Wd my book partition failed couldn't unmount disk

Solution disk erase failed with error couldnt unmount disk mac. Formatting the hard drive or partition scheme will recreate a new hfs file structure on the hard. If the partition you are converting contains system fileswhich would be the case if you are converting the hard disk that the. How to force a hard drive to unmount for formatting in mac. Wd passport one terabyte not mounting on macbook pro. Examination failedcannot unmount disk error qnap advanced. Seagate external hard drive not showing up in my computer my 320 gb seagate external hard drive is detected but not showing up in my computer. I am trying to erase under exfat format and master boot record since i. Got an external hard drive mybook western digital by someone who didn t know im using linux. My passport wd external hd fails to mount to desktop. To unmount a disk image in windows, open my computer, select the disk image, and click eject this disk.

The usb boot drive is attached to the mac, and the system is rebooted. Reboot into win 7 x64, and it is still not working. Fix and repair wd my passport ultra not detectedshowing. Is my only option to boot into recovery commandr at startup and erase the volume. My passport wont format external drives for mac wd.

Problem w wd my bookformatting and sharing apple ios. Converted to ntfs file system and loaded the device with data. Tackle external hard drives randomly ejecting in os x macissues. This video show an alternative way to reformat and erase your sd drive when you receive the following error within. Bought wd 6t external my book to use with time machine. You may have to still change the number it may not be devdisk2 but devdisk3 or something else, but most terminal command not found errors ive seen have been due to people not typing exactly what theyre seeing no space where there should be one, or an i instead of 1. Partition issue, couldnt unmount dis apple community. Disk images can also be unmounted, which may free up some ram used by the system to mount the image. After all of above, your qnap nas will reboot and everything will get back to normal. My wd external drive unmounted itself and now does not work. Without moving any wires, i reboot the desktop into knoppix, and the wd my book drive works perfectly. I keep getting the message erase process has failed. Buy wd my book 1tb external hard drive storage usb 3.

Partition failed could not unmount disk mac data recovery. Wd my book home edition 1 tb bought from costco last week. You would have to boot from another device, such as a time machine backup drive, lion internet recovery, or a usb drive prepared with lion recovery disk assistant. Highlight your drive and click partition in disk utility. Apr, 2015 the only thing i can think of is that youre accidentally typing it wrong. Feb 12, 2012 im trying to erase my ssd internal drive that is corrupted software yosemite.

However if theres enough data left the operating system. Tried to erase wd my book for mac external hard drive and it. If you are having a similar problem on your wd my passport ultra hard drive or other brands of external hard drive or devices, dont worry. Normally, any couldnt unmount disk error is attributed to circumstances where the boot drive is. Cant unmount or reformat wd essential 2t wd community. Jun 14, 20 you can force unmount a drive by running the following terminal command. How to force a hard drive to unmount for formatting in mac os. Couldn t open disk or the disk couldn t be unmounted. By following steps given in this page, you can easily restore data from wd my book essential 2tb desktop hdd. Mar 05, 2012 i received partition map check failed because no slices were found. Couldnt unmount disk, then you may have to force an unmount through the terminal. Use the command line to fix couldnt unmount disk error access terminal application. Right click the disk and choose create new simple volume.

The wd hard drive failed to show up on my pc and i couldnt access saved data either. Do you see any processes in activity monitor that are higher than usual with the exfat drive attached. Is there a possible way that can help me to repair the not detectable wd drive to work again. Force an external mac drive to mount via command line terminal commands in mac os x duration. My passport wont format external drives for mac wd community. The only thing i can think of is that youre accidentally typing it wrong. I successfully erased all partitions but when i got to reformat in disk utility i get partition failed with the error. Some logical volumes partitions file systems become corrupt during plug and play or electrostatic phenomena. But that of disk utilities and delete the hdd partition i. Did you delete the partition before formatting the drive. Resolve a couldnt unmount disk error in disk utility. Instead of selecting my passport, selecting its parent wd my passport and following the remaining instructions worked.

If this is your first backup, or the first time to a new external drive partition, the most common cause might be that the drive has not been formatted properly. Tired through terminal to force it to unmount diskutil unmountdisk force volumes my book but failed. I had the same problem with a western digital 2tb my book studio. Are you facing partition failed error couldn t unmount disk on your mac operating system. Check out wd my book 1tb external hard drive storage usb 3. Now in disk utility, sometimes i see the ssd drive and sometimes i boot and its not the. How to fix deep formatting problems with os x drives. How to use macos sierra disk utility to partition external. I was originally intending the message to just be about the couldnt unmount disk issue, and then the gray bars and lines spontaneously appeared as i was typing about the second attemp to erase the disk.

In du on the partition tab highlight the last partition and click the minus sign. Choose initialize disk and pick one partition system between mbr and gpt. Aug 19, 2014 tried to erase wd my book for mac external hard drive and it says it can t. Does not show in finder but does show as mounted in disk utility, although the partition does not mount. How to fix partition failed error couldnt unmount disk. I have recently upgraded to mavericks and time machine stopped then. Unable to mount external hard drive on mac solved youtube. Couldnt unmount disk error message usually pops up when you try formatting. Due to its different data storage sizes and portable nature, they are used by a large number of users to backup their data. Then go to the erase tab and select the new expanded partition then click erase. Tried to find a solution to my question by looking first to the questions already asked about it, but couldn t find anything suitable, some im trying my luck. Ieenews ieenews windows, iphone, android, gadget, mac, how to forum apple how tos unable to unmount mac os x disk base system couldnt unmount disk, partition failed couldnt unmount disk jul 22, 2017 at 5.

How can i reformat a wd 400gb my book hard drive from ms. I had to remount either its a rightclick or a button the partition from disk utility and then repair the partition. Error message when formatting a new drive external drives for. How to fix partition failed couldnt unmount disk error in mac. I how to solve examination failedcannot unmount disk error with unmounting volume with qumount ii 2. Tried to erase wd my book for mac external hard drive and it says it cant. In my experience the mac finder warning disk not ejected properly arises due to lack of full compatibility of the external device.

It has already got some media files on it but plenty of free space about 75% free. Expand the western digital my book drive on the left side and right click on the partition you wish to mount, select mount. Then i attempted a firmware update, which failed, and my desktop computer no longer recognized the drive. I tried to follow your way of reformatting as i am using it on mac.

All volume failed to mount the data volume on the drive is not accessible. Device manager shows no issues and reports it as wd my book 1140 usb device. Tried to erase wd my book for mac external hard drive and. Open the disk utility app and highlight your external hard drive. How to fix partition failed couldnt unmount disk error. Dec 07, 2010 my partitioned wd elements drive appears to have failed, some partitions will not unmount. Jul 22, 2017 partition failed couldnt unmount disk. In mac os x, select the disk image on the desktop and drag the disk image to the trash, which will change to an eject icon. My mac g5 can read it, but i discovered that in that format i could not recover data in the event of a crash.

How to solve my wd hard drive not recognized in windows 10. Western digital my book partition recovery remo software. Was about ready to thromw wd my book studio through the window until i found this my book failed to unmount when erasing or partitioning more less. How can i reformat a wd 400gb my book hard drive from msdos to mac os extended journaled format. Either your wd mybook enclosure has failed or the disk itself has failed. If your hard drive does not work well, or you just want to know more about the features you have in case of an accident, today we tell you how to use the disk utility to check and repair the hard drive in os x. This hard drive came out of the box formatted for msdos file system. How to format or partition an external hard drive for mac. I purchased a wd my book 1tb external hard drive, connected it to my macbook pro no leopard, no time machine, and attempted to back up everything on my laptop to it. I mean, some devices generate such issue but others do not on the very same mac.

Drive to unmount for formatting in mac os x disk utility. Jan 01, 2011 i have an external hard drive that works fine normally, i took it out when it wasnt safe a few times accidently cuz my computer was acting up and it said i had to repair it. Disk management shows the file system as raw and healthy primary partition. Apr 05, 2014 how to fix deep formatting problems with os x drives. I have a wd my passport external hd that is currently formatted for a pc and i would like to format it to exfat. However, it still can fail to fix disk issues accompanied with some error. The new pc reads the external drive ok, but when i tried to set it us as a backup it told me it couldnt as it wasnt ntfs, but it actually is. How to fix deep formatting problems with os x drives macissues. Feb 08, 2020 how to partition an external hard drive on mac. It extracts this name because of its book like appearance. Restoring a deleted recovery partition on a macjune 18, 2015in apple boot partition.

I guess its the issue my book live data volume failed to mount customer service. I brought my laptop to the apple store to get it restored. Automatic way to resolve partition failed could not unmount disk issue. Then expand the first partition to include the whole drive bottom right hand corner. What does it mean to mount or unmount a disk image. Using disk utility to erase disk wont unmount more. Resolve a couldnt unmount disk error in disk utility for mac. The screenshot shows that you should delete one level lower in the hierarchy than actually works.

Jun 01, 2015 32 thoughts on tackle external hard drives randomly ejecting in os x hax june 1, 2015 at 7. But when i click erase, it says erase process has failed. My partitioned wd elements drive appears to have failed, some partitions will not unmount. I already have two wd drives which i have correctly formatted, and they are working. It had been connected to my older pc which was running windows 7 and also to a sony blueray player at times which both read the disc ok and still do. If it does then run disk first aid and tell it to repair. I am curious if there is something like spotlight or fsck trying to access the drive in the background thus you have issues ejectingunmounting andrew u. At the boot menu, choose disk utility if using an installer disk, pull down the utilities menu to access disk utility go to first aid and verify the disk, then repair if needed now perform the original task that threw the couldnt unmount error. I assume youre trying to format it on a mac, probably the error is because it failed to unmount the disk. Partition failed with the error, could not unmount disk. Disk erase failed couldnt unmount disk chedens alexis.

It sounds like youre trying to partition the drive. Using disk utility to erase diskwon apple community. Nov 17, 2014 ive got a 3 tb western digital my book studio external drive that i use for backups. Click on this link and get to know how to perform recovery of data from western digital velociraptor hard drive on mac os. How to force a hard drive to unmount for formatting in mac os x. Nov 08, 2018 force an external mac drive to mount via command line terminal commands in mac os x duration. When the list of all disks appears you need to found the disk that you want to force unmount. There are many solutions when the user faces these problems. My passport wd external hd fails to mount to desktop ifixit.

I then tried to connect a wd my book 3tb external drive to act as a backup disc. If you want to create multiple partitions on your external hard drive in fact, you should for better file organization, heres a stepbystep guide. My partitioned wd elements drive appears to have failed, some. Type sudo diskutil unmountdisk force devdiskx line. Unable to set wd my book 3tb external drive as backup disk. This article demonstrates you how to solve wd hard drive like wd elements or wd my book being not recognized windows 10 in detail. My book live data volume failed to mount ssh must be enabled hard drive on my macbook pro has two partitions. With disk utility running see if it shows on the left side.

Id like to be able to use the passport with the time machine. Hello all, today i bought the 4tb my passport from best buy. External hard drive not mounting apple developer forums. How to partition an ssd that fails with error 69888. Select startup drive, it usually names macintosh hd on the second line of the side bar. Note there are plenty of options you will find on internet for this issue, e. If the internal drive is causing the issue because the os x recovery exists as a partition on the physical disk, unable to modify or unmount the internal drive, then the preference must be given to a network drive or an external drive. Disk utility mainly known for its trouble free performance but some times.

Have you ever tried to format a disk in mac os x and disk utility wont unmount the hard drive for formatting. Details say unmounting disk, couldnt unmount disk, operation failed. Apr 10, 2020 while scanning forums, we find so many users are bothered with the external hard drive not showing up issue. I followed the directions on how to partition and format for the mac. My partitioned wd elements drive appears to have failed.