diff --git a/centos-mirror-tools/dl_lower_layer_rpms.sh b/centos-mirror-tools/dl_lower_layer_rpms.sh
index 71a92b68..af353011 100755
--- a/centos-mirror-tools/dl_lower_layer_rpms.sh
+++ b/centos-mirror-tools/dl_lower_layer_rpms.sh
@@ -202,19 +202,24 @@ number_of_cpus () {
     /usr/bin/nproc
 }
 
+# FIXME: curl would work better here, but it doesn't support recursive downloads.
+#
+# Wget corrupts files in some cases:
+# - if the download stalls half-way and --tries is set to > 1, and the web
+#   server doesn't support the Range header with the upper limit omitted,
+#   (eg Range: bytes=18671712-) wget returns success (0) and leaves a partial
+#   file behind
+# - if download fails half-way, or wget is interrupted, wget returns
+#   non-zero, but may leave a partial file behind. This is to be expected,
+#   but we can't easily tell which files were downloaded fully in this case.
+#
+# See https://bugs.launchpad.net/starlingx/+bug/1950017
 get_remote_dir () {
     local url="${1}"
     local dest_dir="${2}"
     mkdir -p "${dest_dir}" || return 1
     \rm "${dest_dir}/"index.html*
-    wget  -c -N --recursive --no-parent --no-host-directories --no-directories --directory-prefix="${dest_dir}" "${url}/"
-}
-
-get_remote_file () {
-    local url="${1}"
-    local dest_dir="${2}"
-    mkdir -p "${dest_dir}" || return 1
-    wget  -c -N --no-parent --no-host-directories --no-directories --directory-prefix="${dest_dir}" "${url}"
+    wget -c -N --timeout 15 --recursive --no-parent --no-host-directories --no-directories --directory-prefix="${dest_dir}" "${url}/"
 }
 
 get_remote_file_overwrite () {
@@ -226,7 +231,7 @@ get_remote_file_overwrite () {
     if [ -f "${dest_file}" ]; then
         \rm "${dest_file}"
     fi
-    wget  -c -N --no-parent --no-host-directories --no-directories --directory-prefix="${dest_dir}" "${url}"
+    download_file --timestamps "$url" "$dest_file"
 }
 
 clean_repodata () {
diff --git a/centos-mirror-tools/dl_other_from_centos_repo.sh b/centos-mirror-tools/dl_other_from_centos_repo.sh
index d16e7dc4..46074cc1 100755
--- a/centos-mirror-tools/dl_other_from_centos_repo.sh
+++ b/centos-mirror-tools/dl_other_from_centos_repo.sh
@@ -11,6 +11,7 @@
 DL_OTHER_FROM_CENTOS_REPO_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}" )" )"
 
 source $DL_OTHER_FROM_CENTOS_REPO_DIR/url_utils.sh
+source $DL_OTHER_FROM_CENTOS_REPO_DIR/utils.sh
 
 usage () {
     echo "$0 [-D <distro>] [-s|-S|-u|-U] [-h] <other_download_list.ini> <save_path> [<force_update>]"
@@ -144,7 +145,7 @@ for ff in $all; do
 
             echo "remote path: $url_prefix/$_name"
             echo "local path: $save_path/$_name"
-            if wget $url_prefix/$_name; then
+            if download_file $url_prefix/$_name; then
                 file_name=`basename $_name`
                 sub_path=`dirname $_name`
                 if [ -e "./$file_name" ]; then
diff --git a/centos-mirror-tools/dl_rpms.sh b/centos-mirror-tools/dl_rpms.sh
index a88446aa..f6672951 100755
--- a/centos-mirror-tools/dl_rpms.sh
+++ b/centos-mirror-tools/dl_rpms.sh
@@ -345,6 +345,8 @@ download_worker () {
                 break
             else
                 echo "Warning: $rpm_name not found"
+                SFILE="$(get_rpm_level_name $rpm_name $lvl)"
+                \rm -f "$SFILE"
             fi
         done
 
diff --git a/centos-mirror-tools/dl_tarball.sh b/centos-mirror-tools/dl_tarball.sh
index d19c0d1e..99843478 100755
--- a/centos-mirror-tools/dl_tarball.sh
+++ b/centos-mirror-tools/dl_tarball.sh
@@ -144,7 +144,7 @@ is_tarball() {
     return $FOUND
 }
 
-# Download function using wget command
+# Download function using curl or similar command
 
 download_package() {
     local tarball_name="$1"
@@ -169,11 +169,11 @@ download_package() {
                 ;;
         esac
 
-        wget --spider "$url"
+        url_exists "$url"
         if [ $? != 0 ]; then
             echo "Warning: '$url' is broken"
         else
-            wget -q -t 5 --wait=15 -O "$tarball_name" "$url"
+            download_file --quiet "$url" "$tarball_name"
             if [ $? -eq 0 ]; then
                 if is_tarball "$tarball_name"; then
                     echo "Ok: $download_path"
@@ -293,7 +293,7 @@ for line in $(cat $tarball_file); do
             rm -rf $directory_name
             popd > /dev/null   # pushd $directory_name
         elif [[ "$tarball_name" = 'chartmuseum-v0.12.0-amd64' ]]; then
-            wget -q -t 5 --wait=15 -O "$tarball_name" "$tarball_url"
+            download_file --quiet "$tarball_url" "$tarball_name"
             if [ $? -ne 0 ]; then
                 error_count=$((error_count + 1))
                 popd > /dev/null   # pushd $output_tarball
@@ -301,7 +301,7 @@ for line in $(cat $tarball_file); do
             fi
         elif [[ "$tarball_name" = 'OPAE_1.3.7-5_el7.zip' ]]; then
             srpm_path="${directory_name}/source_code/"
-            wget -q -t 5 --wait=15 -O "$tarball_name" "$tarball_url"
+            download_file --quiet "$tarball_url" "$tarball_name"
             if [ $? -ne 0 ]; then
                 error_count=$((error_count + 1))
                 popd > /dev/null   # pushd $output_tarball
@@ -450,7 +450,7 @@ for line in $(cat $tarball_file); do
 
             src_rpm_name="$(echo "$tarball_url" | rev | cut -d/ -f1 | rev)"
 
-            wget -q -t 5 --wait=15 -O "$src_rpm_name" "$tarball_url"
+            download_file --quiet "$tarball_url" "$src_rpm_name"
             if [ $? -eq 0 ]; then
                 rpm2cpio "$src_rpm_name" | cpio --quiet -i "$tarball_name"
                 mv "$tarball_name" ..
@@ -486,9 +486,8 @@ for line in $(cat $tarball_file); do
                 ;;
         esac
 
-        download_cmd="wget -q -t 5 --wait=15 $url -O $download_path"
-
-        if $download_cmd ; then
+        download_file --quiet "$url" "$download_path"
+        if [[ $? -eq 0 ]] ; then
             if ! is_tarball "$download_path"; then
                 echo "Warning: file from $url is not a tarball."
                 \rm "$download_path"
diff --git a/centos-mirror-tools/download_mirror.sh b/centos-mirror-tools/download_mirror.sh
index 407011b9..60f8291d 100755
--- a/centos-mirror-tools/download_mirror.sh
+++ b/centos-mirror-tools/download_mirror.sh
@@ -539,7 +539,7 @@ else
 fi
 
 
-#download RPMs/SRPMs from 3rd_party websites (not CentOS repos) by "wget"
+#download RPMs/SRPMs from 3rd_party websites (not CentOS repos) using curl
 echo "step #2: start downloading RPMs/SRPMs from 3rd-party websites..."
 list=${rpms_from_3rd_parties}
 level=L1
diff --git a/centos-mirror-tools/make_stx_mirror_yum_conf.sh b/centos-mirror-tools/make_stx_mirror_yum_conf.sh
index 5ea18964..63762427 100755
--- a/centos-mirror-tools/make_stx_mirror_yum_conf.sh
+++ b/centos-mirror-tools/make_stx_mirror_yum_conf.sh
@@ -12,7 +12,7 @@
 
 MAKE_STX_MIRROR_YUM_CONF_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}" )" )"
 
-source "$MAKE_STX_MIRROR_YUM_CONF_DIR/url_utils.sh"
+source "$MAKE_STX_MIRROR_YUM_CONF_DIR/utils.sh" || exit 1
 
 DISTRO="centos"
 SUDO=sudo
@@ -252,7 +252,7 @@ for REPO in $(find "$CENGN_REPOS_DIR" -type f -name '*repo'); do
         CENGN_URL="$(url_to_stx_mirror_url "$URL" "$DISTRO")"
 
         # Test CENGN url
-        wget -q --spider $CENGN_URL
+        url_exists --quiet "$CENGN_URL"
         if [ $? -eq 0 ]; then
             # OK, make substitution
             sed "s#^baseurl=$URL\$#baseurl=$CENGN_URL#" -i "$REPO"
diff --git a/centos-mirror-tools/starlingx_add_pkgs.sh b/centos-mirror-tools/starlingx_add_pkgs.sh
index fb792316..852cf2fe 100755
--- a/centos-mirror-tools/starlingx_add_pkgs.sh
+++ b/centos-mirror-tools/starlingx_add_pkgs.sh
@@ -86,7 +86,8 @@ fi
 
 STARLINGX_ADD_PKGS_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}" )" )"
 
-source $STARLINGX_ADD_PKGS_DIR/../toCOPY/lst_utils.sh
+source $STARLINGX_ADD_PKGS_DIR/../toCOPY/lst_utils.sh || exit 1
+source $STARLINGX_ADD_PKGS_DIR/utils.sh || exit 1
 
 STXTOOLS=${MY_REPO_ROOT_DIR}/stx-tools
 
@@ -332,7 +333,7 @@ function download_pkg {
 
     echo "Downloading $url"
     rpm_path=$LOCALREPO_PATH/$arch/$(basename $relativepath)
-    wget -q -O $rpm_path $url
+    download_file --quiet "$url" "$rpm_path"
 
     if [ $? -ne 0 ]; then
         echo "Failed to download $url" >&2
diff --git a/centos-mirror-tools/stx_mirror_scripts/dl_utils.sh b/centos-mirror-tools/stx_mirror_scripts/dl_utils.sh
index afbbe75b..7e494d6f 100644
--- a/centos-mirror-tools/stx_mirror_scripts/dl_utils.sh
+++ b/centos-mirror-tools/stx_mirror_scripts/dl_utils.sh
@@ -8,12 +8,12 @@
 
 DL_UTILS_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}" )" )"
 
-if [ -f "$DL_UTILS_DIR/url_utils.sh" ]; then
-    source "$DL_UTILS_DIR/url_utils.sh"
-elif [ -f "$DL_UTILS_DIR/../url_utils.sh" ]; then
-    source "$DL_UTILS_DIR/../url_utils.sh"
+if [ -f "$DL_UTILS_DIR/utils.sh" ]; then
+    source "$DL_UTILS_DIR/utils.sh"
+elif [ -f "$DL_UTILS_DIR/../utils.sh" ]; then
+    source "$DL_UTILS_DIR/../utils.sh"
 else
-    echo "Error: Can't find 'url_utils.sh'"
+    echo "Error: Can't find 'utils.sh'"
     exit 1
 fi
 
@@ -257,13 +257,15 @@ dl_file_from_url () {
                 fi
             fi
 
-            CMD="wget '$URL' --tries=5 --wait=15 --output-document='$DOWNLOAD_PATH'"
+            CMD="$(get_download_file_command $URL $DOWNLOAD_PATH.dl_part)"
             echo "$CMD"
             eval $CMD
             if [ $? -ne 0 ]; then
+                \rm -f "$DOWNLOAD_PATH.dl_part"
                 echo "Error: $CMD"
                 return 1
             fi
+            \mv -fT "$DOWNLOAD_PATH.dl_part" "$DOWNLOAD_PATH"
             ;;
         *)
             echo "Error: Unknown protocol '$PROTOCOL' for url '$URL'"
diff --git a/centos-mirror-tools/utils.sh b/centos-mirror-tools/utils.sh
index a9a7faf6..0af80de3 100644
--- a/centos-mirror-tools/utils.sh
+++ b/centos-mirror-tools/utils.sh
@@ -6,7 +6,9 @@
 
 UTILS_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}" )" )"
 
-source $UTILS_DIR/url_utils.sh
+: ${_CURL_OPTS="--fail --location --connect-timeout 15 --speed-time 15 --speed-limit 1 --retry 5"}
+
+source $UTILS_DIR/url_utils.sh || exit 1
 
 get_yum_command() {
     local _file=$1
@@ -26,17 +28,77 @@ get_yum_command() {
     echo "${SUDO} yumdownloader -q -C ${YUMCONFOPT} ${RELEASEVER} $yumdownloader_extra_opts $rpm_name"
 }
 
-get_wget_command() {
+# Usage: get_download_file_command [--quiet] [--timestamps] URL [OUTPUT_FILE]
+get_download_file_command() {
+    local _opts="$_CURL_OPTS"
+    while true ; do
+        case "$1" in
+            --quiet)      _opts+=" --silent --show-error" ;;
+            --timestamps) _opts+=" --remote-time" ;;
+            -*)
+                echo >&2 "Unknown option $1"
+                return 1
+                ;;
+            *)
+                break
+        esac
+        shift
+    done
+
     local _name="$1"
     local _ret=""
-    if [[ "$_name" == http?(s)://* ]]; then
-        _ret="wget -q $_name"
+    if [[ $# -gt 1 ]]; then
+        _opts+=" -o $2"
     else
-        _ret="wget -q $(koji_url $_name)"
+        _opts+=" -O"
+    fi
+    if [[ "$_name" == http?(s)://* ]]; then
+        _ret="curl $_opts $_name"
+    else
+        _ret="curl $_opts $(koji_url $_name)"
     fi
     echo "$_ret"
 }
 
+# Usage: download_file [--quiet] [--timestamps] URL [OUTPUT_FILE]
+download_file() {
+    local _opts="$_CURL_OPTS"
+    while true ; do
+        case "$1" in
+            --quiet)      _opts+=" --silent --show-error" ;;
+            --timestamps) _opts+=" --remote-time" ;;
+            -*)
+                echo >&2 "Unknown option $1"
+                return 1
+                ;;
+            *)
+                break
+        esac
+        shift
+    done
+    if [[ "$#" -gt 1 ]] ; then
+        local _dest_file="$2"
+    else
+        local _dest_file="$(basename "$1")"
+    fi
+    if curl $_opts -o "${_dest_file}.dl_part" "$1" ; then
+        \mv -fT "${_dest_file}.dl_part" "${_dest_file}"
+        return 0
+    fi
+    \rm -f "${_dest_file}.dl_part"
+    return 1
+}
+
+# Usage: url_exists [--quiet] URL
+url_exists() {
+    local _opts
+    if [[ "$1" == "--quiet" ]] ; then
+        _opts+=" --quiet"
+        shift
+    fi
+    wget $_opts --spider "$1"
+}
+
 get_rpm_level_name() {
     local _rpm_name=$1
     local _level=$2
@@ -166,20 +228,20 @@ get_download_cmd() {
     local ff="$1"
     local _level="$2"
 
-    # Decide if the list will be downloaded using yumdownloader or wget
+    # Decide if the list will be downloaded using yumdownloader or curl
     if [[ $ff != *"#"* ]]; then
         rpm_name=$ff
         if [ $_level == "K1" ]; then
-            download_cmd="$(get_wget_command $rpm_name)"
+            download_cmd="$(get_download_file_command --quiet $rpm_name)"
         else
             # yumdownloader with the appropriate flag for src, noarch or x86_64
             # download_cmd="${SUDOCMD} $(get_yum_command $rpm_name $_level)"
             download_cmd="$(get_yum_command $rpm_name $_level)"
         fi
     else
-        # Build wget command
+        # Build the download command
         rpm_url=$(get_url "$ff" "$_level")
-        download_cmd="$(get_wget_command $rpm_url)"
+        download_cmd="$(get_download_file_command --quiet $rpm_url)"
     fi
 
     echo "$download_cmd"
diff --git a/centos-mirror-tools/utils_tests.sh b/centos-mirror-tools/utils_tests.sh
index 1ffab382..f3c33b48 100644
--- a/centos-mirror-tools/utils_tests.sh
+++ b/centos-mirror-tools/utils_tests.sh
@@ -18,7 +18,7 @@ source utils.sh
 check_result() {
     local _res="$1"
     local _expect="$2"
-    if [ "$_res" != "$_expect" ]; then
+    if [[ "$_res" != $_expect ]]; then
         echo "Fail"
         echo "expected $_expect"
         echo "returned $_res"
@@ -27,14 +27,14 @@ check_result() {
     echo "Success"
 }
 
-# get_wget_command
+# get_download_file_command
 
-res=$(get_wget_command "https://libvirt.org/sources/python/libvirt-python-3.5.0-1.fc24.src.rpm")
-expect="wget -q https://libvirt.org/sources/python/libvirt-python-3.5.0-1.fc24.src.rpm"
+res=$(get_download_file_command "https://libvirt.org/sources/python/libvirt-python-3.5.0-1.fc24.src.rpm")
+expect="curl* https://libvirt.org/sources/python/libvirt-python-3.5.0-1.fc24.src.rpm"
 check_result "$res" "$expect"
 
-res=$(get_wget_command "python2-httpbin-0.5.0-6.el7.noarch.rpm")
-expect="wget -q https://kojipkgs.fedoraproject.org/packages/python2-httpbin/0.5.0/6.el7/noarch/python2-httpbin-0.5.0-6.el7.noarch.rpm"
+res=$(get_download_file_command --quiet "python2-httpbin-0.5.0-6.el7.noarch.rpm")
+expect="curl*--silent* https://kojipkgs.fedoraproject.org/packages/python2-httpbin/0.5.0/6.el7/noarch/python2-httpbin-0.5.0-6.el7.noarch.rpm"
 check_result "$res" "$expect"
 
 # get_url