Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I set up File Vault 2 in Mac OS X Lion with Pre-Boot Authentication (PBA). In PBA-login my USB-keyboard is working, while using a wrong keyboard layout. I can neither use my magic touchpad nor an USB-mouse in PBA. Thus I can't change the keyboard layout located in the upper right corner. I tried unplugging all USB-devices except keyboard and mouse. Nothing seems to help and the mouse cursor isn't moving.

How can I get magic trackpad or USB-mouse to work in PBA login screen or manually set the used keyboard layout in PBA?

Update: Still no (USB-)mouse or bluetooth trackpad support in File Vault 2 Login Screen. Today I talked to Apple Support for over one hour with no result. Every idea is appreciated.

share|improve this question
is this problem still unresolved? –  Daniel Beck Jan 18 '12 at 18:45
I got a different USB-mouse working. Magic Trackpad is still not supported. –  Chris Jan 20 '12 at 12:09

3 Answers 3

My Magic Trackpad seems to take a moment to recognize in the EFI screen: when I click it, its green power light turns on, and then the system recognizes it a moment later. Have you tried that, or tried other trackpads/mice?

share|improve this answer

I'm having the same issue and currently I found two workarounds:

Workaround 1 - turn off/on the mouse

  • turn off the mouse (tiny on/off switch on the bottom of the mouse, put it in lower position)
  • turn it on - small green led indicator should start to blink -> searching for bluetooth connection
  • wait for a minute until the indicator turns steady (green light)
  • check if mouse works
  • if this doesn't work then repeat the process once more - i.e. turn off, wait until light becomes steady

My assumption is that there is some problem with bluetooth initialization in OSX in PBA mode and this procedure resets something.

Workaround 2 - reconfigure EFI login to display login as name/password


in addition to running the defaults commands, you also need to remove certain cache filenames ending in .efires from /System/Library/Caches/com.apple.corestorage/EFILoginLocalizations. Clearing the filename.efires cache files forces the system to update the FileVault 2 pre-boot login screen.

  • i.e. do this (or move to some backup location) - rm /System/Library/Caches/com.apple.corestorage/EFILoginLocalizations/*.efires

  • shutdown the computer

  • start the computer -> you should get login window as "[username]/password" - where you don't need mouse but keyboard is enough

Additional note:

In console you may check login properties like this:

defaults read /Library/Preferences/com.apple.loginwindow

or you may change any of them - with

default write ... 
share|improve this answer

With a wired keyboard you can use tab and arrow keys to select one of the account names, press enter and login. Then the mouse becomes active after login. I don't know how it works with a wireless keyboard.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.