Comment 1 for bug 2040190

I reproduced the issue on some Apple hardware I had access to yesterday. What is interesting so far is that while the command `efibootmgr` fails:

# efibootmgr
EFI variables are not supported on this system.

It succeeds when specifying efivarfs for the LIBEFIVAR_OPS environment variable:

# LIBEFIVAR_OPS=efivarfs efibootmgr
BootCurrent: 0000
BootOrder: 0000,0080
Boot0000* ubuntu
Boot0080* Mac OS X
Boot0082*
BootFFFF*

This seems to indicate a failure in the efivarfs_probe function.