filevault – FileVault2: how do I take advantage of the restoration key when requested for a “Disk Password”?

Use the restoration key to reset the login password

• Retrieve the restoration key you copied down while you turned on FileVault disk encryption.

• In case you can not discover your restoration key, however saved it with Apple, contact Apple Assist.

• Restart the pc.
  On the login display, click on on the account to unlock and reset the login password.

• Within the password subject, click on on the Query Mark (?)

• In case you created a password trace, it’s displayed.

• In case you bear in mind your password then enter it now.

In case you nonetheless have to reset your password, click on the underside line “reset it utilizing your Restoration Key,” after which enter your restoration key.

Various methodology:

Restoration

If a person forgets their password, and a restoration key was put in earlier than FileVault 2 was turned on, you should utilize the next steps to unlock an encrypted disk. Notice: This process solely works when the pc is began from OS X Restoration.

Restart the shopper whereas holding the Command and R keys.
Join an exterior drive containing the FileVaultMaster.keychain file with the non-public key.
From the Utilities menu, choose Terminal.
If the keychain containing the non-public secret's saved in an encrypted disk picture, use the next command to mount it:

hdiutil connect /path/to/diskImage

Use the next command to unlock the FileVaultMaster.keychain file; make sure to insert the right path to your keychain file:

safety unlock-keychain 

For instance, on a quantity named ThumbDrive:
safety unlock-keychain /Volumes/ThumbDrive/FileVaultMaster.keychain
Enter the grasp password to unlock the keychain. If the password is accepted the command immediate will return.
Use the next command to checklist the drives and corestorage volumes:

diskutil cs checklist

Search for the UUID of Logical Quantity, normally the final within the checklist. Choose and replica the UUID for the following command step.
Use the next command to unlock the encrypted disk. Make sure you insert the UUID from the earlier step, and the right path to the keychain file:

diskutil cs unlockVolume  -recoveryKeychain 

For instance, you'd use this command if there was a UUID of 2F227AED-1398-42F8-804D-882199ABA66B on a quantity named ThumbDrive:
diskutil cs unlockVolume 2F227AED-1398-42F8-804D-882199ABA66B -recoveryKeychain /Volumes/ThumbDrive/FileVaultMaster.keychain

Enter the grasp password to unlock the keychain. The amount will likely be mounted. Now you can again up knowledge utilizing Disk Utility, or through the use of command line instruments resembling ditto.