Why does Ubuntu 16.04 fail to restart properly after installation?

I attempted to install Ubuntu 16.04 on Virtualbox 5.0.18 on a Windows 7 x64 host. Every time the install completes and I click to restart the system, it freezes on:

piix4_smbus 0000:00:07.0: SMBus base address uninitialized - upgrade BIOS or use force_addr=0xaddr.

enter image description here

  • What has your research effort shown using Google? Questions on SU are expected to show some research effort on your part and should be included in your question. – Moab Apr 25 '16 at 21:12
  • I have done so and saw a bunch of unrelated issues. The solutions to the threads that did describe my issue recommended doing an unclean power off, which didn't seem right. – os2firefox Apr 26 '16 at 19:23
  • Its always better to show what you have tried or found searching, this way we do not waste your time giving comments or answers you have already tried of found. – Moab Apr 27 '16 at 0:12
  • I see, makes sense :) – os2firefox Apr 27 '16 at 21:00

Take a look here: https://askubuntu.com/questions/298290/smbus-bios-error-while-booting-ubuntu-in-virtualbox

There are several options that have worked for people.

I had exactly your scenario. After trying many things I did a reset from the VirtualBox menu and it booted. This was probably just luck.


Try and change the chipset in the settings, this worked for me some time ago when I had this error. Either the IDE controller chipset from PIIX4 -> ICH6 or the MB chipset from PIIX3 -> ICH9 or both. I always to use the newest emulated hardware.

As for why it happens, I cannot tell you.

  • 1
    How does one change the chipset precisely? You should provide specific details on how to do it. – Ramhound Apr 25 '16 at 19:55
  • I changed both the IDE controller to ICH6 and MB chipset to ICH9 and still get the same hang after clicking to reboot. – os2firefox Apr 26 '16 at 19:24

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