Formatting external hard drive for mac error
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How to Reformat an External Hard Drive for MAC?
The easiest way to add storage to your Mac is to buy an external hard drive. Once you have it, your first task is to pick a suitable file system for that drive depending on your intended usage. For a Mac user, neither of these file systems are desirable. You should see a list of connected drives and mounted disk images listed in the left-hand sidebar. Click on one to select it and view its name, current file system, and available space.
To format a new drive to a different file system, select it and click Erase.
Click Erase in the dialog box to begin the formatting process. Remember that you will lose all data on the drive by doing this.
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Read More before moving on. Now it's the Mac's turn. I cancelled the operation cause it was very slow.
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You'll need to change diskX to whatever the number is for your drive. You can find that out in disk utility, select the drive, click info, and look under 'BSD device node'. This made the troublesome drive's item in the sidebar become an item of larger item sorry my vocabulary sucks. In disk utility Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Select the volume you just created this is the sub-entry under the drive entry from the left side list.
Click on the Erase button. Where X is a number. First run sudo diskutil list to find the relevant disk3, etc - check the size and make sure it's the right disk! Sounds simple, but first boot after an OS upgrade or with a failed disk mount due to timing problems, and the system can get confused.
A reboot sorts this out. Started the mac, and all was well: reformatted and on its way. On the left hand side of your finder, check the list of devices that are mounted. There may be more than one disk mounted. Eject all the mounted ones except for the one that you have to format. Now go to disk utility, select external hard drive and erase. This should work. I was having exactly the same problem as described above; unable to reformat my 16GB USB after interrupting an "erase free space" command. The command will force a reformat--of course any data will be lost, but your drive will be usable.
I simply selected it and formatted it and voila! It mounts and works! The only solution for me was to format this USB drive on Windows. Also, the Quick Format didn't seem to work, I had to performa a standard format who took very long. I don't understand what happened to the drive to be honest, I never had any error when formatting until now. Sometimes there's a problem with flash disk that is null name and only format corrupting data.
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Other problem is flash disk that are no media. There's no solution for this removable disks. Thank you.
disk utility - Unable to format / erase hard drive - Ask Different
That was exactly it. Problem solved. You need to select the disk name one level higher. Support Downloads Knowledge Base. German Spanish Italian French. HGST Support. Error message when formatting a new drive WD External Drives.
Format an External Hard Drive or USB Flash Drive for Mac OS X
External Drives for Mac. JcVeras March 15, , pm 2. JcVeras March 16, , pm 4. Forgettingcurv July 28, , pm Hope this helps someone. Nagykrisztian December 16, , am