Tuesday, November 29, 2011

Fix: CentOS 5.x hangs during VirtualBox install [Field Notes]

Technology Involved
  • Win7 Pro x64
  • VirtualBox 4.1.x
  • CentOS 5.x

When attempting to install a CentOS Guest VM from a VirtualBox Win7 x64 host, the installation appears to hang shortly after beginning.

The last line of text on the screen is:
NET: Registered protocol family 2
Per this thread (referencing an older version of VirtualBox but still relevant), the fix is as follows:
  • Go into the settings of the VM
  • Click the System section.
  • Check Enable IO APIC.
  • Save the settings.
When you start the install again, it will proceed normally.


  1. Thanks Sean. This post gave me a fast, easy fix for an issue I hadn't run into before.
    Best regards

    1. I'm glad you were able to find it useful! Thanks for taking the time to leave a comment; they're always appreciated.


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