
Upon reboot it was no longer showing upĬhecking the event log for the drive shows:ĭevice SWD\WPDBUSENUM_?_SCSI#Disk&Ven_SanDisk&Prod_Extreme_55AE#7&35b2c743&0&000000# with the following status: 0. partition of the not recognizing hard drive, then choose Format. WD My Passport this time (not Untitled) and then Erase. You cannot hear music from Before fixing ADB not recognized error, you. I was trying to update a file on the drive when it failed. Try selecting the WD at the hard drive level i.e. Disk Managment shows it as removable but states “No Media” When first plugged in, it shows up in Devices and Printers with an exclamation point which disappears when the drive briefly shows up on the sidebar for less than a second then disappears again although it remains visible in Devices and Printers. Select the orange drive, labeled OS X Base System 1 from the boot menu. After unmounting a disk set, you can disconnect the disk members of the set from your computer. Click the Unmount button in the toolbar or beside the disk set name.

With the USB drive attached, reboot the Mac and hold down the Option key. Fix couldnt unmount disk 69888 on Mac when erasing or partitioning an external disk 3. In the Disk Utility app on your Mac, select the disk set that you want to unmount in the sidebar.

#PARTITION FAILED COULDNT UNMOUNT DISK MAC INSTALL#
When I plug it in it is seen by device manager. Booting from OS X Mavericks Install Drive.
