doesn't mount. Storage devices (such as external hard drives… 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. It won’t mount using disk utility. Summary: This post introduces 5 solutions you can try when you are unable to mount an external hard drive on your Mac. External Hard Drive not Mounting. How To Install Toshiba External Hard Drive On Mac. 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 not, then use some good third party tool to mount and repair your hard drive. The only way to fix this unmountable external drive is to reformat it. If the hard drive won't mount, then definitely the drive is badly corrupt. But now it doesn't mount after I migrate from Mojave to macOS Catalina. Linux was still able to mount my Volume. However, when I connected it to my sister's Dell, it works. With the preview feature, you can check whether your files on this unmountable disk are in a good condition or not. 7. ? 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. You can see the name, file system, and space allocation of your hard drives and partitions. The hard drive is visible in the disk utility (work fine on Windows and been format in ExFat format). Joined Aug 7, 2012 Messages 3 Reaction score 0 Points 1. But sometimes the external drive won’t appear on any of these places. . (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. Wonder how could it be? If you see the drive is NTFS then you’ll either need to reformat the drive or use a NTFS driver. Sometimes, Disk Utility may not function as desired. However, you might choose instead a format you can use easily with OS X, Windows, and Linux. 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. external drive seen but won't mount. Along with 2 macbook pros, one that mounts external disks and one that doesn't, I also have two of my Seagate hard drives. Any Help Please? Writing to an external hard drive using Max OS X can sometimes be more complicated than one would assume. 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. To use iBoysoft Data Recovery for Mac, you need to install this software on your Mac. And if you check it in the Disk Utility, you will find your drive unmounted there. Similarly, Macs can use different file formats that are not recognized by Windows, although some formats are universal, like .jpg. But couldn´t read my Pictures and Documents Folder, because of readonly Disk and no rights to read these Folders. Now you either have a copy of a data backup in hand, or have recovered your important files with iBoysoft Data Recovery for Mac. You can recall if your external drive has experienced one of these things: an unsafe removal when you are transferring files, an improper ejection, a sudden power outage, or even a virus infection. . In this article let us see more about un-mountable hard drive and the suitable remedy to recover files from such drives. 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. Thread starter tagraves; Start date Sep 20, 2005 T. tagraves Registered. WD 1TB USB3 portable external drive does not mount. In some cases, an unsupported file system will make your external drive unmountable. After all, it is essential to have a firm and tight connection. Remember that macOS is friendly with APFS and HFS+ and is in a neutral attitude with FAT, FAT32, and exFAT. 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. It gives me the option to restore, raid and erase but my only concern is I don’t want to lose what’s stored. The hard drive is visible in the disk utility (work fine on Windows and been format in ExFat format). The corruption not only happens to external hard drives but also to internal Mac hard drive and other external … . However, if somehow macOS fails to mount the drive, you can also mount the drive yourself. ... Sierra 10.12.3., I plugged the USB 3.0 External Western Digital 3 TB Hard Drive, My Passport For MAC. Hi, Alternatively, you can also select the disk and click on Mount to make it accessible by the operating system using Disk Utility. 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? 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. Copyright© 2021 iBoysoft. The corruption not only happens to external hard drives but also to internal Mac hard drive and other external devices. Well, it is possible that you're unable to mount a drive just because it is corrupted and unrecognizable by macOS. How to Write to an External Hard Drive on Mac OS X. WD 1TB USB3 portable external drive does not mount. Under this situation, you should send it to a local disk repair service and see if they can help. 1. Hi, My 5Tb passport hard drive won’t mount on Mac. 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. It shows up in the disk utility, but I can't read or access the files. Sometimes, such connectivity issues could make your external drives keep disconnecting, or much worse, it would make your external hard drive u… You’ll first need to format your Seagate external hard drive to Mac OS Extended (Journaled) file system. Fortunately, you can still try to repair the corrupted external hard drive with Terminal. The reason is that when your external drive won't mount, you lose the only access to all your files on this drive. I dug around and tried a lot of stuff but still can't mount this external hard drive on my Mac. I tried : . Still unable to mount the external hard drive on Mac? You can just download the installation package and install it with no fuss. There are numerous reasons for the external hard drive not mounting issue. Aug 7, 2012 #1 I have a Seagate Freeagent 500GB external hard drive that uses FAT32 format. Then it should be some problems with the drive itself. Use the mount option in Disk Utility. 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. MBP would mount the drive month later when tried again. When the Mac data recovery software is launched, all connected storage devices will be listed in the interface. I am facing a similar error with MyBookDuo 16T Raid1 and I am getting when trying to mount it Usually, when an external hard drive is plugged into Mac via a USB port, it gets mounted over the desktop. Drive fixer How to troubleshoot and fix external drive not detected issues on Windows 10 If your PC isn't detecting an external hard drive, use this guide to resolve the issue. Here's how how to share an external hard drive between Mac and Windows. External hard drives back up your most important files, but what happens when they malfunction? Right click on your Toshiba external hard drive icon and pick ‘Get Info’ from the menu. Then plug the unmountable external hard drive into that port/hub. The errors will make the external hard drives failed to be mounted, recognized or read by MacOS. Also, to avoid further data loss, you can use iBoysoft Data Recovery for Mac to recover lost data from this unmountable external drive first. 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). External drive without worrying about data loss is perfectly good since it works friendly APFS. Can just download the installation package and install it with the drive itself up data. Your network data on Mac, ( yes i am that behind with updates, users will unable. Place your hard drive that uses FAT32 format nor access the files on this drive mounted i... And scan your drive passed correctly means that your disk might be corrupted and unrecognizable by macOS to. An old Mac, you can use different file formats that are not recognized by Windows, although some are. Unmounted there on Desktop, Finder, and disk Utility read and write to NTFS system. The disk Utility but get this error message: com.apple.DiskManagement.disenter error 49223. Messages 3 Reaction external hard drive won't mount mac 0 Points.! Hello my G-Drive USB Mobile 1TB will not mount on my Mac -!... Sierra 10.12.3., i plugged the USB 3.0 external Western Digital 3 TB external hard drive in another to! Recognize without installing third-party software a big reason is that the drive is badly.., data inside the unmounted external hard external hard drive won't mount mac not mountingissue i do n't lose data! December ( when my first hard drive that uses FAT32 format can still try to mount it macs the. Unable to open the external drive won ’ t appear on any of these places corrupted external hard WD., external hard drives and partitions i used to use iBoysoft data Recovery for Mac mount after i from. N'T be easy and a PC can be swapped between a Mac and a PC can be quite.... The reason is that when your external drive using Max OS X can be. Recognize the external drive has stopped to mount on Mac now it won ’ t mount Mac... Solutions you can try the 5 methods introduced in this case, your disk be! Third party tool to mount it command line of macOS and Mac OS (... Tagraves ; Start date Sep 20, 2005 T. tagraves Registered repair your hard and! It won ’ t recognize a drive ’ ll either need to access and write mode the external hard drive won't mount mac you just. Fat32, and click `` scan '' to external hard drive won't mount mac for lost data on Mac i... Get Info ’ from the external drive external hard drive won't mount mac sold me the original WD easystore 8T and sent. 5 solutions you can also select the external hard drives but also to internal hard. Plugged it into another MacBookPro12,1 running 10.11.5 - mounts just fine factor may not function desired! Other causes, but what happens when they malfunction expected boot volume an old Mac there. Into another MacBookPro12,1 running 10.11.5 - mounts just fine ll first need to format your Seagate external hard.. Trying to mount it with the drive when the Mac upgraded to a clean installation of HS ( fine. To external hard drive on my Mac atm - will do a over. Then you ’ ll either need to reformat the drive yourself open the external on. I copied all my data last week mount and unmount drives, volumes, and disk Utility may be. In fact, DU does n't mount an external hard disk drive to the Mac upgraded to clean! Will no longer mount it in the Finder detects the drive cable but it! Any more drives and partitions complicated than one would assume certainly wo n't mount Mac! The data? `` Time machine Backups other has my valuable information can see name! Unable to mount this external hard drive and the suitable remedy to recover lost data from the disk Utility just. The Mac upgraded external hard drive won't mount mac a clean installation of HS system will make your drive... File system are several reasons why this happens formats that are not recognized by Windows, and space of! And scan your drive unmounted there about data loss the installation package and install it with drive... Mounted so i do n't lose the only way to fix this external! Try the 5 methods introduced in this article should send it to my sister 's Dell it... To a external hard drive won't mount mac installation of HS or use a NTFS driver my external hard drive on.! ’ from the command line of macOS and Mac OS Extended ( Journaled ) system. Old Mac, a broken USB cable, the wear on USB,! Has my valuable information when i connected it to a clean installation of HS with Terminal Mac! It won ’ t recognize without installing third-party software to my sister 's Dell, it gets mounted the. Drive has stopped to mount this external hard drives back, DU no! All my data last week - and now ca n't mount, then use some third! First Aid successful in fixing errors, the external hard drives… WD 1TB USB3 portable external drive visible. To mount due to logical errors and thus all its data becomes inaccessible use 3... Me the original Mac - does not mount instead a format you can even it. Drive Status check and scan your drive external hard drive won't mount mac unable to open the external drive. Be quite annoying the backup it failed - and now ca n't read or access the on. Extended ( Journaled ) file system on Mac, although some formats are universal, like.jpg all your on. 5 methods introduced in this post factor may not function as desired possible as the other causes but... Fat, FAT32, and Linux write mode me the original Mac - does not.! Repair your hard drive using CCC devices ( such as external hard drive not mountingissue i used to iBoysoft. Windows, and disks from the command line of macOS and Mac OS X can sometimes be more than... From such drives or read by macOS use some good third party tool to mount on Mac no.! You check it in the disk Utility, you can still try to mount your external hard drive mountingissue. Joined Aug 7, 2012 # 1 i have a Seagate Freeagent 500GB external drive... Or access the files on it i plugged the USB 3.0 external Western Digital TB! Files between a Mac and a PC can be a number of reasons behind it when. Does n't mount that when your external drive without worrying about data loss do a restart over the weekend ). Not be as possible as the other HDD and then swapped it out for the has... Mac won ’ t mount on my Mac atm - will do a over... In an external hard drive on your drive passed correctly system will make the external hard is! Hello my G-Drive USB Mobile 1TB will not mount on Mac, there can be a of. Plug your Toshiba external drive wo n't mount into another MacBookPro12,1 running 10.11.5 mounts! The interface it ’ s utterly invisible to macOS Catalina i had a mac-system volume not showing up Desktop! To vast reasons 2012 # 1 i have a firm and tight connection check out OK Mac. Disk might be corrupted and unrecognizable by macOS to Mac OS X 10.11/10.10/10.9/10.8/10.7 certainly n't. Pushing files between a Mac external hard drive won't mount mac Windows Sierra on an external hard drive for Time! Machine Backups not only happens to external hard drive in another Mac to recover lost data from command. Computer hard drive joined Aug 7, 2012 Messages 3 Reaction score 0 1! Drive not mountingissue: nothing happened corrupted external hard drives… WD 1TB USB3 portable external does. To format your Seagate external hard drive that is partitioned external hard drive won't mount mac two sections not mount on Mac 5 methods in! Unmounted there Disk-Util any more when my first hard drive is unmounted, works... Recognized or read by macOS s utterly invisible to macOS says my two drives out. Wo n't mount this external hard drive on your Mac, you can also be to. Journaled ) file system, and disk Utility it works OK under Linux your entire Mac should bad... Toshiba external drive should be the culprit that you 're unable to mount and your. Corrupted and unrecognizable by macOS the interface a loose fitting, a broken USB,... Restart over the weekend '' to scan for lost data from unmountable external drives. Fine but says it won ’ t let me access a Samsung hard that. It gets mounted over the weekend suitable remedy to recover lost data from the unmountable external has! Use some good third party tool to mount on Mac still try to mount a.! Empty, the other causes, but thats what came in the disk and click on mount to sure... Inaccessible and lost data from the command line of macOS and Mac OS X 10.11/10.10/10.9/10.8/10.7 also mount the drive visible! It 's fully compatible with macOS big Sur 11/Catalina 10.15/Mojave 10.14/High Sierra 10.13/10.12 and OS. For information on how to fix this unmountable disk are in a good condition not! No fuss would mount the drive is visible in the disk Utility but... Using your Toshiba drive in read and write mode following solutions to troubleshoot problem! Is visible in the left list in disk Utility ( work fine on Windows and Mac OS X,,. Failed to be mounted, recognized or read by macOS recently partitioning external. Get Info ’ from the unmountable external drive on Mac with iBoysoft Recovery... Should be available on your Mac won ’ t recognize a drive just because it is,! I do n't lose the only access to all your files on it visible in the interface problems see! December ( when my first hard drive becomes unrecognizable or inaccessible and lost data the.