Update xo_install.sh

Per issue https://github.com/Jarli01/xenorchestra_installer/issues/52 Debian 9.9.0 (and up presumably) is lacking a required dependency to make this work. 

Tested locally.

README.md

@@ -16,6 +16,10 @@ If you don't want NFS capabilities run ```sudo apt-get remove nfs-common```.
 * Do not use LAMP
 * SSH Access is optional, but highly recommended
 
+# Problems?
+
+Check out our [Troubleshooting Page](https://github.com/Jarli01/xenorchestra_installer/blob/master/TROUBLESHOOTING.md)!
+
 # Goals/Backstory for this script
 
 I'm often asked "why can't this be run on CentOS or Fedora" to which my only reply is and has ever been: The goal was to be the XCP-ng of XS. Which means I wanted a solution that offered as much as XOA offers, while using what is available freely and from open sources. Without restrictions. 

TROUBLESHOOTING.md

@@ -1,6 +1,16 @@
-If you are having issues before you create an issue please check the following. (We'll be asking you to look at and provide this information anyways)
+# Troubleshooting
 
-# XO Website not loading
+If you are having problems, before you create an issue, please check the following. (You will be asked to provide this information anyways)
+
+## Submitting a Support Request
+
+Any issues, questions, or bugs during installation and usage of this script, that can not be solved by the steps below, should **first** be addressed in *this repository.* 
+
+Xen-Orchestra (Community Edition) is not obligated to support scripted (or manual) builds. Please give us the ability to first troubleshoot the issue and/or verify this script is not the culprit before moving on to posting in the Xen-Orchestra [Community Forums](https://xen-orchestra.com/forum/).
+
+Please use the [ISSUE TEMPLATE](https://github.com/Jarli01/xenorchestra_installer/issues/new) when submitting an issue.
+
+## XO Website not loading
 
 If the XO website fails to load please run the below command to determine if the primary service is running. 
 
@@ -19,7 +29,7 @@ If the XO website fails to load please run the below command to determine if the
 	   CGroup: /system.slice/xo-server.service
 			   └─710 /usr/local/bin/node ./bin/xo-server
        
-# XO not updating or you're stuck on a specific version.     
+## XO not updating or you're stuck on a specific version.     
        
 If you ever get stuck on a specific revision of XO, or are receiving an alert saying "Please tell us who you are" from git you need to run the below:
 
@@ -28,13 +38,13 @@ If you ever get stuck on a specific revision of XO, or are receiving an alert sa
       
 Provide your name and email address in the quoted sections, without quotes and once done try updating again. 
 
-# Checking the logs
+## Checking the logs
 
 This will check and continually update the last 50 log files for your XOCE installation and thus is subject to any specific issues you're encountering. Just keep this command at the ready to check on things if you need too. 
 
        journalctl -u xo-server -f -n 50
 
-# Required Dependencies 
+## Required Dependencies 
 
 Your system must be able to install the following list of dependencies, usually this is automatic but some distributions might not have the required repositories. Plese confirm you can install these before creating a ticket. 
 
@@ -52,7 +62,7 @@ Check your distribution respositories list ie: ```/etc/apt/sources.list``` for m
 
 These dependencies (on Ubuntu) are available from the ```multiverse``` and ```universe``` repositories. 
 
-# System Performance or General Errors Guidance
+## System Performance or General Errors Guidance
 
 While XOCE can and does operate without issue for many people there are benefits to using using more than the absolute minimum system specifications for the guest OS. 
 

xo_install.sh

@@ -14,30 +14,32 @@ xo_branch="master"
 xo_server="https://github.com/vatesfr/xen-orchestra"
 n_repo="https://raw.githubusercontent.com/visionmedia/n/master/bin/n"
 yarn_repo="deb https://dl.yarnpkg.com/debian/ stable main"
-node_source="https://deb.nodesource.com/setup_8.x"
 yarn_gpg="https://dl.yarnpkg.com/debian/pubkey.gpg"
 n_location="/usr/local/bin/n"
 xo_server_dir="/opt/xen-orchestra"
 systemd_service_dir="/lib/systemd/system"
 xo_service="xo-server.service"
 
-# Ensure that git and curl are installed
+# Ensures that Yarn dependencies are installed, git, curl, apt-transport-https
 /usr/bin/apt-get update
-/usr/bin/apt-get --yes install git curl
+/usr/bin/apt-get --yes install git curl apt-transport-https
 
-#Install node and yarn
+#Install yarn
 cd /opt
 
-/usr/bin/curl -sL $node_source | bash -
+                                       
 /usr/bin/curl -sS $yarn_gpg | apt-key add -
 echo "$yarn_repo" | tee /etc/apt/sources.list.d/yarn.list
 /usr/bin/apt-get update
-/usr/bin/apt-get install --yes nodejs yarn
+/usr/bin/apt-get install --yes yarn
 
 # Install n
 /usr/bin/curl -o $n_location $n_repo
 /bin/chmod +x $n_location
 
+# Install node via n
+n 8.16
+
 # Symlink node directories
 ln -s /usr/bin/node /usr/local/bin/node
 
@@ -46,8 +48,8 @@ ln -s /usr/bin/node /usr/local/bin/node
 
 /usr/bin/git clone -b $xo_branch $xo_server
 
-# Removing the "Built from Source - no support banner
-sed -i '225,235 d' /opt/xen-orchestra/packages/xo-web/src/xo-app/index.js
+# Disabling the "Built from Source Banner - No Support" Bar across the top of screen 
+sed -i 's/process.env.XOA_PLAN === 5/process.env.XOA_PLAN === 6/g' /opt/xen-orchestra/packages/xo-web/src/xo-app/index.js
 
 # Patch to allow config restore
 sed -i 's/< 5/> 0/g' /opt/xen-orchestra/packages/xo-web/src/xo-app/settings/config/index.js