v9.7

- DietPi-Installer | Do complete Armbian base-files downgrade, if required

.build/images/dietpi-installer

@@ -1052,8 +1052,16 @@ setenv rootuuid "true"' /boot/boot.cmd
 			# Remove obsolete lists
 			find /etc/apt/sources.list.d -mindepth 1 ! -name 'dietpi.list' -exec rm -v {} +
 
-			# Armbian base images: Downgrade base-files package to the version provided by Debian
-			dpkg --compare-versions "$(dpkg-query -Wf '${Version}' base-files)" gt 20 && G_EXEC eval 'echo '\''APT::Get::Allow-Downgrades "1";'\'' > /etc/apt/apt.conf.d/dietpi-armbian'
+			if dpkg --compare-versions "$(dpkg-query -Wf '${Version}' base-files)" gt 20
+			then
+				G_DIETPI-NOTIFY 2 'Enforcing downgrade of Armbian'\''s base-files package to Debian'\''s'
+				cat << '_EOF_' > /etc/apt/preferences.d/dietpi-armbian-tmp
+Package: base-files
+Pin: release o=Debian
+Pin-Priority: 1000
+_EOF_
+				G_EXEC eval 'echo '\''APT::Get::Allow-Downgrades "1";'\'' > /etc/apt/apt.conf.d/dietpi-armbian'
+			fi
 
 			# Select kernel, device tree and U-Boot packages
 			local model='odroidn2' kernel='meson64' arch='arm64' branch='current' zstd=()