Merge branch 'current' into next

source/_docs/ecosystem/certificates/lets_encrypt.markdown

@@ -247,7 +247,7 @@ $ sudo adduser hass sudo
 If you did not already log in as the user that currently runs Home Assistant, change to that user (usually `hass` or `homeassistant` - you may have used a command similar to this in the past):
 
 ```bash
-$ su -s /bin/bash hass 
+$ sudo su -s /bin/bash hass 
 ```
 
 Make sure you are in the home directory for the HA user:

source/_docs/installation/armbian.markdown

@@ -21,5 +21,5 @@ $ sudo apt-get install python3-dev python3-pip
 Install Home Assistant.
 
 ```bash
-$ pip3 install homeassistant
+$ sudo pip3 install homeassistant
 ```

source/_docs/installation/fedora.markdown

@@ -14,7 +14,7 @@ footer: true
 Install the development package of Python.
 
 ```bash
-$ sudo dnf -y install python3-devel
+$ sudo dnf -y install python3-devel redhat-rpm-config
 ```
 
 and Home Assistant itself.
@@ -27,7 +27,6 @@ To isolate the Home Assistant installation a [venv](https://docs.python.org/3/li
 
 ```bash
 $ sudo mkdir -p /opt/homeassistant
-$ cd /opt/homeassistant
 ```
 Now switch to the new directory, setup the venv, and activate it.
 
@@ -40,7 +39,7 @@ $ source bin/activate
 Install Home Assistant itself.
 
 ```bash
-$ pip3 install homeassistant
+$ pip3 install homeassistant colorlog
 ```
 
-Check the [autostart](/docs/autostart/systemd/) section in the documentation for further details. 
+Check the [autostart](/docs/autostart/systemd/) section in the documentation for further details and the [Firewall section](/docs/installation/troubleshooting/#no-access-to-the-frontend) if you want to access your Home Assistant installation.