Each of these items will have a corresponding UUID associated with it. The output of this command will look like a hierarchical tree that shows the physical drives involved, the logical volume family created from these drives, and then the logical volumes themselves that are on these drives. To do this, first open the Terminal and get a listing of the encrypted disk devices by running the following command:
#CHANGE PASSWORD ON MAC OS X DMG PASSWORD#
Click the image for a larger view.Īs with most disk management operations, changing the encrypted disk's password can also be done using Terminal commands, for if you only have access to a system via SSH or Single User mode. Using the Terminal, be sure the UUID is the one for the Logical Volume (underlined in blue). Then go to the File menu and choose "Change Password," and you should be presented with a standard new password prompt that requests that you enter the old password and then the new password twice, and provide an optional password hint. Open the Disk Utility program in the Applications > Utilities folder, and then select your encrypted volume in the sidebar. You can change a password by first decrypting the volume and then encrypting it again, but this will take a while for drives with large numbers of files on them.Ĭhanging a password for an encrypted volume can be done without having to wait for it to decrypt and then encrypt again. These features are convenient, but if you wish to change the password for an encrypted drive, you will find that this feature is not available along with the options for encrypting. Selecting "Change Password" from the File menu will show the standard new password prompt. Furthermore, you can encrypt or decrypt any secondary volume by right-clicking it and choosing the option to do so, or by using the Terminal. While you can store files in an encrypted disk image, you can also use FileVault to encrypt your boot drive. With data security being an all-too-common concern, the options for encrypting data in OS X are welcome additions that are quite easy to implement.
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