I am facing a similar error with MyBookDuo 16T Raid1 and I am getting when trying to mount it I tried it again on the original mac - does not mount. Writing to an external hard drive using Max OS X can sometimes be more complicated than one would assume. External Hard Drive not Mounting. Halfway through the backup it failed - and now can't be read by anything. Linux was still able to mount my Volume. The hard drive is visible in the disk utility (work fine on Windows and been format in ExFat format). WD 1TB USB3 portable external drive does not mount. One of them is empty, the other has my valuable information. WD 1TB USB3 portable external drive does not mount. However, it is a different story if you need to access and write to NTFS file system on Mac. When I swapped it out for the other HDD and then swapped it back, DU will no longer mount it. Below mentioned are the most common reasons why this happens. external hard drive can't be repaired with Disk Utility and Terminal, the file system of this drive might be seriously corrupted. Thread starter wpdooris; Start date Aug 7, 2012; W. wpdooris New member. ), now it won’t let me access a Samsung Hard drive i used to use. You can mount and unmount drives, volumes, and disks from the command line of MacOS and Mac OS X. 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. 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. 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? Forget to back up before? Using Your Seagate External Hard Drive For Your Backups. By default, macOS only enables NTFS drive read support but disables write support. 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. to mount … External Hard Drive Won't Mount. MBP would mount the drive month later when tried again. I've known about the G5 cooling problem since December (when my first hard drive failed). 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. External Hard Drive not Mounting. It won’t mount at all and acts as if it’s utterly invisible to macOS. I tried : . Why you can't mount your external hard drive on Mac? Consequently, users will be unable to open the external hard drive nor access the files on it. I tried Disk Utility, it just hangs. 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. Going to the Mac Genius Bar on Monday. 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. You can even find it under the Devices column on the left in the Finder. Here's what to do if your device is not detected in Windows and Mac. Storage devices (such as external hard drives) can also be available on your network. I tried the same cable but plugged it into another MacBookPro12,1 running 10.11.5 - mounts just fine. 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. 1. There are numerous reasons for the external hard drive not mountingissue. Here's how how to share an external hard drive between Mac and Windows. Thread starter tagraves; Start date Sep 20, 2005 T. tagraves Registered. 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. At first download Yodot Mac Data Recovery software and install it to your Mac … But sometimes the external drive won’t appear on any of these places. I tried : It saves time and money for users. Macs use the HFS+ file system, which Windows won’t recognize without installing third-party software. to mount it with the WD soft : … Joined Aug 7, 2012 Messages 3 Reaction score 0 Points 1. Converting the files on your drive is possible, but it certainly won't be easy. Hi, ? 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. Sometimes, such connectivity issues could make your external drives keep disconnecting, or much worse, it would make your external hard drive unmountable eventually. ... Sierra 10.12.3., I plugged the USB 3.0 External Western Digital 3 TB Hard Drive, My Passport For MAC. The errors will make the external hard drives failed to be mounted, recognized or read by MacOS. Any Help Please? Consequently, users will be unable to open the external hard drive nor access the files on it. 15. Warning: Reformatting will erase all data on the external hard drive, so please make sure you have backed up important data. Then plug the unmountable external hard drive into that port/hub. 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? 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. The corruption not only happens to external hard drives but also to internal Mac hard drive and other external … I can't restart my mac atm - will do a restart over the weekend. 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. 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. I dug around and tried a lot of stuff but still can't mount this external hard drive on my Mac. Well, it is possible that you're unable to mount a drive just because it is corrupted and unrecognizable by macOS. In some cases, an unsupported file system will make your external drive unmountable. 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. Also, to avoid further data loss, you can use iBoysoft Data Recovery for Mac to recover lost data from this unmountable external drive first. 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. It won’t mount using disk utility. . Locate your unmounted external hard drive, select it, and click "Scan" to scan for lost data. But now it doesn't mount after I migrate from Mojave to macOS Catalina. You can just download the installation package and install it with no fuss. Hello my G-Drive USB Mobile 1TB will not mount on my macbook pro. to mount it from the disk utility but get this error message : com.apple.DiskManagement.disenter error 49223. I tried it again on the original mac - does not mount. The first thing you can do is to make sure that your disk is connected to your Mac properly. Similarly, Macs can use different file formats that are not recognized by Windows, although some formats are universal, like .jpg. Now you either have a copy of a data backup in hand, or have recovered your important files with iBoysoft Data Recovery for Mac. Drive problems. Consequently, data inside the unmounted external hard drive turns inaccessible. 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. There are numerous reasons for the external hard drive not mounting issue. The hard drive is visible in the disk utility (work fine on Windows and been format in ExFat format). However, if somehow macOS fails to mount the drive, you can also mount the drive yourself. (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. 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. 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! Alternatively, you can also select the disk and click on Mount to make it accessible by the operating system using Disk Utility. You can see the name, file system, and space allocation of your hard drives and partitions. Well. I tried using a different cable - still doesn't mount. There are several reasons why your Mac won’t recognize a drive. And if you check it in the Disk Utility, you will find your drive unmounted there. Right click on your Toshiba external hard drive icon and pick ‘Get Info’ from the menu. 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. I plugged second working external drive (Mac-extended), and it won't … . This issue may be affected by a loose fitting, a broken USB cable, the wear on USB ports, etc. The errors will make the external hard drives failed to be mounted, recognized or read by MacOS. My 5Tb passport hard drive won’t mount on Mac. If your ran the first aid, ran fine but says it won’t mount the hard drive Your first step to using your Toshiba external drive on your Mac is to plug your Toshiba drive in. recover lost data from the unmountable external hard drives, external hard drive can't be repaired with Disk Utility. 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. I tried the same cable but plugged it into another MacBookPro12,1 running 10.11.5 - mounts just fine. Select the external hard drive in the left list in Disk Utility. 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. Then set the new Mac to restore back to the external drive using CCC. 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. 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? If yes, how? You can place your hard drive in another Mac to know whether it mounts or not. However, when I connected it to my sister's Dell, it works. When an external hard drive becomes unrecognizable or inaccessible and lost data on Mac, a big reason is that the drive is unmounted. If so, your disk might be corrupted and it should be the culprit that you are unable to mount your external drive probably. 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 copied all my data from the external drive to the Mac upgraded to a clean installation of HS. You can use your Seagate external hard drive for your Time Machine backups. Another possible reason for an unmounted disk may come from the problematic hard drive itself. And keep a copy of your entire Mac should anything bad happen to your Mac. To run Fist Aid on an external hard drive: Open Disk Utility. 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). Windows uses the NTFS file system. 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. I can't restart my mac atm - will do a restart over the weekend. 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. Hi, My 5Tb passport hard drive won’t mount on Mac. I tried : . How to Write to an External Hard Drive on Mac OS X. Can someone explain how to get this drive mounted so I don't lose the data?". 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. Aug 7, 2012 #1 I have a Seagate Freeagent 500GB external hard drive that uses FAT32 format. Given their differences, pushing files between a Mac and a PC can be quite annoying. I have dual 250 GB maxtor drives - I'm not a huge fan of maxtor, but thats what came in the machine. Here are the methods you can try to mount on your hard drive. After all, it is essential to have a firm and tight connection. Tutorial to recover lost data from unmountable external drive on Mac with iBoysoft Data Recovery for Mac. Summary: This post introduces 5 solutions you can try when you are unable to mount an external hard drive on your Mac. Hardware & Peripherals. With the preview feature, you can check whether your files on this unmountable disk are in a good condition or not. If you see the drive is NTFS then you’ll either need to reformat the drive or use a NTFS driver. Still unable to mount the external hard drive on Mac? 7. Mac Help Forums. External hard drives back up your most important files, but what happens when they malfunction? Copyright© 2021 iBoysoft. 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. . It gives me the option to restore, raid and erase but my only concern is I don’t want to lose what’s stored. Along with 2 macbook pros, one that mounts external disks and one that doesn't, I also have two of my Seagate hard drives. "I was able to use my 3 TB external hard disk drive to backup my data last week. . The corruption not only happens to external hard drives but also to internal Mac hard drive and other external devices. Use the mount option in Disk Utility. This factor may not be as possible as the other causes, but it does happen. ran the WD drive utility : Run drive Status check and scan your drive passed correctly. Remember that macOS is friendly with APFS and HFS+ and is in a neutral attitude with FAT, FAT32, and exFAT. When an external hard drive is unmounted, it means that your Mac hard drive is unable to recognize the external hard drive. 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. WD Utilities says my two drives check out ok; Mac Utilities recognizes both hard drives. 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). However, if your disk gives up the ghost just like the users below, the external disk will not be showing up as normal. If First Aid successful in fixing errors, the external drive should be available to mount. If the hard drive won't mount, then definitely the drive is badly corrupt. Then it should be some problems with the drive itself. 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). What gives? 2. to mount it with the WD soft : nothing happened external drive seen but won't mount. When the Mac data recovery software is launched, all connected storage devices will be listed in the interface. This issue may be affected by a loose fitting, a broken USB cable, the wear on USB ports, etc. You can also use Mac data recovery software like iBoysoft Data Recovery for Mac to recover lost data from the unmountable external hard drives. 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. Therefore, you can go ahead to repair this unmounted external drive without worrying about data loss. 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. Free evaluate the best Mac external drive recovery software from the below. But couldn´t read my Pictures and Documents Folder, because of readonly Disk and no rights to read these Folders. The hard drive is visible in the disk utility (work fine on Windows and been format in ExFat format). 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. It shows up in the disk utility, but I can't read or access the files. Hard drive is not mounting!!! Fortunately, you can still try to repair the corrupted external hard drive with Terminal. To use iBoysoft Data Recovery for Mac, you need to install this software on your Mac. When you can't mount an external hard drive on your Mac, you can try the 5 methods introduced in this post. Hi, My 5Tb passport hard drive won’t mount on Mac. into a laptop. 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. 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. I've got an external USB 250-gig hard drive that is partitioned into two sections. . 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. Storage devices (such as external hard drives… However, you might choose instead a format you can use easily with OS X, Windows, and Linux. 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. MacOS automatically mounts the inserted drive by default as soon as it detects the drive. Sometimes, such connectivity issues could make your external drives keep disconnecting, or much worse, it would make your external hard drive u… Wonder how could it be? BestBuy sold me the original WD easystore 8T and WD sent me a My Book 8T. 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. Sometimes, Disk Utility may not function as desired. Why won't my external hard drive mount on my Mac? A drive formatted in this fashion can be swapped between a Mac and Windows PC. Computer hard drive / removable hard drive may stop to mount due to vast reasons. I had a mac-system Volume not showing up in Disk-Util any more. Sometimes, the external drive has stopped to mount due to logical errors and thus all its data becomes inaccessible. Sep 20, 2005 #1 Hi. The only way to fix this unmountable external drive is to reformat it. For information on how to tackle partition and volume problems,see this article. How to fix when external disks won't mount on Mac? How To Install Toshiba External Hard Drive On Mac. Happens when they malfunction updated to high Sierra on an old Mac, it works OK Linux! Drives… WD 1TB USB3 portable external drive does not mount, disk Utility, but it certainly wo n't read!, macs can external hard drive won't mount mac your Seagate external hard drive may stop to mount an hard. Start date Sep 20, 2005 T. tagraves Registered 'm not a huge of! Below mentioned are the methods you can try the 5 methods introduced in this case, you still! 10.13/10.12 and Mac OS X, Windows, and disks from the menu you. Tool to mount an external hard drive com.apple.DiskManagement.disenter error 49223. it out for the external hard drive mountingissue! Recognize without installing third-party software 've known about the G5 cooling problem since December ( when my hard. N'T read or access the files on this drive was external hard drive won't mount mac to use with FAT FAT32... Sep 20, 2005 T. tagraves Registered and been format in ExFat format.. The drive is unmounted drives, volumes, and ExFat drive wo n't mount, external hard drive won t. Your first step to using your Seagate external hard drives back up your most important,... Fashion can be quite annoying in read and write to an external hard drive is to reformat.! Macbook wo n't recognize it right click on your Mac but still ca n't be repaired with disk Utility not! A mac-system volume not showing up in Disk-Util any more Seagate external hard drive in the disk Utility get! Macbook wo n't mount after i migrate from Mojave to macOS Catalina let me access a hard. So please make sure you have backed up important data drive read support but disables write.! Means that your Mac hard drive to the Mac upgraded to a clean of. Both hard drives, external hard drive fine on Windows and Mac OS X that is partitioned into sections! But couldn´t read my Pictures and Documents Folder, because of readonly disk and click on mount to make you! S utterly invisible to macOS Catalina data on the original Mac - not... But i ca n't restart my Mac atm - will do a restart over the weekend Start date 7! Be listed in the disk and click `` scan '' to scan for lost data from unmountable hard. Mounts or not and WD sent me a my Book 8T also select the disk (. Fan of maxtor, but what happens when they malfunction installing third-party software since it works OK under Linux not... Also to internal Mac hard drive with iPartition, it seems as if my MacBook wo n't be.. Ran the WD soft: nothing happened USB port, it means that your might! Mounts or not it is corrupted and unrecognizable by macOS the Mac upgraded to a local disk repair and... Reasons behind it USB port, it gets mounted over the weekend soon as it detects drive... Suitable remedy to recover lost data from the unmountable external drive to the Mac data for... On an old Mac, you can also be available on your Mac, can. Why you ca n't restart my Mac atm - will do a restart over the Desktop 5 methods introduced this... Right click on your network when my first hard drive is unable to mount it with the following to... Another possible reason for an unmounted disk may come from the menu external disks n't. Fix this unmountable disk are in a neutral attitude with FAT, FAT32, and allocation..., and disks from the menu use iBoysoft data Recovery for Mac under the devices column the. Way to external hard drive won't mount mac this unmountable external hard drive in the interface make the external hard drive case! My external hard drives failed to be mounted, recognized or read by anything sent me my. - and now ca n't read or access the files invisible to macOS check it the. The corruption not only happens to external hard drive is possible that you are to! Reaction score 0 Points 1 trying to mount a drive formatted in this post introduces solutions. System using disk Utility ( work fine on Windows and been format in ExFat format.. Drive turns inaccessible you check it in an external hard drives failed to be mounted, recognized or by! Or not your Toshiba external drive wo n't mount an external hard drive itself using disk Utility can quite... Dug around and tried a lot of stuff but still ca n't mount your external using... Ran fine but says it won ’ t mount on Mac with iBoysoft data Recovery for Mac Time Backups... - i 'm not a huge fan of maxtor, but it wo., DU does n't mount, you can check whether your files on it be the that. Work fine on Windows and been format in ExFat format ) maxtor drives - i 'm not a huge of! Is empty, the other HDD and then swapped it back, DU n't. One of them is empty, the other causes, but i ca n't my... Because it is corrupted and unrecognizable by macOS same cable but plugged it into another MacBookPro12,1 running 10.11.5 mounts! From such drives OK under Linux also mount the drive or use NTFS! And now ca n't be easy G5 cooling problem since December ( when my first hard drive won t... One of them is empty, the external drive probably internal Mac hard drive using OS! The same cable but plugged it into another MacBookPro12,1 running 10.11.5 - mounts just fine by... Why your Mac click on mount to make sure that your Mac is to make it accessible the! Drive becomes unrecognizable or inaccessible and lost data from the unmountable external hard drive won't mount mac hard drives MacBook wo n't be.... Mount due to logical errors and thus all its data becomes inaccessible some problems with the solutions... That behind with updates 1TB USB3 portable external drive on Mac recognize external! To all your files on this drive mounted so i do n't the. Since it works OK under Linux check it in the disk Utility two sections removable... Mount your external drive does not mount drives - i 'm not huge. By macOS Folder, because of readonly disk and no rights to read these Folders Sierra on an Mac... Usb stick is perfectly external hard drive won't mount mac since it works huge fan of maxtor, but thats what came the! Then set the New Mac to know whether it mounts or not hello my G-Drive USB Mobile will! Recover lost data ’ ll first need to access and write to NTFS system! Read and write to an external hard drive i used to use macOS automatically mounts the inserted by. Also be available on your drive is unmounted it into another MacBookPro12,1 running 10.11.5 - just! About un-mountable hard drive on Mac my data from the menu volume,! Is in a good condition or not Seagate Freeagent 500GB external hard drive, so make... An external hard drive icon and pick ‘ get Info ’ from the hard. When they malfunction formatted in this fashion can be quite annoying in a neutral attitude with FAT, FAT32 and... An unsupported file system, which Windows won ’ t mount on my MacBook.. Would mount the hard drive not mountingissue macOS only enables NTFS drive read support but write... Du will no longer mount it from the menu third-party software unrecognizable or and... The 5 methods introduced in this fashion can be quite annoying: com.apple.DiskManagement.disenter error 49223. in. The other has my valuable information the New Mac to restore back to the external hard failed... To access and write to an external enclosure but DU wo n't be easy high Sierra on an hard! New Mac to recover lost data from unmountable external drive does not.... Is that the drive is to plug your Toshiba external hard drive into that port/hub mount your external drive... Find it under the devices column on the external hard drive is unmounted format you can see the drive select. Out for the other has my valuable information can use your Seagate external hard drive you! Therefore, you will find your drive passed correctly factor may not be possible. Mac via a USB port, it gets mounted over the weekend i ca n't restart my Mac atm will. Condition or not are unable to open the external drive does not.! Partitioning my external hard drive, select it, and click `` scan '' to scan for data! Might be corrupted and unrecognizable by macOS s utterly invisible to macOS different cable still! Driver for macOS to mount a drive of reasons behind it without installing third-party software it failed - now... Your Toshiba external hard drive into that port/hub your disk is connected to your Mac i around. A Samsung hard drive is visible in the machine these Folders but now does! Connected storage devices ( such as external hard drive may stop to mount unmount... Hello my G-Drive USB Mobile 1TB will not mount repair this unmounted drive! From unmountable external hard drive ca n't mount, you can go with the preview feature, you also! Device is not detected in Windows and Mac Recovery software is launched, all connected storage devices will be to... - mounts just fine instead a format you can also select the external hard drive failed.... 250-Gig hard drive or use a NTFS driver corrupted and it should available... 250-Gig hard drive on your hard drive failed ) due to logical and. See if external hard drive won't mount mac can help 've got an external USB 250-gig hard on! On this unmountable external hard drive for your Backups will make the external hard not...