install of nvidia on debian strech hangs, need help

Hi,

I’ve stretch (9.1) on a system with a K80 and wanting to get nvidia driver installed.

Following

https://wiki.debian.org/NvidiaGraphicsDrivers#Debian_9_.22Stretch.22

I first tried the version 390.48, but that failed with:

Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
nvidia-driver : PreDepends: nvidia-installer-cleanup but it is not installable
                 PreDepends: nvidia-legacy-check (>= 343) but it is not going to be installed
                 Depends: nvidia-driver-libs (= 390.67-2~bpo9+1) but it is not going to be installed or
                          nvidia-driver-libs-nonglvnd (= 390.67-2~bpo9+1) but it is not going to be installed
                 Depends: nvidia-driver-bin (= 390.67-2~bpo9+1) but it is not going to be installed
                 Depends: xserver-xorg-video-nvidia (= 390.67-2~bpo9+1) but it is not going to be installed
                 Depends: nvidia-vdpau-driver (= 390.67-2~bpo9+1) but it is not going to be installed
                 Depends: nvidia-alternative (= 390.67-2~bpo9+1) but it is not going to be installed
                 Depends: nvidia-kernel-dkms (= 390.67-2~bpo9+1) but it is not going to be installed or
                          nvidia-kernel-390.67
                 Depends: nvidia-support but it is not installable
                 Recommends: nvidia-settings (>= 390) but it is not going to be installed
                 Recommends: nvidia-persistenced but it is not going to be installed
E: Unable to correct problems, you have held broken packages.


So I changed over to try 375.66, and that goes further, but hangs after I answer this prompt at the bottom, been sitting there for over an hour doing nothing…

sudo apt-get install linux-headers-$(uname -r|sed 's/[^-]*-[^-]*-//') nvidia-driver
Reading package lists... Done
Building dependency tree
Reading state information... Done
linux-headers-amd64 is already the newest version (4.9+80+deb9u4).
The following additional packages will be installed:
  glx-alternative-nvidia glx-diversions libegl-nvidia0 libegl1-glvnd-nvidia libgl1-glvnd-nvidia-glx libgl1-nvidia-glvnd-glx
  libgldispatch0-nvidia libgles-nvidia1 libgles-nvidia2 libgles1-glvnd-nvidia libgles2-glvnd-nvidia libglx-nvidia0
  libglx0-glvnd-nvidia libjansson4 libnvidia-cfg1 libnvidia-eglcore libnvidia-glcore libnvidia-ml1 libopengl0-glvnd-nvidia
  libvulkan1 libxnvctrl0 nvidia-alternative nvidia-driver-bin nvidia-driver-libs nvidia-egl-common nvidia-egl-icd
  nvidia-installer-cleanup nvidia-kernel-common nvidia-kernel-dkms nvidia-kernel-support nvidia-legacy-check nvidia-modprobe
  nvidia-persistenced nvidia-settings nvidia-support nvidia-vdpau-driver nvidia-vulkan-common nvidia-vulkan-icd
  xserver-xorg-video-nvidia
Suggested packages:
  vulkan-utils
Recommended packages:
  nvidia-driver-libs-i386
The following NEW packages will be installed:
  glx-alternative-nvidia glx-diversions libegl-nvidia0 libegl1-glvnd-nvidia libgl1-glvnd-nvidia-glx libgl1-nvidia-glvnd-glx
  libgldispatch0-nvidia libgles-nvidia1 libgles-nvidia2 libgles1-glvnd-nvidia libgles2-glvnd-nvidia libglx-nvidia0
  libglx0-glvnd-nvidia libjansson4 libnvidia-cfg1 libnvidia-eglcore libnvidia-glcore libnvidia-ml1 libopengl0-glvnd-nvidia
  libvulkan1 libxnvctrl0 nvidia-alternative nvidia-driver nvidia-driver-bin nvidia-driver-libs nvidia-egl-common nvidia-egl-icd
  nvidia-installer-cleanup nvidia-kernel-common nvidia-kernel-dkms nvidia-kernel-support nvidia-legacy-check nvidia-modprobe
  nvidia-persistenced nvidia-settings nvidia-support nvidia-vdpau-driver nvidia-vulkan-common nvidia-vulkan-icd
  xserver-xorg-video-nvidia
0 upgraded, 40 newly installed, 0 to remove and 263 not upgraded.
Need to get 0 B/30.3 MB of archives.
After this operation, 121 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Extracting templates from packages: 100%
Preconfiguring packages ...
Selecting previously unselected package nvidia-installer-cleanup.
(Reading database ... 274435 files and directories currently installed.)
Preparing to unpack .../nvidia-installer-cleanup_20151021+4_amd64.deb ...
Unpacking nvidia-installer-cleanup (20151021+4) ...
Setting up nvidia-installer-cleanup (20151021+4) ...

WARNING: The '--no-runlevel-check' option is deprecated:  nvidia-installer will ignore this option.


Welcome to the NVIDIA Software Installer for Unix/Linux

Detected 32 CPUs online; setting concurrency level to 32.

If you plan to no longer use the NVIDIA driver, you should make sure that no X screens are configured to use the NVIDIA X driver
in your X configuration file. If you used nvidia-xconfig to configure X, it may have created a backup of your original
configuration. Would you like to run `nvidia-xconfig --restore-original-backup` to attempt restoration of the original X
configuration file?
  [default: (N)o]: N



Could use some help.

Thanks!

Robert Welsh