From fa295e460b777fd065831cac7f3304867aef61c0 Mon Sep 17 00:00:00 2001
From: Mikhail Timofeev <v-mitim@microsoft.com>
Date: Tue, 20 Oct 2020 16:04:35 +0300
Subject: [PATCH 01/12] add workaround with ip

---
 images/win/scripts/Installers/Install-VS.ps1 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/images/win/scripts/Installers/Install-VS.ps1 b/images/win/scripts/Installers/Install-VS.ps1
index 4c1ce9528..51fd9e7c1 100644
--- a/images/win/scripts/Installers/Install-VS.ps1
+++ b/images/win/scripts/Installers/Install-VS.ps1
@@ -3,6 +3,9 @@
 ##  Desc:  Install Visual Studio
 ################################################################################
 
+Copy-Item -Path "$env:windir\System32\drivers\etc\hosts" -Destination "$env:temp\hosts_backup"
+"68.232.34.200 download.visualstudio.microsoft.com" > "$env:windir\System32\drivers\etc\hosts"
+
 $toolset = Get-ToolsetContent
 $requiredComponents = $toolset.visualStudio.workloads | ForEach-Object { "--add $_" }
 $workLoads = @(
@@ -47,4 +50,5 @@ if (Test-IsWin19) {
 	Install-Binary -Url $sdkUrl -Name $sdkFileName -ArgumentList $argumentList
 }
 
-Invoke-PesterTests -TestFile "VisualStudio"
\ No newline at end of file
+Invoke-PesterTests -TestFile "VisualStudio"
+Move-Item -Path "$env:temp\hosts_backup" -Destination "$env:windir\System32\drivers\etc\hosts" -Force

From 188ab7840087af5ae95036ea8a856c5f9ab74062 Mon Sep 17 00:00:00 2001
From: Mikhail Timofeev <v-mitim@microsoft.com>
Date: Tue, 20 Oct 2020 18:32:11 +0300
Subject: [PATCH 02/12] change to c directory

---
 images/win/scripts/Installers/Install-VS.ps1 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/images/win/scripts/Installers/Install-VS.ps1 b/images/win/scripts/Installers/Install-VS.ps1
index 51fd9e7c1..7e4b2b763 100644
--- a/images/win/scripts/Installers/Install-VS.ps1
+++ b/images/win/scripts/Installers/Install-VS.ps1
@@ -3,7 +3,7 @@
 ##  Desc:  Install Visual Studio
 ################################################################################
 
-Copy-Item -Path "$env:windir\System32\drivers\etc\hosts" -Destination "$env:temp\hosts_backup"
+Copy-Item -Path "$env:windir\System32\drivers\etc\hosts" -Destination "C:\hosts_backup" -Verbose
 "68.232.34.200 download.visualstudio.microsoft.com" > "$env:windir\System32\drivers\etc\hosts"
 
 $toolset = Get-ToolsetContent
@@ -51,4 +51,4 @@ if (Test-IsWin19) {
 }
 
 Invoke-PesterTests -TestFile "VisualStudio"
-Move-Item -Path "$env:temp\hosts_backup" -Destination "$env:windir\System32\drivers\etc\hosts" -Force
+Move-Item -Path "C:\hosts_backup" -Destination "$env:windir\System32\drivers\etc\hosts" -Force -Verbose

From b6166576d18d550dcf98ea8ec55050ae5d9f8861 Mon Sep 17 00:00:00 2001
From: Mikhail Timofeev <v-mitim@microsoft.com>
Date: Thu, 22 Oct 2020 16:01:52 +0300
Subject: [PATCH 03/12] change default bundle to the latest one

---
 images/macos/toolsets/toolset-10.15.json | 2 +-
 images/macos/toolsets/toolset-11.0.json  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/images/macos/toolsets/toolset-10.15.json b/images/macos/toolsets/toolset-10.15.json
index d3c1866d4..fc0bf7983 100644
--- a/images/macos/toolsets/toolset-10.15.json
+++ b/images/macos/toolsets/toolset-10.15.json
@@ -19,7 +19,7 @@
         "android-versions": [
             "11.0.2.0", "10.3.1.4", "10.2.0.100", "10.1.3.7", "10.0.6.2"
         ],
-        "bundle-default": "6_12_0",
+        "bundle-default": "latest",
         "bundles": [
             {
                 "symlink": "6_12_1",
diff --git a/images/macos/toolsets/toolset-11.0.json b/images/macos/toolsets/toolset-11.0.json
index 18d72c23f..95e3cbe58 100644
--- a/images/macos/toolsets/toolset-11.0.json
+++ b/images/macos/toolsets/toolset-11.0.json
@@ -19,7 +19,7 @@
         "android-versions": [
             "11.0.2.0"
         ],
-        "bundle-default": "6_12_0",
+        "bundle-default": "latest",
         "bundles": [
             {
                 "symlink": "6_12_1",

From 3238fbf692cae945878872848a9bc683155ac95c Mon Sep 17 00:00:00 2001
From: Mikhail Timofeev <v-mitim@microsoft.com>
Date: Thu, 22 Oct 2020 16:26:02 +0300
Subject: [PATCH 04/12] remove 12.1 from macos 11

---
 images/macos/toolsets/toolset-11.0.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/images/macos/toolsets/toolset-11.0.json b/images/macos/toolsets/toolset-11.0.json
index 95e3cbe58..5ff2280a2 100644
--- a/images/macos/toolsets/toolset-11.0.json
+++ b/images/macos/toolsets/toolset-11.0.json
@@ -2,7 +2,7 @@
     "xcode": {
         "default": "11.7",
         "versions": [
-            "12.2_beta", "12.1_GM_seed", "11.7"
+            "12.2_beta", "11.7"
         ]
     },
     "xamarin": {
@@ -19,7 +19,7 @@
         "android-versions": [
             "11.0.2.0"
         ],
-        "bundle-default": "latest",
+        "bundle-default": "6_12_0",
         "bundles": [
             {
                 "symlink": "6_12_1",

From f0c96a361c23d185cc790c812fd6c6928e6d3c10 Mon Sep 17 00:00:00 2001
From: Mikhail Timofeev <48208649+miketimofeev@users.noreply.github.com>
Date: Thu, 22 Oct 2020 17:00:59 +0300
Subject: [PATCH 05/12] Revert "Freeze xcodeproj 1.18.0"

---
 images/macos/provision/core/rubygem.sh | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/images/macos/provision/core/rubygem.sh b/images/macos/provision/core/rubygem.sh
index 872436f88..83639e472 100755
--- a/images/macos/provision/core/rubygem.sh
+++ b/images/macos/provision/core/rubygem.sh
@@ -4,14 +4,6 @@ source ~/utils/utils.sh
 echo Updating RubyGems...
 gem update --system
 
-
-# Freeze xcodeproj 1.18.0 because version 1.19.0 contains breaking changes related to CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER flag
-# Related issues:
-# - https://github.com/CocoaPods/CocoaPods/issues/10153
-# - https://github.com/actions/virtual-environments/issues/1804
-# Need to revisit when Cocoapods 1.10.0 is released and added to VM
-gem install xcodeproj -v 1.18.0
-
 echo Installing xcode-install utility...
 gem install xcode-install --force
 

From f527ec3588bd8cc1a8005e8d23cb5577db2b5457 Mon Sep 17 00:00:00 2001
From: Mikhail Timofeev <v-mitim@microsoft.com>
Date: Fri, 23 Oct 2020 10:28:50 +0300
Subject: [PATCH 06/12] add comments

---
 images/win/scripts/Installers/Install-VS.ps1 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/images/win/scripts/Installers/Install-VS.ps1 b/images/win/scripts/Installers/Install-VS.ps1
index 7e4b2b763..d3db5b4dc 100644
--- a/images/win/scripts/Installers/Install-VS.ps1
+++ b/images/win/scripts/Installers/Install-VS.ps1
@@ -3,6 +3,7 @@
 ##  Desc:  Install Visual Studio
 ################################################################################
 
+# Temporary replace ip for download server to the one with the correct files and backup hosts file
 Copy-Item -Path "$env:windir\System32\drivers\etc\hosts" -Destination "C:\hosts_backup" -Verbose
 "68.232.34.200 download.visualstudio.microsoft.com" > "$env:windir\System32\drivers\etc\hosts"
 
@@ -51,4 +52,5 @@ if (Test-IsWin19) {
 }
 
 Invoke-PesterTests -TestFile "VisualStudio"
+# Restore hosts file after VS installation
 Move-Item -Path "C:\hosts_backup" -Destination "$env:windir\System32\drivers\etc\hosts" -Force -Verbose

From 096e01637269fa56e0f4c8291b4a9904089962e2 Mon Sep 17 00:00:00 2001
From: Maxim Lobanov <v-malob@microsoft.com>
Date: Fri, 23 Oct 2020 11:09:22 +0300
Subject: [PATCH 07/12] untap formulas

---
 images/macos/provision/core/openssl.sh | 12 +++++-------
 images/macos/provision/core/python.sh  | 17 +++++++++--------
 2 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/images/macos/provision/core/openssl.sh b/images/macos/provision/core/openssl.sh
index a058673a6..b4acd4303 100755
--- a/images/macos/provision/core/openssl.sh
+++ b/images/macos/provision/core/openssl.sh
@@ -2,18 +2,16 @@
 
 source ~/utils/utils.sh
 
-echo "Installing OpenSSL..."
-export PATH="/usr/local/bin:/usr/local/sbin:~/bin:$PATH"
-
 echo Installing OpenSSL...
-/usr/local/bin/brew install openssl
+brew install openssl
 
 # Install OpenSSL 1.0.2t
 # https://www.openssl.org/policies/releasestrat.html - Version 1.0.2 will be supported until 2019-12-31 (LTS)
 # To preserve backward compatibility with ruby-toolcache
-/usr/local/bin/brew tap-new local/openssl
-FORMULA_PATH=$(/usr/local/bin/brew extract openssl local/openssl | grep "Homebrew/Library/Taps")
-/usr/local/bin/brew install $FORMULA_PATH
+brew tap-new local/openssl
+FORMULA_PATH=$(brew extract openssl local/openssl | grep "Homebrew/Library/Taps")
+brew install $FORMULA_PATH
+brew untap local/homebrew-openssl
 
 # Set OpenSSL 1.0.2t as default
 ln -sf /usr/local/Cellar/openssl@1.0.2t /usr/local/Cellar/openssl
diff --git a/images/macos/provision/core/python.sh b/images/macos/provision/core/python.sh
index 1565ced20..13e054fe7 100755
--- a/images/macos/provision/core/python.sh
+++ b/images/macos/provision/core/python.sh
@@ -5,14 +5,15 @@ echo "Installing Python Tooling"
 
 echo "Brew Installing Python 3"
 # Workaround to have both 3.8 & 3.9(which required by some brew formulas) in the system, but only 3.8 is linked
-/usr/local/bin/brew install python@3.8
-/usr/local/bin/brew install python@3.9
-/usr/local/bin/brew unlink python@3.9
-/usr/local/bin/brew unlink python@3.8
-/usr/local/bin/brew link python@3.8
+brew install python@3.8
+brew install python@3.9
+brew unlink python@3.9
+brew unlink python@3.8
+brew link python@3.8
 
 echo "Brew Installing Python 2"
 # Create local tap with formula due to python2 formula depreciation
-/usr/local/bin/brew tap-new local/python2
-FORMULA_PATH=$(/usr/local/bin/brew extract python@2 local/python2 | grep "Homebrew/Library/Taps")
-/usr/local/bin/brew install $FORMULA_PATH
+brew tap-new local/python2
+FORMULA_PATH=$(brew extract python@2 local/python2 | grep "Homebrew/Library/Taps")
+brew install $FORMULA_PATH
+brew untap local/homebrew-python2

From baad68926ac7944208dfa01044517e61f6e439ab Mon Sep 17 00:00:00 2001
From: Vladimir Safonkin <vsafonkin@github.com>
Date: Fri, 23 Oct 2020 14:15:22 +0300
Subject: [PATCH 08/12] [macOS] Rework retry helper function (#1871)

* Rework macOS retry helper

* Add more logs
---
 images/macos/provision/utils/utils.sh | 35 +++++++++++++++++----------
 1 file changed, 22 insertions(+), 13 deletions(-)

diff --git a/images/macos/provision/utils/utils.sh b/images/macos/provision/utils/utils.sh
index a15f8d2ec..7428c9005 100755
--- a/images/macos/provision/utils/utils.sh
+++ b/images/macos/provision/utils/utils.sh
@@ -5,22 +5,31 @@ download_with_retries() {
     local URL="$1"
     local DEST="${2:-.}"
     local NAME="${3:-${URL##*/}}"
+    local COMPRESSED="$4"
 
-    echo "Downloading $URL..."
-    wget $URL   --output-document="$DEST/$NAME" \
-                --tries=30 \
-                --wait 30 \
-                --retry-connrefused \
-                --retry-on-host-error \
-                --retry-on-http-error=404,429,500,502,503 \
-                --no-verbose
-
-    if [ $? != 0 ]; then
-        echo "Could not download $URL; Exiting build!"
-        exit 1
+    if [[ $COMPRESSED == "compressed" ]]; then
+        COMMAND="curl $URL -4 -sL --compressed -o '$DEST/$NAME'"
+    else
+        COMMAND="curl $URL -4 -sL -o '$DEST/$NAME'"
     fi
 
-    return 0
+    echo "Downloading $URL..."
+    retries=20
+    interval=30
+    while [ $retries -gt 0 ]; do
+        ((retries--))
+        eval $COMMAND
+        if [ $? != 0 ]; then
+            echo "Unable to download $URL, next attempt in $interval sec, $retries attempts left"
+            sleep $interval
+        else
+            echo "$URL was downloaded successfully to $DEST/$NAME"
+            return 0
+        fi
+    done
+
+    echo "Could not download $URL"
+    return 1
 }
 
 is_BigSur() {

From 0d46520ccf08c3780f879b324d81639975be3fcd Mon Sep 17 00:00:00 2001
From: Mikhail Timofeev <48208649+miketimofeev@users.noreply.github.com>
Date: Fri, 23 Oct 2020 17:59:08 +0300
Subject: [PATCH 09/12] [macOS] Fail builds on errors during the image
 generation (#1756)

* set -e and fix all the scripts

* add source utils to finalize_vm script

* change xcode version in postbuild script

* fix for softwareupdates and for xcode version
---
 .../add-network-interface-detection.sh        |  2 +-
 .../provision/configuration/autologin.sh      |  2 ++
 .../configuration/configure-hostname.sh       |  4 ++--
 .../configuration/configure-machine.sh        | 10 +-------
 .../provision/configuration/configure-ssh.sh  |  2 +-
 .../configuration/disable-auto-updates.sh     |  2 +-
 .../provision/configuration/finalize-vm.sh    | 14 +++++++----
 .../provision/configuration/max-files.sh      |  4 +---
 .../macos/provision/configuration/ntpconf.sh  |  2 +-
 .../provision/configuration/preimagedata.sh   |  3 ++-
 .../configuration/screensaver-off.sh          |  3 ++-
 .../provision/configuration/shell-change.sh   |  2 ++
 .../macos/provision/core/android-toolsets.sh  |  2 +-
 images/macos/provision/core/audiodevice.sh    |  2 +-
 images/macos/provision/core/aws.sh            |  2 +-
 images/macos/provision/core/azcopy.sh         |  3 +--
 .../provision/core/build-xcode-symlinks.sh    |  2 +-
 images/macos/provision/core/chrome.sh         |  2 ++
 images/macos/provision/core/cocoapods.sh      |  3 ++-
 images/macos/provision/core/commonutils.sh    |  3 +--
 images/macos/provision/core/dotnet.sh         |  6 ++---
 images/macos/provision/core/edge.sh           |  2 ++
 images/macos/provision/core/firefox.sh        |  2 ++
 images/macos/provision/core/gcc.sh            |  2 +-
 images/macos/provision/core/git.sh            |  2 ++
 images/macos/provision/core/haskell.sh        |  2 +-
 images/macos/provision/core/miniconda.sh      |  2 +-
 images/macos/provision/core/mongodb.sh        |  2 +-
 images/macos/provision/core/node.sh           |  3 ++-
 images/macos/provision/core/nvm.sh            | 10 +++-----
 images/macos/provision/core/openjdk.sh        |  4 +---
 images/macos/provision/core/openssl.sh        |  2 +-
 images/macos/provision/core/php.sh            |  3 +--
 images/macos/provision/core/postgresql.sh     | 24 ++++++++++++-------
 images/macos/provision/core/powershell.sh     |  2 ++
 images/macos/provision/core/pypy.sh           |  3 +--
 images/macos/provision/core/python.sh         |  3 ++-
 images/macos/provision/core/reboot.sh         |  3 ++-
 images/macos/provision/core/ruby.sh           | 15 ++----------
 images/macos/provision/core/rubygem.sh        |  3 ++-
 images/macos/provision/core/rust.sh           |  4 +---
 images/macos/provision/core/stack.sh          |  2 +-
 .../provision/core/toolcache-high-sierra.sh   |  5 ++--
 images/macos/provision/core/toolcache.sh      |  2 +-
 images/macos/provision/core/vcpkg.sh          |  3 +--
 images/macos/provision/core/vsmac.sh          |  6 ++---
 .../provision/core/xamarin-android-ndk.sh     |  3 ++-
 images/macos/provision/core/xamarin.sh        |  9 ++++---
 .../macos/provision/core/xcode-postbuild.sh   |  9 +++++--
 images/macos/provision/core/xcode-sims.sh     |  2 +-
 images/macos/provision/core/xcode-tools.sh    |  4 +---
 images/macos/provision/utils/utils.sh         |  2 ++
 images/macos/provision/utils/xamarin-utils.sh |  8 +++----
 images/macos/provision/utils/xcode-utils.sh   |  2 ++
 54 files changed, 116 insertions(+), 109 deletions(-)

diff --git a/images/macos/provision/configuration/add-network-interface-detection.sh b/images/macos/provision/configuration/add-network-interface-detection.sh
index e939f04b6..ca9192bf4 100755
--- a/images/macos/provision/configuration/add-network-interface-detection.sh
+++ b/images/macos/provision/configuration/add-network-interface-detection.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 
 # This script was taken from https://github.com/timsutton/osx-vm-templates/blob/master/scripts/add-network-interface-detection.sh
 # Distributed by MIT license, license can be found at the bottom of this script
diff --git a/images/macos/provision/configuration/autologin.sh b/images/macos/provision/configuration/autologin.sh
index caa29a6b9..02f2f06d9 100755
--- a/images/macos/provision/configuration/autologin.sh
+++ b/images/macos/provision/configuration/autologin.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 # This script was taken from https://github.com/timsutton/osx-vm-templates/blob/master/scripts/autologin.sh
 # Distributed by MIT license, license can be found at the bottom of this script
 
diff --git a/images/macos/provision/configuration/configure-hostname.sh b/images/macos/provision/configuration/configure-hostname.sh
index 477e09807..e0de0bf8e 100644
--- a/images/macos/provision/configuration/configure-hostname.sh
+++ b/images/macos/provision/configuration/configure-hostname.sh
@@ -1,8 +1,8 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 # Add script for changing hostname to run on startup to prevent duplicate hostnames across the environment. Hostname and Computername should contain .local in name to avoid name resolution issues
 tee -a /usr/local/bin/change_hostname.sh > /dev/null <<\EOF
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 name="Mac-$(python -c 'from time import time; print int(round(time() * 1000))')"
 scutil --set HostName "${name}.local"
diff --git a/images/macos/provision/configuration/configure-machine.sh b/images/macos/provision/configuration/configure-machine.sh
index dbfae6731..df991c211 100644
--- a/images/macos/provision/configuration/configure-machine.sh
+++ b/images/macos/provision/configuration/configure-machine.sh
@@ -1,12 +1,4 @@
-#!/bin/bash
-
-# Enable firewall. SSH and VNC opened. Can't did it at bootstrap step, so placed it here
-defaults write /Library/Preferences/com.apple.alf globalstate -int 1
-
-# Setting correct time zone
-echo "Configuring system time to GMT..."
-rm -f /etc/localtime
-ln -sf /usr/share/zoneinfo/UTC /etc/localtime
+#!/bin/bash -e -o pipefail
 
 # https://developer.apple.com/documentation/webkit/testing_with_webdriver_in_safari
 # Safari’s executable is located at /usr/bin/safaridriver
diff --git a/images/macos/provision/configuration/configure-ssh.sh b/images/macos/provision/configuration/configure-ssh.sh
index f85e9efa2..73095f551 100755
--- a/images/macos/provision/configuration/configure-ssh.sh
+++ b/images/macos/provision/configuration/configure-ssh.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 
 [[ ! -d ~/.ssh ]] && mkdir ~/.ssh 2>/dev/null
 chmod 777 ~/.ssh
diff --git a/images/macos/provision/configuration/disable-auto-updates.sh b/images/macos/provision/configuration/disable-auto-updates.sh
index 3a35f5be7..050f7d9a9 100755
--- a/images/macos/provision/configuration/disable-auto-updates.sh
+++ b/images/macos/provision/configuration/disable-auto-updates.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 # Disabling automatic updates
 sudo softwareupdate --schedule off
diff --git a/images/macos/provision/configuration/finalize-vm.sh b/images/macos/provision/configuration/finalize-vm.sh
index b01b3c232..b69751398 100644
--- a/images/macos/provision/configuration/finalize-vm.sh
+++ b/images/macos/provision/configuration/finalize-vm.sh
@@ -1,12 +1,16 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
+
+source ~/utils/utils.sh
 
 # Close all finder windows because they can interfere with UI tests
 osascript -e 'tell application "Finder" to close windows'
 
-# Ignore available updates to prevent system pop-ups
-updateName=$(softwareupdate -l | grep "Title: " | awk -F[:,] '{print $2}' | awk '{$1=$1};1')
-if [ ! -z "$updateName" ]; then
-    sudo softwareupdate --ignore "$updateName"
+if is_Less_BigSur; then
+    # Ignore available updates to prevent system pop-ups
+    updateName=$(softwareupdate -l | grep "Title: " | awk -F[:,] '{print $2}' | awk '{$1=$1};1') || true
+    if [ ! -z "$updateName" ]; then
+        sudo softwareupdate --ignore "$updateName"
+    fi
 fi
 
 # Put documentation to $HOME root
diff --git a/images/macos/provision/configuration/max-files.sh b/images/macos/provision/configuration/max-files.sh
index a6e41f120..cd1df451a 100755
--- a/images/macos/provision/configuration/max-files.sh
+++ b/images/macos/provision/configuration/max-files.sh
@@ -1,6 +1,4 @@
-#!/bin/bash
-
-set -e
+#!/bin/bash -e -o pipefail
 
 Launch_Daemons="/Library/LaunchDaemons"
 
diff --git a/images/macos/provision/configuration/ntpconf.sh b/images/macos/provision/configuration/ntpconf.sh
index 09916cc37..b4f681280 100755
--- a/images/macos/provision/configuration/ntpconf.sh
+++ b/images/macos/provision/configuration/ntpconf.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 echo Additional NTP servers adding into /etc/ntp.conf file...
 cat > /etc/ntp.conf << EOF
diff --git a/images/macos/provision/configuration/preimagedata.sh b/images/macos/provision/configuration/preimagedata.sh
index c269a1492..8060acb74 100644
--- a/images/macos/provision/configuration/preimagedata.sh
+++ b/images/macos/provision/configuration/preimagedata.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
+
 source ~/utils/utils.sh
 
 imagedata_file="$HOME/imagedata.json"
diff --git a/images/macos/provision/configuration/screensaver-off.sh b/images/macos/provision/configuration/screensaver-off.sh
index c154f8d8f..6844792e5 100755
--- a/images/macos/provision/configuration/screensaver-off.sh
+++ b/images/macos/provision/configuration/screensaver-off.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
+
 # set screensaver idleTime to 0, to prevent turning screensaver on
 macUUID=`ioreg -rd1 -c IOPlatformExpertDevice | grep -i "UUID" | cut -c27-62`
 
diff --git a/images/macos/provision/configuration/shell-change.sh b/images/macos/provision/configuration/shell-change.sh
index a84216cbb..5fb12a03e 100644
--- a/images/macos/provision/configuration/shell-change.sh
+++ b/images/macos/provision/configuration/shell-change.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 echo "Changing shell to bash"
 sudo chsh -s /bin/bash $USERNAME
 sudo chsh -s /bin/bash root
\ No newline at end of file
diff --git a/images/macos/provision/core/android-toolsets.sh b/images/macos/provision/core/android-toolsets.sh
index 093a133ce..2f6139c8a 100755
--- a/images/macos/provision/core/android-toolsets.sh
+++ b/images/macos/provision/core/android-toolsets.sh
@@ -1,4 +1,4 @@
-#!/bin/bash -e
+#!/bin/bash -e -o pipefail
 source ~/utils/utils.sh
 
 function filter_components_by_version {
diff --git a/images/macos/provision/core/audiodevice.sh b/images/macos/provision/core/audiodevice.sh
index 4a151e3f9..ec7d71d93 100644
--- a/images/macos/provision/core/audiodevice.sh
+++ b/images/macos/provision/core/audiodevice.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 echo "install soundflower"
 brew cask install soundflower
diff --git a/images/macos/provision/core/aws.sh b/images/macos/provision/core/aws.sh
index 4d98d5122..02009449a 100644
--- a/images/macos/provision/core/aws.sh
+++ b/images/macos/provision/core/aws.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 echo Installing aws...
 curl "https://awscli.amazonaws.com/AWSCLIV2.pkg" -o "AWSCLIV2.pkg"
diff --git a/images/macos/provision/core/azcopy.sh b/images/macos/provision/core/azcopy.sh
index 56b848e92..5098c8789 100755
--- a/images/macos/provision/core/azcopy.sh
+++ b/images/macos/provision/core/azcopy.sh
@@ -1,5 +1,4 @@
-#!/bin/bash
-set -e
+#!/bin/bash -e -o pipefail
 
 AZCOPY_DOWNLOAD_URL="https://aka.ms/downloadazcopy-v10-mac"
 
diff --git a/images/macos/provision/core/build-xcode-symlinks.sh b/images/macos/provision/core/build-xcode-symlinks.sh
index 0cee8df88..600709387 100644
--- a/images/macos/provision/core/build-xcode-symlinks.sh
+++ b/images/macos/provision/core/build-xcode-symlinks.sh
@@ -1,4 +1,4 @@
-set -e
+#!/bin/bash -e -o pipefail
 
 source ~/utils/utils.sh
 
diff --git a/images/macos/provision/core/chrome.sh b/images/macos/provision/core/chrome.sh
index 203faee74..4a9deba1a 100644
--- a/images/macos/provision/core/chrome.sh
+++ b/images/macos/provision/core/chrome.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 echo "Installing Chrome..."
 brew cask install google-chrome
 
diff --git a/images/macos/provision/core/cocoapods.sh b/images/macos/provision/core/cocoapods.sh
index edf2a85f2..d692bf3d6 100755
--- a/images/macos/provision/core/cocoapods.sh
+++ b/images/macos/provision/core/cocoapods.sh
@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
+
 echo "Installing Cocoapods..."
 
 # Setup the Cocoapods master repo
diff --git a/images/macos/provision/core/commonutils.sh b/images/macos/provision/core/commonutils.sh
index 5a98f004f..c7e93496c 100644
--- a/images/macos/provision/core/commonutils.sh
+++ b/images/macos/provision/core/commonutils.sh
@@ -1,5 +1,4 @@
-#!/bin/sh
-set -e
+#!/bin/bash -e -o pipefail
 
 source ~/utils/utils.sh
 
diff --git a/images/macos/provision/core/dotnet.sh b/images/macos/provision/core/dotnet.sh
index 780564881..36df3be9d 100755
--- a/images/macos/provision/core/dotnet.sh
+++ b/images/macos/provision/core/dotnet.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 
 ###########################################################################
 # The main idea of this script is to automate dotnet installs
@@ -23,7 +23,7 @@ echo "Parsing dotnet SDK (except rc and preview versions) from .json..."
 if is_BigSur; then
     DOTNET_CHANNELS=(
     'https://raw.githubusercontent.com/dotnet/core/master/release-notes/2.1/releases.json'
-    'https://raw.githubusercontent.com/dotnet/core/master/release-notes/3.1/releases.json' 
+    'https://raw.githubusercontent.com/dotnet/core/master/release-notes/3.1/releases.json'
     )
 elif is_Less_Catalina; then
     DOTNET_CHANNELS=(
@@ -33,7 +33,7 @@ else
     DOTNET_CHANNELS=(
     'https://raw.githubusercontent.com/dotnet/core/master/release-notes/2.1/releases.json'
     'https://raw.githubusercontent.com/dotnet/core/master/release-notes/3.0/releases.json'
-    'https://raw.githubusercontent.com/dotnet/core/master/release-notes/3.1/releases.json' 
+    'https://raw.githubusercontent.com/dotnet/core/master/release-notes/3.1/releases.json'
     )
 fi
 
diff --git a/images/macos/provision/core/edge.sh b/images/macos/provision/core/edge.sh
index bc19a5666..da1673e0a 100644
--- a/images/macos/provision/core/edge.sh
+++ b/images/macos/provision/core/edge.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 source ~/utils/utils.sh
 
 echo "Installing Microsoft Edge..."
diff --git a/images/macos/provision/core/firefox.sh b/images/macos/provision/core/firefox.sh
index f6a90d619..b9ee1c5ea 100644
--- a/images/macos/provision/core/firefox.sh
+++ b/images/macos/provision/core/firefox.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 echo "Installing Firefox..."
 brew cask install firefox
 
diff --git a/images/macos/provision/core/gcc.sh b/images/macos/provision/core/gcc.sh
index febc0760c..fefe20fd6 100644
--- a/images/macos/provision/core/gcc.sh
+++ b/images/macos/provision/core/gcc.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 echo "Installing GCC@8 using homebrew..."
 brew install gcc@8
diff --git a/images/macos/provision/core/git.sh b/images/macos/provision/core/git.sh
index 55feb92b0..d59ebf915 100644
--- a/images/macos/provision/core/git.sh
+++ b/images/macos/provision/core/git.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 echo Installing Git...
 brew install git
 
diff --git a/images/macos/provision/core/haskell.sh b/images/macos/provision/core/haskell.sh
index 1bc11d915..b7f35e4d7 100644
--- a/images/macos/provision/core/haskell.sh
+++ b/images/macos/provision/core/haskell.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
 export PATH="$HOME/.ghcup/bin:$PATH"
diff --git a/images/macos/provision/core/miniconda.sh b/images/macos/provision/core/miniconda.sh
index b214b352e..876883a6b 100644
--- a/images/macos/provision/core/miniconda.sh
+++ b/images/macos/provision/core/miniconda.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 MINICONDA_INSTALLER="/tmp/miniconda.sh"
 curl -sL https://repo.continuum.io/miniconda/Miniconda3-latest-MacOSX-x86_64.sh -o $MINICONDA_INSTALLER
diff --git a/images/macos/provision/core/mongodb.sh b/images/macos/provision/core/mongodb.sh
index 1b6a5a8d9..3a4440d90 100644
--- a/images/macos/provision/core/mongodb.sh
+++ b/images/macos/provision/core/mongodb.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 
 # MongoDB object-value database
 # installs last version of MongoDB Community Edition
diff --git a/images/macos/provision/core/node.sh b/images/macos/provision/core/node.sh
index 840b433f9..59e727ce9 100644
--- a/images/macos/provision/core/node.sh
+++ b/images/macos/provision/core/node.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 source ~/utils/utils.sh
 
 node_modules=(
@@ -16,7 +18,6 @@ if is_Less_Catalina; then
 
   echo Installing NPM 3.x.x...
   npm install -g npm@3
-  npm config set prefix /usr/local
 
   # This step is required to install App Center CLI
   echo Installing Omelette...
diff --git a/images/macos/provision/core/nvm.sh b/images/macos/provision/core/nvm.sh
index 527bd4c62..c02ecf431 100755
--- a/images/macos/provision/core/nvm.sh
+++ b/images/macos/provision/core/nvm.sh
@@ -1,5 +1,4 @@
-#!/bin/sh
-
+#!/bin/bash -e -o pipefail
 ###########################################################################
 # The script installs node version manager with node versions 6,8,10 and 12
 #
@@ -24,11 +23,8 @@ if [ $? -eq 0 ]; then
         nvm alias node12 lts/erbium
         nvm alias node13 v13
         nvm alias node14 v14
-
-        if is_Catalina || is_BigSur; then
-                # set system node as default
-                nvm alias default system
-        fi
+        # set system node as default
+        nvm alias default system
 else
         echo error
 fi
diff --git a/images/macos/provision/core/openjdk.sh b/images/macos/provision/core/openjdk.sh
index ca2c5f017..c2b22bafa 100644
--- a/images/macos/provision/core/openjdk.sh
+++ b/images/macos/provision/core/openjdk.sh
@@ -1,6 +1,4 @@
-#!/bin/sh
-
-set -e
+#!/bin/bash -e -o pipefail
 
 source ~/utils/utils.sh
 
diff --git a/images/macos/provision/core/openssl.sh b/images/macos/provision/core/openssl.sh
index a058673a6..855c1c600 100755
--- a/images/macos/provision/core/openssl.sh
+++ b/images/macos/provision/core/openssl.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 
 source ~/utils/utils.sh
 
diff --git a/images/macos/provision/core/php.sh b/images/macos/provision/core/php.sh
index 08c19f942..901114481 100644
--- a/images/macos/provision/core/php.sh
+++ b/images/macos/provision/core/php.sh
@@ -1,5 +1,4 @@
-#!/bin/sh
-set -e
+#!/bin/bash -e -o pipefail
 
 echo Installing PHP
 brew install php
diff --git a/images/macos/provision/core/postgresql.sh b/images/macos/provision/core/postgresql.sh
index f69e078aa..b5d7ab61c 100644
--- a/images/macos/provision/core/postgresql.sh
+++ b/images/macos/provision/core/postgresql.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 #Install latest version of postgresql
 brew install postgres
@@ -6,13 +6,21 @@ brew install postgres
 #Service postgresql should be started before use.
 brew services start postgresql
 
-#Verify that PostgreSQL is ready for accept incoming connections.
-# exit codes:
-# ready - 0
-# reject - 1
-# connection timeout - 2
-# incorrect credentials or parameters - 3
-pg_isready
+#Verify PostgreSQL is ready for accept incoming connections
+echo "Check PostgreSQL service is running"
+i=10
+COMMAND='pg_isready'
+while [ $i -gt 0 ]; do
+    echo "Check PostgreSQL service status"
+    eval $COMMAND && break
+    ((i--))
+    if [ $i == 0 ]; then
+        echo "PostgreSQL service not ready, all attempts exhausted"
+        exit 1
+    fi
+    echo "PostgreSQL service not ready, wait 10 more sec, attempts left: $i"
+    sleep 10
+done
 
 #Stop postgresql
 brew services stop postgresql
\ No newline at end of file
diff --git a/images/macos/provision/core/powershell.sh b/images/macos/provision/core/powershell.sh
index 5717adc74..12beeca64 100644
--- a/images/macos/provision/core/powershell.sh
+++ b/images/macos/provision/core/powershell.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 source ~/utils/utils.sh
 
 echo Installing Azure CLI...
diff --git a/images/macos/provision/core/pypy.sh b/images/macos/provision/core/pypy.sh
index 5f24cd5f5..d55d785af 100644
--- a/images/macos/provision/core/pypy.sh
+++ b/images/macos/provision/core/pypy.sh
@@ -1,10 +1,9 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 ################################################################################
 ##  File:  pypy.sh
 ##  Desc:  Installs PyPy
 ################################################################################
 source ~/utils/utils.sh
-set -e
 
 function InstallPyPy
 {
diff --git a/images/macos/provision/core/python.sh b/images/macos/provision/core/python.sh
index 1565ced20..7aa0e7776 100755
--- a/images/macos/provision/core/python.sh
+++ b/images/macos/provision/core/python.sh
@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
+
 source ~/utils/utils.sh
 
 echo "Installing Python Tooling"
diff --git a/images/macos/provision/core/reboot.sh b/images/macos/provision/core/reboot.sh
index a6e444351..e0a2dfb80 100644
--- a/images/macos/provision/core/reboot.sh
+++ b/images/macos/provision/core/reboot.sh
@@ -1,2 +1,3 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
+
 shutdown -r now
\ No newline at end of file
diff --git a/images/macos/provision/core/ruby.sh b/images/macos/provision/core/ruby.sh
index 19877de3e..61eb33c09 100755
--- a/images/macos/provision/core/ruby.sh
+++ b/images/macos/provision/core/ruby.sh
@@ -1,17 +1,6 @@
-#!/bin/sh
-
-set -e
+#!/bin/bash -e -o pipefail
 
 source ~/utils/utils.sh
 
 echo Installing Ruby...
-if is_Less_BigSur; then
-    # We can't install latest ruby 2.7 as a default version related with bug
-    # https://github.com/fastlane/fastlane/issues/15397
-    /usr/local/bin/brew install ruby@2.6
-    ln -sf /usr/local/opt/ruby\@2.6 /usr/local/opt/ruby
-else
-    brew install ruby
-fi
-
-
+brew install ruby
diff --git a/images/macos/provision/core/rubygem.sh b/images/macos/provision/core/rubygem.sh
index 83639e472..14f4af7a0 100755
--- a/images/macos/provision/core/rubygem.sh
+++ b/images/macos/provision/core/rubygem.sh
@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
+
 source ~/utils/utils.sh
 
 echo Updating RubyGems...
diff --git a/images/macos/provision/core/rust.sh b/images/macos/provision/core/rust.sh
index 5ef7675ca..de82c7b4a 100644
--- a/images/macos/provision/core/rust.sh
+++ b/images/macos/provision/core/rust.sh
@@ -1,6 +1,4 @@
-#!/bin/sh
-
-set -e
+#!/bin/bash -e -o pipefail
 
 echo Installing Rustup...
 brew install rustup-init
diff --git a/images/macos/provision/core/stack.sh b/images/macos/provision/core/stack.sh
index 81b41fa8a..17c5ecd9a 100644
--- a/images/macos/provision/core/stack.sh
+++ b/images/macos/provision/core/stack.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 echo "Get the latest Stack version..."
 StackRelease=$(curl -s "https://api.github.com/repos/commercialhaskell/stack/releases/latest")
diff --git a/images/macos/provision/core/toolcache-high-sierra.sh b/images/macos/provision/core/toolcache-high-sierra.sh
index 61a3cc8c1..9a67418b3 100644
--- a/images/macos/provision/core/toolcache-high-sierra.sh
+++ b/images/macos/provision/core/toolcache-high-sierra.sh
@@ -1,7 +1,6 @@
-#!/bin/sh
-
+#!/bin/bash -e -o pipefail
 ###########################################################################
-# The script downloads macos hosted tool cache for several Python versions 
+# The script downloads macos hosted tool cache for several Python versions
 # and installs them onto the system
 #
 ###########################################################################
diff --git a/images/macos/provision/core/toolcache.sh b/images/macos/provision/core/toolcache.sh
index eb6dc905e..dab45debe 100755
--- a/images/macos/provision/core/toolcache.sh
+++ b/images/macos/provision/core/toolcache.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 
 # Download hosted tool cache with npm
 NPM_FEED="npm.pkg.github.com"
diff --git a/images/macos/provision/core/vcpkg.sh b/images/macos/provision/core/vcpkg.sh
index 289d7ba49..260f2c2aa 100644
--- a/images/macos/provision/core/vcpkg.sh
+++ b/images/macos/provision/core/vcpkg.sh
@@ -1,6 +1,5 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
-set -e
 source ~/utils/utils.sh
 
 # Set env variable for vcpkg
diff --git a/images/macos/provision/core/vsmac.sh b/images/macos/provision/core/vsmac.sh
index 20a8efd46..f0c498fc8 100644
--- a/images/macos/provision/core/vsmac.sh
+++ b/images/macos/provision/core/vsmac.sh
@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
+
 source ~/utils/utils.sh
 source ~/utils/xamarin-utils.sh
 
@@ -22,9 +23,6 @@ echo "Moving Visual Studio to /Applications/..."
 pushd $TMPMOUNT
 tar cf - "./Visual Studio.app" | tar xf - -C /Applications/
 
-echo "Launching vstools..."
-/Applications/Visual\ Studio.app/Contents/MacOS/vstool
-
 popd
 sudo hdiutil detach "$TMPMOUNT"
 sudo rm -rf "$TMPMOUNT"
\ No newline at end of file
diff --git a/images/macos/provision/core/xamarin-android-ndk.sh b/images/macos/provision/core/xamarin-android-ndk.sh
index 35e4d0064..d5b23ebb0 100644
--- a/images/macos/provision/core/xamarin-android-ndk.sh
+++ b/images/macos/provision/core/xamarin-android-ndk.sh
@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
+
 source ~/utils/utils.sh
 
 ANDROID_HOME=$HOME/Library/Android/sdk
diff --git a/images/macos/provision/core/xamarin.sh b/images/macos/provision/core/xamarin.sh
index 0f0801d7b..86dc1a0fe 100755
--- a/images/macos/provision/core/xamarin.sh
+++ b/images/macos/provision/core/xamarin.sh
@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
+
 source ~/utils/utils.sh
 source ~/utils/xamarin-utils.sh
 
@@ -63,8 +64,10 @@ createBundleLink $CURRENT_SDK_SYMLINK "Current"
 # Fix nuget in some mono versions because of known bugs
 #
 
-# Fix Mono issue with default nuget: https://github.com/mono/mono/issues/17637
-installNuget "6.4.0" "5.3.1"
+if is_Less_BigSur; then
+  # Fix Mono issue with default nuget: https://github.com/mono/mono/issues/17637
+  installNuget "6.4.0" "5.3.1"
+fi
 
 if is_Less_Catalina; then
   installNuget "4.8.1" "4.3.0"
diff --git a/images/macos/provision/core/xcode-postbuild.sh b/images/macos/provision/core/xcode-postbuild.sh
index bf7ba387e..6afd42c21 100644
--- a/images/macos/provision/core/xcode-postbuild.sh
+++ b/images/macos/provision/core/xcode-postbuild.sh
@@ -1,11 +1,11 @@
-#!/bin/bash
+#!/bin/bash -e -o pipefail
 
 source ~/utils/utils.sh
 XCODE_LIST=($(get_xcode_list_from_toolset))
 DEFAULT_XCODE_VERSION=$(get_default_xcode_from_toolset)
 
 # https://github.com/microsoft/appcenter/issues/847
-# Assets.xcassets : error : CoreData: error: (6922) I/O error for database 
+# Assets.xcassets : error : CoreData: error: (6922) I/O error for database
 # at $HOME/Library/Developer/Xcode/UserData/IB Support/Simulator Devices/{GUID}
 echo "Erase a device's contents and settings:"
 for XCODE_VERSION in "${XCODE_LIST[@]}"
@@ -15,6 +15,11 @@ do
     #add sleep to let CoreSimulatorService to exit
     sleep 3
 
+    # Version 12.2_beta installed into 12.2 directory and 12.1_GM_seed in 12.1
+    pattern="[0-9]{1,2}.*_"
+    if [[ $XCODE_VERSION =~ $pattern ]] ; then
+        XCODE_VERSION=$(echo $XCODE_VERSION | cut -d"_" -f 1)
+    fi
     # Select xcode version by default
     sudo xcode-select -s "/Applications/Xcode_${XCODE_VERSION}.app/Contents/Developer"
 
diff --git a/images/macos/provision/core/xcode-sims.sh b/images/macos/provision/core/xcode-sims.sh
index fb2af5d41..8dff14a5e 100755
--- a/images/macos/provision/core/xcode-sims.sh
+++ b/images/macos/provision/core/xcode-sims.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 
 source ~/utils/utils.sh
 
diff --git a/images/macos/provision/core/xcode-tools.sh b/images/macos/provision/core/xcode-tools.sh
index 643dc2932..773b07a95 100755
--- a/images/macos/provision/core/xcode-tools.sh
+++ b/images/macos/provision/core/xcode-tools.sh
@@ -1,10 +1,8 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 
 # The script currently requires 2 external variables to be set: XCODE_INSTALL_USER
 # and XCODE_INSTALL_PASSWORD, in order to access the Apple Developer Center
 
-set -e
-
 source ~/utils/utils.sh
 source ~/utils/xcode-utils.sh
 
diff --git a/images/macos/provision/utils/utils.sh b/images/macos/provision/utils/utils.sh
index 7428c9005..d2c393177 100755
--- a/images/macos/provision/utils/utils.sh
+++ b/images/macos/provision/utils/utils.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 download_with_retries() {
 # Due to restrictions of bash functions, positional arguments are used here.
 # In case if you using latest argument NAME, you should also set value to all previous parameters.
diff --git a/images/macos/provision/utils/xamarin-utils.sh b/images/macos/provision/utils/xamarin-utils.sh
index dd6d7ae95..1017cec24 100644
--- a/images/macos/provision/utils/xamarin-utils.sh
+++ b/images/macos/provision/utils/xamarin-utils.sh
@@ -1,11 +1,11 @@
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 
 # Xamarin can clean their SDKs while updating to newer versions,
 # so we should be able to detect it during image generation
 downloadAndInstallPKG() {
   local PKG_URL=$1
   local PKG_NAME=${PKG_URL##*/}
-  
+
   download_with_retries $PKG_URL
 
   echo "Installing $PKG_NAME..."
@@ -159,7 +159,7 @@ installNunitConsole() {
   local MONO_VERSION=$1
 
   cat <<EOF > ${TMPMOUNT}/${NUNIT3_CONSOLE_BIN}
-#!/bin/sh
+#!/bin/bash -e -o pipefail
 exec /Library/Frameworks/Mono.framework/Versions/${MONO_VERSION}/bin/mono --debug \$MONO_OPTIONS $NUNIT3_PATH/nunit3-console.exe "\$@"
 EOF
   sudo chmod +x ${TMPMOUNT}/${NUNIT3_CONSOLE_BIN}
@@ -180,7 +180,7 @@ downloadNUnitConsole() {
     echo "Installing NUnit 3..."
     sudo unzip nunit3.zip -d $NUNIT3_PATH
     NUNIT3_CONSOLE_BIN=nunit3-console
-    
+
     popd
 }
 
diff --git a/images/macos/provision/utils/xcode-utils.sh b/images/macos/provision/utils/xcode-utils.sh
index 7cd63b2fc..cfe934398 100644
--- a/images/macos/provision/utils/xcode-utils.sh
+++ b/images/macos/provision/utils/xcode-utils.sh
@@ -1,3 +1,5 @@
+#!/bin/bash -e -o pipefail
+
 createXamarinProvisionatorSymlink() {
     local XCODE_VERSION="$1"
     local FULL_VERSION=$(echo "${XCODE_VERSION}.0.0" | cut -d'.' -f 1,2,3)

From 73c5b0bf879ab16a804170af0670a89560d4aa1a Mon Sep 17 00:00:00 2001
From: Maxim Lobanov <maxim-lobanov@github.com>
Date: Fri, 23 Oct 2020 20:12:52 +0300
Subject: [PATCH 10/12] Update images/macos/provision/core/openssl.sh

Co-authored-by: Mike McQuaid <mike@mikemcquaid.com>
---
 images/macos/provision/core/openssl.sh | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/images/macos/provision/core/openssl.sh b/images/macos/provision/core/openssl.sh
index b4acd4303..ff6c3ff09 100755
--- a/images/macos/provision/core/openssl.sh
+++ b/images/macos/provision/core/openssl.sh
@@ -8,10 +8,9 @@ brew install openssl
 # Install OpenSSL 1.0.2t
 # https://www.openssl.org/policies/releasestrat.html - Version 1.0.2 will be supported until 2019-12-31 (LTS)
 # To preserve backward compatibility with ruby-toolcache
-brew tap-new local/openssl
+brew tap-new --no-git local/openssl
 FORMULA_PATH=$(brew extract openssl local/openssl | grep "Homebrew/Library/Taps")
 brew install $FORMULA_PATH
-brew untap local/homebrew-openssl
 
 # Set OpenSSL 1.0.2t as default
 ln -sf /usr/local/Cellar/openssl@1.0.2t /usr/local/Cellar/openssl
@@ -23,4 +22,4 @@ ln -sf ../Cellar/openssl/1.0.2t /usr/local/opt/openssl
 # https://github.com/microsoft/azure-pipelines-agent/blob/master/docs/start/envosx.md
 mkdir -p /usr/local/lib/
 ln -s /usr/local/opt/openssl@1.0.2t/lib/libcrypto.1.0.0.dylib /usr/local/lib/
-ln -s /usr/local/opt/openssl@1.0.2t/lib/libssl.1.0.0.dylib /usr/local/lib/
\ No newline at end of file
+ln -s /usr/local/opt/openssl@1.0.2t/lib/libssl.1.0.0.dylib /usr/local/lib/

From bbb8bd3f4ca995d718ce79da8651b0465270af01 Mon Sep 17 00:00:00 2001
From: Maxim Lobanov <maxim-lobanov@github.com>
Date: Fri, 23 Oct 2020 20:12:58 +0300
Subject: [PATCH 11/12] Update images/macos/provision/core/python.sh

Co-authored-by: Mike McQuaid <mike@mikemcquaid.com>
---
 images/macos/provision/core/python.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/images/macos/provision/core/python.sh b/images/macos/provision/core/python.sh
index 13e054fe7..d0a56ee1c 100755
--- a/images/macos/provision/core/python.sh
+++ b/images/macos/provision/core/python.sh
@@ -13,7 +13,6 @@ brew link python@3.8
 
 echo "Brew Installing Python 2"
 # Create local tap with formula due to python2 formula depreciation
-brew tap-new local/python2
+brew tap-new --no-git local/python2
 FORMULA_PATH=$(brew extract python@2 local/python2 | grep "Homebrew/Library/Taps")
 brew install $FORMULA_PATH
-brew untap local/homebrew-python2

From 16ff1bc8a86029832184b27aec82a163eb3d72a7 Mon Sep 17 00:00:00 2001
From: Mikhail Timofeev <48208649+miketimofeev@users.noreply.github.com>
Date: Sun, 25 Oct 2020 21:34:19 +0300
Subject: [PATCH 12/12] Revert "[windows] Temporary workaround for VS
 installation" (#1895)

---
 images/win/scripts/Installers/Install-VS.ps1 | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/images/win/scripts/Installers/Install-VS.ps1 b/images/win/scripts/Installers/Install-VS.ps1
index d3db5b4dc..4c1ce9528 100644
--- a/images/win/scripts/Installers/Install-VS.ps1
+++ b/images/win/scripts/Installers/Install-VS.ps1
@@ -3,10 +3,6 @@
 ##  Desc:  Install Visual Studio
 ################################################################################
 
-# Temporary replace ip for download server to the one with the correct files and backup hosts file
-Copy-Item -Path "$env:windir\System32\drivers\etc\hosts" -Destination "C:\hosts_backup" -Verbose
-"68.232.34.200 download.visualstudio.microsoft.com" > "$env:windir\System32\drivers\etc\hosts"
-
 $toolset = Get-ToolsetContent
 $requiredComponents = $toolset.visualStudio.workloads | ForEach-Object { "--add $_" }
 $workLoads = @(
@@ -51,6 +47,4 @@ if (Test-IsWin19) {
 	Install-Binary -Url $sdkUrl -Name $sdkFileName -ArgumentList $argumentList
 }
 
-Invoke-PesterTests -TestFile "VisualStudio"
-# Restore hosts file after VS installation
-Move-Item -Path "C:\hosts_backup" -Destination "$env:windir\System32\drivers\etc\hosts" -Force -Verbose
+Invoke-PesterTests -TestFile "VisualStudio"
\ No newline at end of file