CoreStore Encryption Error on Mac Lion
- by Michael
I am trying to encrypt an external drive using diskutil CoreStorage on Mac Lion 10.7.4. I thought the only requirements were that the drive have GUID partition scheme and Journaled HFS+ file system. I think my drive is configured accordingly but when I type the following command I get an error message back:
Michaels-MacBook-Pro:~ Michael$ diskutil cs convert disk2 -passphrase TestPassword
Error converting disk to CoreStorage: The given file system is not
supported on Core Storage (-69756)
Here are the details reported for the drive in question:
Michaels-MacBook-Pro:~ Michael$ diskutil list disk2
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk2
1: EFI 209.7 MB disk2s1
2: Apple_HFS Test1 499.8 GB disk2s2
Michaels-MacBook-Pro:~ Michael$ diskutil list disk2
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk2
1: EFI 209.7 MB disk2s1
2: Apple_HFS Test1 499.8 GB disk2s2
Michaels-MacBook-Pro:~ Michael$ diskutil info disk2s2
Device Identifier: disk2s2
Device Node: /dev/disk2s2
Part of Whole: disk2
Device / Media Name: Test1
Volume Name: Test1
Escaped with Unicode: Test1
Mounted: Yes
Mount Point: /Volumes/Test1
Escaped with Unicode: /Volumes/Test1
File System Personality: Journaled HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended (Journaled)
Journal: Journal size 40960 KB at offset 0xe8e000
Owners: Disabled
Partition Type: Apple_HFS
OS Can Be Installed: Yes
Media Type: Generic
Protocol: FireWire
SMART Status: Not Supported
Volume UUID: 1024D0B8-1C45-3057-B040-AE5C3841DABF
Total Size: 499.8 GB (499763888128 Bytes) (exactly 976101344 512-Byte-Blocks)
Volume Free Space: 499.3 GB (499315826688 Bytes) (exactly 975226224 512-Byte-Blocks)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: No
Internal: No
I'm a little concerned that the "Partition Type: Apple_HFS" entry is causing the problem, but I don't know how to change that. I only seem to be able to control the "File System Personality: Journaled HFS+" in Disk Utility.
Can anyone shed some light on this for me?