I'm using "debian-live-8.7.1-amd64-standard.iso" on a PPC-3060S Industrial Panel PC from Advantech. I have the same problem where the installation process stops at running dpkg - 12%. This behavior is the same on standard install and GUI install.
The BIOS is Aptio Setup Utility version 5.0.0.9 from American Megatrends. It has options in "Chipset->South Bridge": OS Selcetion is by default set to [Windows 7]. XHCI mode is by default set to [disable]. If I change OS Selection for [Linux], XHCI also changes for [Enabled]. Once these options are set the installer no longer stops at 12% Running dpkg and it completes successfully. I hope this helps.
