GPU installation failure

[tengpeng]

root@4258334d0ac4:/opt/caffe# ./examples/mnist/train_lenet.sh
I0206 03:58:44.393172    70 caffe.cpp:184] Using GPUs 0
modprobe: ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep file '/lib/modules/3.19.0-49-generic/modules.dep.bin'
F0206 03:58:44.400676    70 common.cpp:142] Check failed: error == cudaSuccess (38 vs. 0)  no CUDA-capable device is detected
*** Check failure stack trace: ***
    @     0x7fdf188acb8d  google::LogMessage::Fail()
    @     0x7fdf188aec8f  google::LogMessage::SendToLog()
    @     0x7fdf188ac77c  google::LogMessage::Flush()
    @     0x7fdf188af52d  google::LogMessageFatal::~LogMessageFatal()
    @     0x7fdf18e92e17  caffe::Caffe::SetDevice()
    @           0x409f59  train()
    @           0x405fbb  main
    @     0x7fdf17ddfec5  (unknown)
    @           0x406585  (unknown)
Aborted (core dumped)

root@4258334d0ac4:/opt/caffe# nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2014 NVIDIA Corporation
Built on Thu_Jul_17_21:41:27_CDT_2014
Cuda compilation tools, release 6.5, V6.5.12

lspci | grep -i nvidia
01:00.0 VGA compatible controller: NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2)
01:00.1 Audio device: NVIDIA Corporation Device 0fbc (rev a1)

[tleyden]

Can you add steps to repro?