diff --git a/.travis.yml b/.travis.yml
index a5f28fa5d115..c8ba0b1e645b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,9 +17,7 @@ env:
   - TASK=cpp_test
   # run tests/python
   - TASK=python_test
-  #- TASK=r_test
-  - TASK=installation_packaged_test
-  - TASK=installation_source_test
+  - TASK=r_test
   # - TASK=julia JULIA_VER=0.4
   # - TASK=scala_test
 
@@ -80,6 +78,7 @@ addons:
 before_install:
   - export NVCC_PREFIX=${HOME}
   - source dmlc-core/scripts/travis/travis_setup_env.sh
+  - export PYTHONPATH=${PYTHONPATH}:${PWD}/python
   - export MAVEN_SKIP_RC=true
   - export MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=256m -XX:-UseGCOverheadLimit -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC"
 
diff --git a/docs/get_started/install.md b/docs/get_started/install.md
index 4930a59d615d..f81307833029 100644
--- a/docs/get_started/install.md
+++ b/docs/get_started/install.md
@@ -462,14 +462,14 @@ If not already installed, [download and install Xcode](https://developer.apple.c
 <br/>
 
 **Step 1**  Install prerequisites - Homebrew, python development tools.
-<!-- Pipe to /dev/null in case Homebrew or package was already installed to prevent failure -->
+
 ```bash
 # Install Homebrew
-$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" </dev/null
+$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
 $ export PATH=/usr/local/bin:/usr/local/sbin:$PATH
 
 # Install python development tools - python2.7, pip, python-setuptools
-$ brew list python &>/dev/null || brew install python
+$ brew install python
 ```
 
 **Step 2**  Install virtualenv for macOS.
@@ -523,14 +523,14 @@ Install *MXNet* with OpenBLAS acceleration.
 <br/>
 
 **Step 1**  Install prerequisites - Homebrew, python development tools.
-<!-- Pipe to /dev/null in case Homebrew or package was already installed to prevent failure -->
+
 ```bash
 # Install Homebrew
-$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" </dev/null
+$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
 $ export PATH=/usr/local/bin:/usr/local/sbin:$PATH
 
 # Install python development tools - python2.7, pip, python-setuptools
-$ brew list python &>/dev/null || brew install python
+$ brew install python
 ```
 
 **Step 2** Install MXNet with OpenBLAS acceleration.
diff --git a/tests/jenkins/run_test_installation_docs.sh b/tests/jenkins/run_test_installation_docs.sh
index 09ebf28f7f67..921c89a16605 100755
--- a/tests/jenkins/run_test_installation_docs.sh
+++ b/tests/jenkins/run_test_installation_docs.sh
@@ -75,7 +75,7 @@ function retrieve_closest_index() {
         cur_num=${arr[${i}]}
         if [[ ${cur_num} -eq ${number} || ${cur_num} -gt ${number} ]]
         then
-            echo "${i}"
+            echo ${i}
             return
         fi
     done
@@ -124,7 +124,7 @@ function retrieve_commands() {
             fi
         done
     done
-    echo "${commands}"
+    echo ${commands}
 }
 
 # Sorts array of numbers.
@@ -139,32 +139,26 @@ function retrieve_commands() {
 function sort() {
     declare -a lineno_array=("${!1}")
     size=${#lineno_array[@]}
-    for((i=1;i<size;i++))
+    for (( i=1; i<=$(( $size-1)); i++ ))
     do
-       temp=${lineno_array[i]}
-       j=$((i-1))
-       while [ $temp -lt ${lineno_array[j]} ]
-       do
-          lineno_array[j+1]=${lineno_array[j]}
-          j=$(( $j-1 ))
-          if [ $j == -1 ]
-          then
-             break
-          fi
-       done
-       lineno_array[j+1]=$temp
+        j=$i
+        while (( ${j} > 0 && ${lineno_array[$j-1]} > ${lineno_array[$j]} )); do
+            x=${lineno_array[$j-1]}
+            lineno_array[$j-1]=${lineno_array[$j]}
+            lineno_array[$j]=$x
+            j=$j-1
+        done
     done
     printf "${lineno_array[*]}"
 }
 
-if (( $# < 2 )); then
+if (( $# < 1 )); then
     echo ""
-    echo "Usage: $(basename $0) FILE ENV"
+    echo "Usage: $(basename $0) FILE"
     echo ""
     exit 1
 fi
 FILE=${1}
-TASK=${2}
 
 # get all line numbers with "```" signifying start or end of source section and put them in an array
 SOURCE_REGEX="\`\`\`"
@@ -176,10 +170,6 @@ PIP_LINENO_ALL=($(grep -n "<div class=\"pip\">" "${FILE}" | cut -d : -f 1))
 DOCKER_LINENO_ALL=($(grep -n "<div class=\"docker\">" "${FILE}" | cut -d : -f 1))
 BUILDFROMSOURCE_LINENO_ALL=($(grep -n "<div class=\"build-from-source\">" "${FILE}" | cut -d : -f 1))
 
-# validation instructions
-PYTHON_GPU_VALIDATION="import mxnet as mx; a = mx.nd.ones((2, 3), mx.gpu()); b = a * 2 + 1; b.asnumpy()"
-PYTHON_CPU_VALIDATION="import mxnet as mx; a = mx.nd.ones((2, 3)); b = a * 2 + 1; b.asnumpy()"
-
 # Given two line numbers, collects instruction sets for installing via Virtualenv, Pip, Docker, and source within the
 # two lines assuming there is one of each.
 #
@@ -242,139 +232,74 @@ function set_instruction_set() {
         ${sorted_indexes[$end_buildfromsource_command_index]})
 }
 
-if [[ "${TASK}" == "linux" ]]
-then
-
-    ########################LINUX-PYTHON-CPU############################
-    echo
-    echo
-    echo "### Testing LINUX-PYTHON-CPU ###"
-    echo
-    # range of all lines inside Linux-Python-CPU instructions
-    LINUX_PYTHON_CPU_START_LINENO=$(grep -n "START - Linux Python CPU Installation Instructions" "${FILE}" | cut -d : -f 1)
-    LINUX_PYTHON_CPU_END_LINENO=$(grep -n "END - Linux Python CPU Installation Instructions" "${FILE}" | cut -d : -f 1)
-
-    set_instruction_set ${LINUX_PYTHON_CPU_START_LINENO} ${LINUX_PYTHON_CPU_END_LINENO}
-
-    virtualenv_commands="${virtualenv_commands} python -c \"${PYTHON_CPU_VALIDATION}\""
-    echo
-    echo "### Testing Virtualenv ###"
-    echo "${virtualenv_commands}"
-    echo
-    docker run --rm ubuntu:14.04 bash -c "${virtualenv_commands}"
-
-    pip_commands="${pip_commands} python -c \"${PYTHON_CPU_VALIDATION}\""
-    echo
-    echo "### Testing Pip ###"
-    echo "${pip_commands}"
-    echo
-    docker run --rm ubuntu:14.04 bash -c "${pip_commands}"
-
-    docker_img=$(echo "$docker_commands" | sed 's/.*docker pull \(.*\)/\1/' | sed 's/;.*//')
-    docker_commands="${docker_commands} docker run ${docker_img} python -c \"${PYTHON_CPU_VALIDATION}\""
-    echo
-    echo "### Testing Docker ###"
-    echo "${docker_commands}"
-    echo
-    eval "${docker_commands}"
-
-    buildfromsource_commands="${buildfromsource_commands} python -c \"${PYTHON_CPU_VALIDATION}\""
-    echo
-    echo "### Testing Build From Source ###"
-    echo "${buildfromsource_commands}"
-    echo
-    docker run --rm ubuntu:14.04 bash -c "${buildfromsource_commands}"
-
-    #########################LINUX-PYTHON-GPU###########################
-
-    echo
-    echo
-    echo "### Testing LINUX-PYTHON-GPU ###"
-    echo
-    # range of all lines inside Linux-Python-GPU instructions
-    LINUX_PYTHON_GPU_START_LINENO=$(grep -n "START - Linux Python GPU Installation Instructions" "${FILE}" | cut -d : -f 1)
-    LINUX_PYTHON_GPU_END_LINENO=$(grep -n "END - Linux Python GPU Installation Instructions" "${FILE}" | cut -d : -f 1)
-
-    set_instruction_set ${LINUX_PYTHON_GPU_START_LINENO} ${LINUX_PYTHON_GPU_END_LINENO}
-
-    virtualenv_commands="${virtualenv_commands} python -c \"${PYTHON_GPU_VALIDATION}\""
-    echo
-    echo "### Testing Virtualenv ###"
-    echo "${virtualenv_commands}"
-    echo
-    nvidia-docker run --rm nvidia/cuda:8.0-cudnn5-devel-ubuntu14.04 bash -c "${virtualenv_commands}"
-
-    pip_commands="${pip_commands} python -c \"${PYTHON_GPU_VALIDATION}\""
-    echo
-    echo "### Testing Pip ###"
-    echo "${pip_commands}"
-    echo
-    nvidia-docker run --rm nvidia/cuda:8.0-cudnn5-devel-ubuntu14.04 bash -c "${pip_commands}"
-
-    docker_img=$(echo "$docker_commands" | sed 's/.*docker pull \(.*\)/\1/' | sed 's/;.*//')
-    docker_commands="${docker_commands} nvidia-docker run ${docker_img} python -c \"${PYTHON_GPU_VALIDATION}\""
-    echo
-    echo "### Testing Docker ###"
-    echo "${docker_commands}"
-    echo
-    eval "${docker_commands}"
-
-    buildfromsource_commands="${buildfromsource_commands} python -c \"${PYTHON_GPU_VALIDATION}\""
-    echo
-    echo "### Testing Build From Source ###"
-    echo "${buildfromsource_commands}"
-    echo
-    nvidia-docker run --rm nvidia/cuda:8.0-cudnn5-devel-ubuntu14.04 bash -c "${buildfromsource_commands}"
-
-else
-
-    #########################MACOS-PYTHON-CPU###########################
-    # Currently this section is invoked in ../travis/run_test.sh so this test can run on MacOS.
-    echo
-    echo
-    echo "### Testing MACOS-PYTHON-CPU ###"
-    echo
-    # range of all lines inside MacOS-Python-CPU instructions
-    MAC_PYTHON_CPU_START_LINENO=$(grep -n "START - MacOS Python CPU Installation Instructions" "${FILE}" | cut -d : -f 1)
-    MAC_PYTHON_CPU_END_LINENO=$(grep -n "END - Mac OS Python CPU Installation Instructions" "${FILE}" | cut -d : -f 1)
-
-    set_instruction_set ${MAC_PYTHON_CPU_START_LINENO} ${MAC_PYTHON_CPU_END_LINENO}
-
-    if [[ "${TASK}" == "installation_packaged_test" ]]
-    then
-        virtualenv_commands="${virtualenv_commands} python -c \"import sys; print hasattr(sys, 'real_prefix'); ${PYTHON_CPU_VALIDATION}\"; deactivate;"
-        echo
-        echo "### Testing Virtualenv ###"
-        echo "${virtualenv_commands}"
-        echo
-        eval "${virtualenv_commands}"
-
-        pip_commands="${pip_commands} python -c \"${PYTHON_CPU_VALIDATION}\""
-        echo
-        echo "### Testing Pip ###"
-        echo "${pip_commands}"
-        echo
-        eval "${pip_commands}"
-
-        exit
-    fi
-
-    ###COMMENTING THIS OUT FOR NOW AS TRAVIS DOES NOT SUPPORT DOCKER FOR MAC
-#    echo
-#    echo "### Testing Docker ###"
-#    echo "${docker_commands}"
-#    echo
-#    eval ${docker_commands}
 
-    if [[ "${TASK}" == "installation_source_test" ]]
-    then
-        buildfromsource_commands="${buildfromsource_commands} python -c \"${PYTHON_CPU_VALIDATION}\""
-        echo
-        echo "### Testing Build From Source ###"
-        echo "${buildfromsource_commands}"
-        echo
-        eval "${buildfromsource_commands}"
-
-        exit
-    fi
-fi
+########################LINUX-PYTHON-CPU############################
+echo
+echo
+echo "### Testing LINUX-PYTHON-CPU ###"
+echo
+# range of all lines inside Linux-Python-CPU instructions
+LINUX_PYTHON_CPU_START_LINENO=$(grep -n "START - Linux Python CPU Installation Instructions" "${FILE}" | cut -d : -f 1)
+LINUX_PYTHON_CPU_END_LINENO=$(grep -n "END - Linux Python CPU Installation Instructions" "${FILE}" | cut -d : -f 1)
+
+set_instruction_set ${LINUX_PYTHON_CPU_START_LINENO} ${LINUX_PYTHON_CPU_END_LINENO}
+
+echo
+echo "### Testing Virtualenv ###"
+echo "${virtualenv_commands}"
+echo
+docker run --rm ubuntu:14.04 bash -c "${virtualenv_commands}"
+
+echo
+echo "### Testing Pip ###"
+echo "${pip_commands}"
+echo
+docker run --rm ubuntu:14.04 bash -c "${pip_commands}"
+
+echo
+echo "### Testing Docker ###"
+echo "${docker_commands}"
+echo
+eval ${docker_commands}
+
+echo
+echo "### Testing Build From Source ###"
+echo "${buildfromsource_commands}"
+echo
+docker run --rm ubuntu:14.04 bash -c "${buildfromsource_commands}"
+
+#########################LINUX-PYTHON-GPU###########################
+
+echo
+echo
+echo "### Testing LINUX-PYTHON-GPU ###"
+echo
+# range of all lines inside Linux-Python-GPU instructions
+LINUX_PYTHON_GPU_START_LINENO=$(grep -n "START - Linux Python GPU Installation Instructions" "${FILE}" | cut -d : -f 1)
+LINUX_PYTHON_GPU_END_LINENO=$(grep -n "END - Linux Python GPU Installation Instructions" "${FILE}" | cut -d : -f 1)
+
+set_instruction_set ${LINUX_PYTHON_GPU_START_LINENO} ${LINUX_PYTHON_GPU_END_LINENO}
+
+echo
+echo "### Testing Virtualenv ###"
+echo "${virtualenv_commands}"
+echo
+nvidia-docker run --rm nvidia/cuda:7.5-cudnn5-devel bash -c "${virtualenv_commands}"
+
+echo
+echo "### Testing Pip ###"
+echo "${pip_commands}"
+echo
+nvidia-docker run --rm nvidia/cuda:7.5-cudnn5-devel bash -c "${pip_commands}"
+
+echo
+echo "### Testing Docker ###"
+echo "${docker_commands}"
+echo
+eval ${docker_commands}
+
+echo
+echo "### Testing Build From Source ###"
+echo "${buildfromsource_commands}"
+echo
+nvidia-docker run --rm nvidia/cuda:7.5-cudnn5-devel bash -c "${buildfromsource_commands}"
diff --git a/tests/travis/run_test.sh b/tests/travis/run_test.sh
index 540d013f1f16..cff4196b6043 100755
--- a/tests/travis/run_test.sh
+++ b/tests/travis/run_test.sh
@@ -5,22 +5,6 @@ then
   exit 0
 fi
 
-if [[ ${TASK} == *"installation"* ]]; then
-    git remote add main https://github.com/dmlc/mxnet.git
-    git fetch main master
-    echo "File changes compared to origin/master:"
-    echo "**********************************"
-    git diff --name-only remotes/main/master
-    echo "**********************************"
-
-    if [[ ! $(git diff --name-only remotes/main/master | grep install.md) ]]; then
-        echo "No changes to install.md. Skipping installation tasks..."
-        exit 0
-    fi
-    ./tests/jenkins/run_test_installation_docs.sh docs/get_started/install.md ${TASK}
-    exit $?
-fi
-
 if [ ${TASK} == "lint" ]; then
     make lint || exit -1
     echo "Check documentations of c++ code..."
@@ -109,7 +93,6 @@ if [ ${TASK} == "r_test" ]; then
 fi
 
 if [ ${TASK} == "python_test" ]; then
-    export PYTHONPATH=${PYTHONPATH}:${PWD}/python
     make all || exit -1
     # use cached dir for storing data
     rm -rf ${PWD}/data
diff --git a/tests/travis/setup.sh b/tests/travis/setup.sh
index e1027b0db05e..ec071009bda5 100755
--- a/tests/travis/setup.sh
+++ b/tests/travis/setup.sh
@@ -5,7 +5,7 @@ then
   exit 0
 fi
 
-if [[ ${TRAVIS_OS_NAME} == "osx" && ${TASK} != *"installation"* ]]; then
+if [ ${TRAVIS_OS_NAME} == "osx" ]; then
     brew update
     brew tap homebrew/science
     brew install opencv