add cmdline patch

defaults/main.yml

@@ -33,6 +33,11 @@ homeassistant_open_ports:
       -A INPUT -m state --state NEW -p tcp --dport {{ homeassistant_http_bind_port }} -j ACCEPT
     state: present
 
+# override /boot/cmdline.txt with new content
+# this can be necessary if you use searial hardware
+# be careful! wrong config can make your system unusable!
+# homeassistant_cmdline_content: "console=tty1 root=/dev/mmcblk0p3 rootfstype=ext4 elevator=deadline rootwait"
+
 homeassistant_nginx_vhost_enabled: False
 homeassistant_nginx_server: localhost
 homeassistant_nginx_vhost_dir: /etc/nginx/sites-available

tasks/install.yml

@@ -35,6 +35,12 @@
   become_user: "{{ homeassistant_user }}"
 
 - block:
+    - name: Patch /boot/cmdline
+      copy:
+        content: "{{ homeassistant_cmdline_content }}"
+        dest: /boot/cmdline.txt
+      when: homeassistant_cmdline_content is defined
+
     - name: Copy systemd unit file
       template:
         src: "etc/systemd/system/homeassistant.service.j2"