diff --git a/Dockerfile b/Dockerfile
index 67949a5..91c86ba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM qemux/qemu-host:2.04 as builder
+FROM qemux/qemu-host:2.05 as builder
 
 #  FROM golang as builder
 #  WORKDIR /
diff --git a/src/install.sh b/src/install.sh
index ac74517..be2180e 100644
--- a/src/install.sh
+++ b/src/install.sh
@@ -132,9 +132,8 @@ if [ ! -s "$RDC" ]; then
   rm -f "$RD"
   rm -f "$RDC"
 
-  MSG="Downloading installer..."
-  PRG="Downloading installer ([P])..."
-  info "Install: $MSG" && html "$MSG"
+  MSG="Downloading installer"
+  info "Install: $MSG..." && html "$MSG..."
 
   SIZE=5394188
   POS="65627648-71021835"
@@ -142,12 +141,13 @@ if [ ! -s "$RDC" ]; then
   LOC="$DL/release/7.0.1/42218/DSM_VirtualDSM_42218.pat"
   [[ "${URL,,}" == *"_42218.pat" ]] && LOC="$URL"
 
-  /run/progress.sh "$RD" "$SIZE" "$PRG" &
+  /run/progress.sh "$RD" "$SIZE" "$MSG ([P])..." &
   { curl -r "$POS" -sfk --connect-timeout 10 -S -o "$RD" "$LOC"; rc=$?; } || :
 
   fKill "progress.sh"
 
   (( rc == 4 )) && error "Failed to download $LOC , network failure!" && exit 60
+  (( rc == 8 )) && error "Failed to download $LOC , server issued an error response!" && exit 60
 
   if (( rc != 0 )); then
     if (( rc != 22 )) && (( rc != 56 )); then
@@ -166,12 +166,13 @@ if [ ! -s "$RDC" ]; then
     rm -f "$RD"
     rm -f "$PAT"
 
-    html "$MSG"
-    /run/progress.sh "$PAT" "$SIZE" "$PRG" &
+    html "$MSG..."
+    /run/progress.sh "$PAT" "$SIZE" "$MSG ([P])..." &
     { wget "$LOC" -O "$PAT" -q --no-check-certificate --timeout=10 --show-progress "$PROGRESS"; rc=$?; } || :
 
     fKill "progress.sh"
     (( rc == 4 )) && error "Failed to download $LOC , network failure!" && exit 60
+    (( rc == 8 )) && error "Failed to download $LOC , server issued an error response!" && exit 60
     (( rc != 0 )) && error "Failed to download $LOC , reason: $rc" && exit 60
 
     tar --extract --file="$PAT" --directory="$(dirname "$RD")"/. "$(basename "$RD")"
@@ -224,9 +225,8 @@ rm -rf "$TMP" && mkdir -p "$TMP"
 
 info "Install: Downloading $BASE.pat..."
 
-MSG="Downloading DSM..."
-PRG="Downloading DSM ([P])..."
-html "$MSG"
+MSG="Downloading DSM"
+html "$MSG..."
 
 PAT="/$BASE.pat"
 rm -f "$PAT"
@@ -241,12 +241,13 @@ else
   [[ "${URL,,}" == *"_69057.pat" ]] && SIZE=363837333
   [[ "${URL,,}" == *"_42218.pat" ]] && SIZE=379637760
 
-  /run/progress.sh "$PAT" "$SIZE" "$PRG" &
+  /run/progress.sh "$PAT" "$SIZE" "$MSG ([P])..." &
 
   { wget "$URL" -O "$PAT" -q --no-check-certificate --timeout=10 --show-progress "$PROGRESS"; rc=$?; } || :
 
   fKill "progress.sh"
   (( rc == 4 )) && error "Failed to download $URL , network failure!" && exit 69
+  (( rc == 8 )) && error "Failed to download $URL , server issued an error response!" && exit 69
   (( rc != 0 )) && error "Failed to download $URL , reason: $rc" && exit 69
 
 fi
diff --git a/src/proc.sh b/src/proc.sh
index 37e3d6e..404aa24 100644
--- a/src/proc.sh
+++ b/src/proc.sh
@@ -50,7 +50,7 @@ fi
 
 if [[ "$KVM" != [Nn]* ]]; then
 
-  CPU_FEATURES="kvm=on,l3-cache=on"
+  CPU_FEATURES="kvm=on,l3-cache=on,+hypervisor"
   KVM_OPTS=",accel=kvm -enable-kvm -global kvm-pit.lost_tick_policy=discard"
 
   if ! grep -qw "sse4_2" <<< "$flags"; then
@@ -64,10 +64,30 @@ if [[ "$KVM" != [Nn]* ]]; then
     CPU_FEATURES="$CPU_FEATURES,migratable=no"
   fi
 
+  if grep -qw "svm" <<< "$flags"; then
+
+    # AMD processor
+
+    if grep -qw "tsc_scale" <<< "$flags"; then
+      CPU_FEATURES="$CPU_FEATURES,+invtsc"
+    fi
+
+  else
+
+    # Intel processor
+
+    vmx=$(sed -ne '/^vmx flags/s/^.*: //p' /proc/cpuinfo)
+
+    if grep -qw "tsc_scaling" <<< "$vmx"; then
+      CPU_FEATURES="$CPU_FEATURES,+invtsc"
+    fi
+
+  fi
+
 else
 
   KVM_OPTS=""
-  CPU_FEATURES="l3-cache=on"
+  CPU_FEATURES="l3-cache=on,+hypervisor"
 
   if [[ "$ARCH" == "amd64" ]]; then
     KVM_OPTS=" -accel tcg,thread=multi"