diff --git a/functions b/functions
index a8c2a98..329b89d 100644
--- a/functions
+++ b/functions
@@ -343,8 +343,6 @@ if [ "x$1" = "x--supported" ]; then
 	exit 1
 fi
 
-echo "machine is: $machine" >&2
-
 # kernel + initrd installation/upgrade mode, with optional version
 
 kvers="$1"
@@ -423,10 +421,8 @@ android_boot_device="$(get_machine_field "$machine" "Android-Boot-Device")" || :
 
 if [ -n "$dtb_append_from" ] ; then
     if linux-version compare "$kvers" ge "$dtb_append_from" ; then
-	echo "kernel $kvers requires dtb append (minimum is $dtb_append_from)" >&2
 	dtb_append="yes"
     else
-	echo "kernel $kvers does not require dtb append (minimum is $dtb_append_from)" >&2
 	dtb_append="no"
     fi
 fi
diff --git a/test_db b/test_db
index dd066d8..aec83f1 100755
--- a/test_db
+++ b/test_db
@@ -22,7 +22,7 @@
 MACHINE_DB="$(cat "${FK_CHECKOUT:-$FK_DIR}/db/"*.db)"
 
 test_no_unknown_fields() {
-    local expected='Android-Boot-Device Boot-Device Boot-DTB-Path Boot-Initrd-Path Boot-Kernel-Path Boot-Multi-Path Boot-Script-Path Bootloader-Sets-Root DTB-Append DTB-Id Kernel-Flavors Machine Machine-Id Method Mtd-Initrd Mtd-Kernel Optional-Packages Required-Packages U-Boot-Initrd-Address U-Boot-Kernel-Address U-Boot-Kernel-Entry-Point U-Boot-Multi-Address U-Boot-Script-Address U-Boot-Script-Name'
+    local expected='Android-Boot-Device Boot-Device Boot-DTB-Path Boot-Initrd-Path Boot-Kernel-Path Boot-Multi-Path Boot-Script-Path Bootloader-Sets-Root DTB-Append DTB-Append-From DTB-Id Kernel-Flavors Machine Machine-Id Method Mtd-Initrd Mtd-Kernel Optional-Packages Required-Packages U-Boot-Initrd-Address U-Boot-Kernel-Address U-Boot-Kernel-Entry-Point U-Boot-Multi-Address U-Boot-Script-Address U-Boot-Script-Name'
     expected="$(echo "$expected" | sed 's/ /\n/g' | sort -u | xargs)"
     local fields="$(echo "$MACHINE_DB" | sed -n '/^[^#]*:/s/:.*//p' | sort -u | xargs)"
     if [ "$fields" != "$expected" ]; then
