Last login: Tue Feb 26 18:17:36 on ttys000
andrew-komarows-aspire-m5630:~ andy$ ioreg -lw0 -p IODeviceTree | grep -i EFI
    +-o efi  <class IOService, !registered, !matched, active, busy 0, retain 7>
    | |   "name" = <"efi">
    | |   "firmware-abi" = <"EFI32">
    | | | |     "IOMediaIcon" = {"CFBundleIdentifier"="com.apple.iokit.IOStorageFamily","IOBundleResourceFile"="Internal.icns"}
    | | | |     "IOMediaIcon" = {"CFBundleIdentifier"="com.apple.iokit.IOStorageFamily","IOBundleResourceFile"="Internal.icns"}
    | |   |     "IOMediaIcon" = {"CFBundleIdentifier"="com.apple.iokit.IODVDStorageFamily","IOBundleResourceFile"="DVD-R.icns"}
andrew-komarows-aspire-m5630:~ andy$