diff --git a/lib/debootstrap.sh b/lib/debootstrap.sh
index 74f85a4458..f89e02a7e8 100644
--- a/lib/debootstrap.sh
+++ b/lib/debootstrap.sh
@@ -211,7 +211,7 @@ create_rootfs_cache()
 
 		# stage: update packages list
 		display_alert "Updating package list" "$RELEASE" "info"
-		eval 'LC_ALL=C LANG=C chroot $SDCARD /bin/bash -c "apt -q -y $apt_extra update"' \
+		eval 'LC_ALL=C LANG=C chroot $SDCARD /bin/bash -c "apt-get -q -y $apt_extra update"' \
 			${PROGRESS_LOG_TO_FILE:+' | tee -a $DEST/debug/debootstrap.log'} \
 			${OUTPUT_DIALOG:+' | dialog --backtitle "$backtitle" --progressbox "Updating package lists..." $TTY_Y $TTY_X'} \
 			${OUTPUT_VERYSILENT:+' >/dev/null 2>/dev/null'}
@@ -220,7 +220,7 @@ create_rootfs_cache()
 
 		# stage: upgrade base packages from xxx-updates and xxx-backports repository branches
 		display_alert "Upgrading base packages" "Armbian" "info"
-		eval 'LC_ALL=C LANG=C chroot $SDCARD /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt -y -q \
+		eval 'LC_ALL=C LANG=C chroot $SDCARD /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt-get -y -q \
 			$apt_extra $apt_extra_progress upgrade"' \
 			${PROGRESS_LOG_TO_FILE:+' | tee -a $DEST/debug/debootstrap.log'} \
 			${OUTPUT_DIALOG:+' | dialog --backtitle "$backtitle" --progressbox "Upgrading base packages..." $TTY_Y $TTY_X'} \
@@ -230,7 +230,7 @@ create_rootfs_cache()
 
 		# stage: install additional packages
 		display_alert "Installing packages for" "Armbian" "info"
-		eval 'LC_ALL=C LANG=C chroot $SDCARD /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt -y -q \
+		eval 'LC_ALL=C LANG=C chroot $SDCARD /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt-get -y -q \
 			$apt_extra $apt_extra_progress --no-install-recommends install $PACKAGE_LIST"' \
 			${PROGRESS_LOG_TO_FILE:+' | tee -a $DEST/debug/debootstrap.log'} \
 			${OUTPUT_DIALOG:+' | dialog --backtitle "$backtitle" --progressbox "Installing Armbian system..." $TTY_Y $TTY_X'} \
@@ -239,7 +239,7 @@ create_rootfs_cache()
 		[[ ${PIPESTATUS[0]} -ne 0 ]] && exit_with_error "Installation of Armbian packages failed"
 
 		# stage: remove downloaded packages
-		chroot $SDCARD /bin/bash -c "apt clean"
+		chroot $SDCARD /bin/bash -c "apt-get clean"
 
 		# DEBUG: print free space
 		echo -e "\nFree space:"
diff --git a/lib/desktop.sh b/lib/desktop.sh
index bab2f8e854..59460a7a5d 100644
--- a/lib/desktop.sh
+++ b/lib/desktop.sh
@@ -125,17 +125,17 @@ desktop_postinstall ()
 {
 	# disable display manager for first run
 	chroot "${SDCARD}" /bin/bash -c "systemctl --no-reload disable lightdm.service >/dev/null 2>&1"
-	chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt update" >> "${DEST}"/debug/install.log
+	chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt-get update" >> "${DEST}"/debug/install.log
 	if [[ ${FULL_DESKTOP} == yes ]]; then
-		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt -yqq --no-install-recommends install $PACKAGE_LIST_DESKTOP_FULL" >> "${DEST}"/debug/install.log
+		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt-get -yqq --no-install-recommends install $PACKAGE_LIST_DESKTOP_FULL" >> "${DEST}"/debug/install.log
 	fi
 
 	if [[ -n ${PACKAGE_LIST_DESKTOP_BOARD} ]]; then
-		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt -yqq --no-install-recommends install $PACKAGE_LIST_DESKTOP_BOARD" >> "${DEST}"/debug/install.log
+		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt-get -yqq --no-install-recommends install $PACKAGE_LIST_DESKTOP_BOARD" >> "${DEST}"/debug/install.log
 	fi
 
 	if [[ -n ${PACKAGE_LIST_DESKTOP_FAMILY} ]]; then
-		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt -yqq --no-install-recommends install $PACKAGE_LIST_DESKTOP_FAMILY" >> "${DEST}"/debug/install.log
+		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt-get -yqq --no-install-recommends install $PACKAGE_LIST_DESKTOP_FAMILY" >> "${DEST}"/debug/install.log
 	fi
 
 	# Compile Turbo Frame buffer for sunxi
diff --git a/lib/distributions.sh b/lib/distributions.sh
index 5993cb0f7f..77e988cb44 100644
--- a/lib/distributions.sh
+++ b/lib/distributions.sh
@@ -217,22 +217,22 @@ install_common()
 
 	# install family packages
 	if [[ -n ${PACKAGE_LIST_FAMILY} ]]; then
-		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt -yqq --no-install-recommends install $PACKAGE_LIST_FAMILY" >> "${DEST}"/debug/install.log
+		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt-get -yqq --no-install-recommends install $PACKAGE_LIST_FAMILY" >> "${DEST}"/debug/install.log
 	fi
 
 	# install board packages
 	if [[ -n ${PACKAGE_LIST_BOARD} ]]; then
-		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt -yqq --no-install-recommends install $PACKAGE_LIST_BOARD" >> "${DEST}"/debug/install.log
+		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt-get -yqq --no-install-recommends install $PACKAGE_LIST_BOARD" >> "${DEST}"/debug/install.log
 	fi
 
 	# remove family packages
 	if [[ -n ${PACKAGE_LIST_FAMILY_REMOVE} ]]; then
-		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt -yqq remove --auto-remove $PACKAGE_LIST_FAMILY_REMOVE" >> "${DEST}"/debug/install.log
+		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt-get -yqq remove --auto-remove $PACKAGE_LIST_FAMILY_REMOVE" >> "${DEST}"/debug/install.log
 	fi
 
 	# remove board packages
 	if [[ -n ${PACKAGE_LIST_BOARD_REMOVE} ]]; then
-		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt -yqq remove --auto-remove $PACKAGE_LIST_BOARD_REMOVE" >> "${DEST}"/debug/install.log
+		chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive  apt-get -yqq remove --auto-remove $PACKAGE_LIST_BOARD_REMOVE" >> "${DEST}"/debug/install.log
 	fi
 
 	# install u-boot
@@ -263,9 +263,9 @@ install_common()
 		VER=$(chroot "${SDCARD}" /bin/bash -c "apt-cache --names-only search ^linux-image-${BRANCH}-${LINUXFAMILY} | awk '{print \$(NF)}'")
 		VER="${VER/-$LINUXFAMILY/}"
 		display_alert "Installing from repository" "linux-image-${BRANCH}-${LINUXFAMILY} $VER"
-		chroot "${SDCARD}" /bin/bash -c "apt -y -qq install linux-image-${BRANCH}-${LINUXFAMILY}" >> "${DEST}"/debug/install.log 2>&1
+		chroot "${SDCARD}" /bin/bash -c "apt-get -y -qq install linux-image-${BRANCH}-${LINUXFAMILY}" >> "${DEST}"/debug/install.log 2>&1
 		display_alert "Installing from repository" "linux-dtb-${BRANCH}-${LINUXFAMILY}"
-		chroot "${SDCARD}" /bin/bash -c "apt -y -qq install linux-dtb-${BRANCH}-${LINUXFAMILY}" >> "${DEST}"/debug/install.log 2>&1
+		chroot "${SDCARD}" /bin/bash -c "apt-get -y -qq install linux-dtb-${BRANCH}-${LINUXFAMILY}" >> "${DEST}"/debug/install.log 2>&1
 		if [[ $INSTALL_HEADERS == yes ]]; then
 			display_alert "Installing from repository" "armbian-headers"
 			chroot "${SDCARD}" /bin/bash -c "apt-get -y -qq install linux-headers-${BRANCH}-${LINUXFAMILY}" >> "${DEST}"/debug/install.log 2>&1
@@ -277,7 +277,7 @@ install_common()
 		install_deb_chroot "${DEB_STORAGE}/$RELEASE/${CHOSEN_ROOTFS}_${REVISION}_${ARCH}.deb" >> "${DEST}"/debug/install.log 2>&1
 	else
 		display_alert "Installing from repository" "${CHOSEN_ROOTFS}"
-		chroot "${SDCARD}" /bin/bash -c "apt -y -qq install ${CHOSEN_ROOTFS}" >> "${DEST}"/debug/install.log 2>&1
+		chroot "${SDCARD}" /bin/bash -c "apt-get -y -qq install ${CHOSEN_ROOTFS}" >> "${DEST}"/debug/install.log 2>&1
 	fi
 
 	# install armbian-desktop
@@ -303,7 +303,7 @@ install_common()
 		fi
 	else
 		display_alert "Installing from repository" "armbian-firmware"
-		chroot "${SDCARD}" /bin/bash -c "apt -y -qq install armbian-firmware" >> "${DEST}"/debug/install.log 2>&1
+		chroot "${SDCARD}" /bin/bash -c "apt-get -y -qq install armbian-firmware" >> "${DEST}"/debug/install.log 2>&1
 	fi
 
 	# install armbian-config
@@ -314,7 +314,7 @@ install_common()
 	else
 		if [[ $BUILD_MINIMAL != yes ]]; then
 			display_alert "Installing from repository" "armbian-config"
-			chroot "${SDCARD}" /bin/bash -c "apt -y -qq install armbian-config" >> "${DEST}"/debug/install.log 2>&1
+			chroot "${SDCARD}" /bin/bash -c "apt-get -y -qq install armbian-config" >> "${DEST}"/debug/install.log 2>&1
 		fi
 	fi
 
@@ -325,7 +325,7 @@ install_common()
 
 	# install wireguard tools
 	if [[ $WIREGUARD == yes ]]; then
-		chroot "${SDCARD}" /bin/bash -c "apt -y -qq install wireguard-tools --no-install-recommends" >> "${DEST}"/debug/install.log 2>&1
+		chroot "${SDCARD}" /bin/bash -c "apt-get -y -qq install wireguard-tools --no-install-recommends" >> "${DEST}"/debug/install.log 2>&1
 	fi
 
 	# freeze armbian packages
diff --git a/lib/image-helpers.sh b/lib/image-helpers.sh
index 96f8746af5..2e75010238 100644
--- a/lib/image-helpers.sh
+++ b/lib/image-helpers.sh
@@ -128,6 +128,6 @@ install_deb_chroot()
 	[[ ! -f "${SDCARD}/root/${name}" ]] && cp "${package}" "${SDCARD}/root/${name}"
 	display_alert "Installing" "$name"
 	[[ $NO_APT_CACHER != yes ]] && local apt_extra="-o Acquire::http::Proxy=\"http://${APT_PROXY_ADDR:-localhost:3142}\" -o Acquire::http::Proxy::localhost=\"DIRECT\""
-	LC_ALL=C LANG=C chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt -yqq \
+	LC_ALL=C LANG=C chroot "${SDCARD}" /bin/bash -c "DEBIAN_FRONTEND=noninteractive apt-get -yqq \
 		$apt_extra --no-install-recommends install ./root/$name" >> "${DEST}"/debug/install.log 2>&1
 }