sync armbian env

lib/functions/rootfs/apt-install.sh

@@ -103,7 +103,7 @@ function install_deb_chroot() {
 	declare -g if_error_detail_message="Installation of $install_target failed ${BOARD} ${RELEASE} ${BUILD_DESKTOP} ${LINUXFAMILY}"
 	declare -a extra_apt_envs=()
 	extra_apt_envs+=("ARMBIAN_IMAGE_BUILD_BOOTFS_TYPE=${BOOTFS_TYPE:-"unset"}")                             # used by package postinst scripts to bevahe
-	DONT_MAINTAIN_APT_CACHE="yes" chroot_sdcard_apt_get --no-install-recommends install "${install_target}" # don't auto-maintain apt cache when installing from packages.
+	DONT_MAINTAIN_APT_CACHE="yes" chroot_sdcard_apt_get --allow-downgrades --no-install-recommends install "${install_target}" # don't auto-maintain apt cache when installing from packages.
 	unset extra_apt_envs
 
 	# IMPORTANT! Do not use short-circuit above as last statement in a function, since it determines the result of the function.

lib/functions/rootfs/rootfs-create.sh

@@ -194,9 +194,12 @@ function create_new_rootfs_cache_via_debootstrap() {
 	fi
 
 	# stage: check md5 sum of installed packages. Just in case. @TODO: rpardini: this should also be done when a cache is used, not only when it is created
-	display_alert "Checking MD5 sum of installed packages" "debsums" "info"
-	declare -g if_error_detail_message="Check MD5 sum of installed packages failed"
-	chroot_sdcard debsums --silent
+	# lets check only for supported targets only unless forced
+	if [[ "x${DISTRIBUTION_STATUS}" == "supported" || "${FORCE_CHECK_MD5_PACKAGES:-"no"}" == "yes" ]]; then
+		display_alert "Checking MD5 sum of installed packages" "debsums" "info"
+		declare -g if_error_detail_message="Check MD5 sum of installed packages failed"
+		chroot_sdcard debsums --silent
+	fi
 
 	# # Remove packages from packages.uninstall
 	# # @TODO: aggregation.py handling of this... if we wanted it removed in rootfs cache, why did we install it in the first place?