add first working meta-layer

recipes-diya/diya-overlay/files/boot-to-recovery

@@ -0,0 +1,21 @@
+#! /bin/sh
+
+if [[ $(/usr/bin/id -u) -ne 0 ]]; then
+    echo "$0 shall be run as root"
+    exit 1
+fi
+
+. /etc/profile
+
+if [ ! -e /boot/config.txt ]; then
+    # prepare env for recovery boot
+    cat << EOF > /boot/config.txt
+recovery=true
+recovery_image=recovery-${MACHINE}.cpio.gz
+EOF
+else
+    sed -i 's/^.*recovery.*/recovery=true/g' /boot/config.txt || \
+                echo "recovery=true" >> /boot/config.txt
+fi
+echo "Rebooting to recovery mode"
+reboot