Update docs for Java 11 (#234)
* Updated these docs for Java 11
* Add docs for 18.04
diff --git a/README.md b/README.md
index 741e6ad..d424de1 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,7 @@
environment :
* [Ubuntu 16.04](/docs/ubuntu1604.md)
+ * [Ubuntu 18.04](/docs/ubuntu1804.md)
* [CentOS 7](/docs/centos7.md)
## Quickstart
diff --git a/docs/centos7.md b/docs/centos7.md
index 8f18896..306a3bc 100644
--- a/docs/centos7.md
+++ b/docs/centos7.md
@@ -3,7 +3,7 @@
```bash
#install stuff
-sudo yum install java-1.8.0-openjdk maven git openssh-server wget perl-Digest-SHA
+sudo yum install java-11-openjdk maven git openssh-server wget perl-Digest-SHA
sudo yum group install "Development Tools"
#setup passwordless ssh
@@ -13,7 +13,7 @@
chmod 0600 ~/.ssh/authorized_keys
#add java home to your env by appending this line to ~/.bashrc
-export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk
+export JAVA_HOME=/usr/lib/jvm/java-11-openjdk
#optional: set OS limits - requires restart
cat <<EOF | sudo tee -a /etc/security/limits.conf > /dev/null
diff --git a/docs/ubuntu1804.md b/docs/ubuntu1804.md
new file mode 100644
index 0000000..425cd4a
--- /dev/null
+++ b/docs/ubuntu1804.md
@@ -0,0 +1,31 @@
+Ubuntu 18.04 prep
+-----------------
+
+The following commands are one possible way to quickly prepare an instance of
+Ubuntu 18.04 for Uno.
+
+```bash
+#install stuff
+sudo apt install openjdk-11-jdk maven git openssh-server wget libxml2-utils make g++
+
+#setup passwordless ssh
+ssh-keygen -t rsa -N '' -f ~/.ssh/id_rsa
+ssh-keyscan -H localhost >> ~/.ssh/known_hosts
+cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
+
+#add java home before interactive section, will take effect on shell restart
+#this may not work properly in your environment, looks for phrase in stock ubuntu .bashrc
+sed -i '/# for examples/a export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64' ~/.bashrc
+
+#set java home in current shell
+export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
+
+# Optional: set OS limits. Could do this with an editor. Could replace * with user running Uno.
+cat <<EOF | sudo tee -a /etc/security/limits.conf > /dev/null
+* hard nproc 65536
+* soft nproc 65536
+* hard nofile 65536
+* soft nofile 65536
+EOF
+
+```
