harv47 Author

Level 1

27 points

How to unlock a locked drive?

Partial output from diskutil list:

/dev/disk5

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *1.0 TB disk5

1: 0xEE 1.0 TB disk5s1

Partial terminal session:

Macintosh:~ harv$ diskutil mount /dev/disk5

Volume on disk5 failed to mount; if it has a partitioning scheme, use "diskutil mountDisk"

Macintosh:~ harv$ diskutil mountDisk /dev/disk5s1

Volume(s) mounted successfully

Macintosh:~ harv$

Disk Utility can't do anything with this disk.

Drive Genius sees the drive, but says it must

be unlocked before I can initialize it.

How do I unlock it?

Thanks,

Harv

Mac Pro (Early 2008), Mac OS X (10.7.4)

Posted on Jul 8, 2012 5:15 PM

23 replies

Kappy

Level 10

361,995 points

Jul 8, 2012 8:32 PM in response to harv47

What do you mean by "Disk Utility can't do anything with it?" Have you tried repairing the drive or repartitioning the drive?

WZZZ

Level 6

13,238 points

Jul 9, 2012 8:05 AM in response to harv47

I'm seeing Partition Map Scheme: Unformatted. It should be GUID Parition Table. You have to go back in and enter that.

See this article from Pondini

http://pondini.org/OSX/DU1.html

Kappy

Level 10

361,995 points

Jul 9, 2012 11:46 AM in response to harv47

Did you repartition the drive per Step 3? If so and you still are having this issue then I would contact Newer Tech's support to see if they have a solution.

WZZZ

Level 6

13,238 points

Jul 10, 2012 9:16 AM in response to harv47

That error might mean the drive itself or the chipset in the enclosure is failing or failed. (Partition Map Scheme is still showing up as Unformatted.)

harv47 Author

Level 1

27 points

Jul 15, 2012 2:26 PM in response to parhamfromfrisco

Did you notice that Disk Utility was unable to perform any of the things I tried?

su_root

Level 1

0 points

Jan 14, 2015 11:28 AM in response to su_root

Sorry about the spelling errors; it should be disk0s2 and not disk02s. Also step 5) could be obsolete now when I try to recall what I did..

aysar8

Level 1

15 points

Jul 17, 2016 2:31 AM in response to Eric Root

I have read your comment, regards.

Sep 15, 2017 9:52 AM in response to harv47

I solved this by cinnecting new usb pendrive and installing os sierra on pendrive

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How to unlock a locked drive?