LG Optimus G fastboot not working Alright, I have an LG Optimus G that I'm playing around with and trying to install ubuntu on. I'm following this guide I've done everything up to the point where you enter this into the terminal:

$ adb reboot bootloader


Which just reboots the phone but not into the bootloader.

when I check for adb devices:

$ adb devices
devices attached 
LG-LS970-9c07c856   device


And when I run 

$ fastboot devices


I get nothing. Any idea how to fix this so that it will reboot into the bootloader?
try using 

adb reboot-bootloader


from the adb usage text


  adb reboot [bootloader|recovery] - reboots the device, optionally into the bootloader or recovery program
  adb reboot-bootloader - reboots the device into the bootloader