diff --git a/.travis.yml b/.travis.yml
index 33e07d3..fc45839 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -103,21 +103,22 @@ matrix:
       # TODO: test in SH mode
 
 before_install:
-  - brew install cdrtools               || true
-  - brew install mtools                 || true
-  - brew cask install gdisk             || true
-  - brew install imagemagick --with-x11 || true
-  - make --version                      || true
-  - nasm -v                             || true
-  - mtools --version                    || true
-  - mtools                              || true
-  - mkisofs --version                   || true
-  - zip --help                          || true
-  - unzip --version                     || true
-  - gdisk --version                     || true
-  - fdisk --version                     || true
-  - import --version                    || true
-  - Xvfb -h                             || true
+  - brew install cdrtools    || true
+  - brew install mtools      || true
+  - brew cask install gdisk  || true
+  - brew install imagemagick || true # --with-x11
+  - make --version           || true
+  - nasm -v                  || true
+  - mtools --version         || true
+  - mtools                   || true
+  - mkisofs --version        || true
+  - zip --help               || true
+  - unzip --version          || true
+  - gdisk --version          || true
+  - fdisk --version          || true
+  - import --version         || true
+  - Xvfb -h                  || true
+  - ssh -V                   || true
   - ./utils/install-sikulix.sh
   - export PATH="$HOME/sikulix/:$PATH"
   - if test "$MODE" = virtualbox -o "$MODE" = self-test; then ./utils/install-virtualbox.sh; fi
diff --git a/Makefile b/Makefile
index 2f20537..bc6f493 100644
--- a/Makefile
+++ b/Makefile
@@ -391,18 +391,24 @@ build/test_pass/sudo_iso_mount: ${os_filename} build/check_makefile | build/mnt_
 	touch $@
 
 .PHONY: test/macos
-test/macos: all test/noemu test/macos-sh
+test/macos: all test/noemu test/macos-sh test/macos-sh-x11
+
+.PHONY: test/macos-sh-x11
+test/macos-sh-x11:
+	sudo mkdir -p /tmp/.X11-unix
+	sudo chmod a+rwxt /tmp/.X11-unix
+	xvfb :42 & \
+	sleep 5; \
+	DISPLAY=:42 xterm -e ./os.bat & \
+	sleep 5; \
+#	DISPLAY=:42 import -window root deploy-screenshots/macos-sh-x11.png
+	screencapture deploy-screenshots/macos-sh-x11-screencapture.png
 
 .PHONY: test/macos-sh
 test/macos-sh: build/check_makefile | deploy-screenshots
-	sudo mkdir /tmp/.X11-unix
-	sudo chmod a+rwxt /tmp/.X11-unix
-	xvfb :42 & \
-	sleep 10; \
-	DISPLAY=:42 xterm -e 'sh -c "echo hello; sleep 30"' & \
-	sleep 5; \
-	DISPLAY=:42 import -window root deploy-screenshots/macos.png
-	ls -l deploy-screenshots/
-	identify deploy-screenshots/* || true
+	osascript -e 'tell app "Terminal" to activate'
+	osascript -e 'tell app "Terminal" to do script "'"$$PWD"'/os.bat"'
+	sleep 5
+	screencapture deploy-screenshots/screencapture-os-bat.png
 
 # See https://wiki.osdev.org/EFI#Emulation to emulate an UEFI system with qemu, to test the EFI boot from hdd / cd / fd (?).
diff --git a/utils/auto-push.sh b/utils/auto-push.sh
index da96246..9f658cf 100755
--- a/utils/auto-push.sh
+++ b/utils/auto-push.sh
@@ -63,14 +63,22 @@ else
   chmod 600 ~/.ssh/travis-deploy-key-id_rsa
   eval `ssh-agent -s`
   ssh-add ~/.ssh/travis-deploy-key-id_rsa
-
+  # TODO: all the config should be in a separate folder, instead of using ~/.ssh for the id_rsa.
+  
+  known_hosts_d="$(UMASK=077 mktemp -d)"
+  touch ${known_hosts_d}/known_hosts
+  chmod 600 ${known_hosts_d}/known_hosts
+  echo "github.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==" >> "${known_hosts_d}/known_hosts"
+  
   TRAVIS_AUTO_PUSH_REPO_DIR="$HOME/travis-temp-auto-push-$(date +%s)"
   if test -e "$TRAVIS_AUTO_PUSH_REPO_DIR"; then rm -rf "$TRAVIS_AUTO_PUSH_REPO_DIR"; fi
-  git clone -b "$deploy_base_commit" --depth 1 --shallow-submodules "$deploy_repo" "$TRAVIS_AUTO_PUSH_REPO_DIR"
+  GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=${known_hosts_d}/known_hosts" git clone -b "$deploy_base_commit" --depth 1 --shallow-submodules "$deploy_repo" "$TRAVIS_AUTO_PUSH_REPO_DIR"
   (cd "$TRAVIS_AUTO_PUSH_REPO_DIR" && git checkout -b "$deploy_branch")
   rsync -a "${deploy_directory}/" "${TRAVIS_AUTO_PUSH_REPO_DIR}/"
   (cd "$TRAVIS_AUTO_PUSH_REPO_DIR" && git add -A . && git commit --allow-empty -m "Auto-publish to $deploy_branch") > commit.log || (cat commit.log && exit 1)
   (cd "$TRAVIS_AUTO_PUSH_REPO_DIR" && git log --oneline --decorate --graph -10)
   echo '(cd '"$TRAVIS_AUTO_PUSH_REPO_DIR"' && git push --force --quiet "'"$deploy_repo"'" "'"$deploy_branch"'")'
-  (cd "$TRAVIS_AUTO_PUSH_REPO_DIR" && git push --force --quiet "$deploy_repo" "$deploy_branch" >/dev/null 2>&1) >/dev/null 2>&1 # redirect to /dev/null to avoid showing credentials.
+  (cd "$TRAVIS_AUTO_PUSH_REPO_DIR" && GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=${known_hosts_d}/known_hosts" git push --force --quiet "$deploy_repo" "$deploy_branch" >/dev/null 2>&1) >/dev/null 2>&1 # redirect to /dev/null to avoid showing credentials.
+  # Cleanup:
+  rm "${known_hosts_d}/known_hosts"
 fi