


Now while on the PC you may wish to consider reformatting that partition using ExFAT (if supported on your PC.) This format is more compatible with both OS X and NTSF supporting long file names and other FAT filesystem irregularities. When you connect the drive to your PC it should have no problem reading the partition set up for a PC. The one you wish to use on a PC you should format MSDOS (FAT). Re-partition the drive to create the three partitions. Enter CREATE PARTITION PRIMARY SIZE122880. Now, we have to create a partition for Windows 10 to be installed in. The format process can take up to several hours depending upon the drive size.ħ. This will wipe the partition table and uninitialize your external drive. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.Ħ. Click on the Erase tab in the DU main window.ĥ. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Set the format type to Mac OS Extended (Journaled.) Click on the Apply button and wait until the process has completed.Ĥ. Click on the Options button, set the partition scheme to GUID then click on the OK button. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. This command unmounts the external drive. Type unmount /dev/disk4s1 and hit Return. Note down the file system identifier of the external hard drive, say /dev/disk4s1. In the Terminal window, type df h and hit Return. Click on the Partition tab in the DU main window.ģ. Steps to repair Mac external hard drive by using Terminal are as follows: Go to Finder > Applications > Utilities > Terminal. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Open Disk Utility in your Utilities folder.Ģ.
