Hi, I've encountered this same bug, hang on "select and install software - running dpkg - at 12%"
VT 4 last line shows "in-target: Processing triggers for libc-bin" Tried with following UNOFFICIAL NON-FREE (becouse realtek firmware request) images on USB: http://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/8.2.0/amd64/iso-cd/firmware-8.2.0-amd64-netinst.iso2015-09-06 13:12 265M http://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/stretch_di_alpha4/amd64/iso-cd/firmware-stretch-DI-alpha4-amd64-netinst.iso 2015-10-26 00:36 268M http://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/weekly-builds/amd64/iso-cd/firmware-testing-amd64-netinst.iso 2015-11-30 06:59 281M HW is Lenovo B50-10 laptop with realtek integrated lan/wlan