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Question: External Drive: partition map check failed because no slices were found

Hi, I'm trying to use my new 1 TB WD Elements external drive to back up my 2013 macbook Air but it's not working in Timecapsule.


I get the following error message:

partition map check failed because no slices were found

That's the same message I get in First Aid whether I try to "repair disk" and "verify disk."


In Terminal, I typed in: "diskutil info disk2" and this is what I got:

Device Identifier: disk2

Device Node: /dev/disk2

Part of Whole: disk2

Device / Media Name: WD Elements 25A2 Media


Volume Name: Not applicable (no file system)


Mounted: Not applicable (no file system)


File System: None


Content (IOContent): GUID_partition_scheme

OS Can Be Installed: No

Media Type: Generic

Protocol: USB

SMART Status: Not Supported


Total Size: 1.0 TB (1000170586112 Bytes) (exactly 1953458176 512-Byte-Units)

Volume Free Space: Not applicable (no file system)

Device Block Size: 512 Bytes


Read-Only Media: No

Read-Only Volume: Not applicable (no file system)

Ejectable: Yes


Whole: Yes

Internal: No

OS 9 Drivers: No

Low Level Format: Not supported


Karims-MacBook-Air:~ karimladak$ diskutil info disk2



Would really appreciate the help!! Thanks

MacBook Air

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Answer:

Looks like you'll need to format that drive before you can use it. I'd recommend formatting it a Mac OS Extended.

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Question: External Drive: partition map check failed because no slices were found