# HG changeset patch
# User Nattee Niparnan <nattee.n@chula.ac.th>
# Date 2022-04-24 15:52:30
# Node ID ccb0988a4eafd182c6e1d319d4a0b23b4c9f867a
# Parent  21c0ea2ca2c0e63b8eb0d4ffea3cacb9915aaa88

Update README.rdoc

diff --git a/README.rdoc b/README.rdoc
--- a/README.rdoc
+++ b/README.rdoc
@@ -25,7 +25,10 @@
     mysql> create database DATABASENAME;
     Query OK, 1 row affected (0.00 sec)
 
-    mysql> grant all privileges on DATABASENAME.* to USERNAME@localhost identified by 'PASSWORD';
+    mysql> create user USERNAME@localhost identified by 'PASSWORD';
+    Query OK, 0 rows affected, 1 warning (0.00 sec)
+
+    mysql> grant all privileges on DATABASENAME.* to USERNAME@localhost;
     Query OK, 0 rows affected, 1 warning (0.00 sec)
 
     mysql> flush privileges;
@@ -55,9 +58,14 @@
 
 === 3. Install necessary package and nodejs
 
+
 First, we install required package via apt.
 
-    cafe@grader:~$ sudo apt install libmysqlclient-dev default-jdk unzip php-cli apache2 dirmngr gnupg apache2-dev
+    cafe@grader:~$ sudo apt install git libmysqlclient-dev default-jdk unzip php-cli apache2 dirmngr gnupg apache2-dev
+
+Next, we need nodejs. Depends on your ubuntu version, the step to install correct version of nodejs differs.
+
+==== 3.1 Install nodejs on Ubuntu 18.04
 
 Since nodejs that comes with ubuntu 18.04 is very outdated, we need to install it manually. This follow the method outlined in https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-ubuntu-18-04 under *Installing Node.js with Apt Using a NodeSource PPA*
 
@@ -66,6 +74,9 @@
     sudo bash nodesource_setup.sh
     sudo apt install nodejs
 
+==== 3.2 Install nodejs on Ubuntu 20.04 or newer
+
+    cafe@grader:~$ sudo apt install nodejs
 
 === 4. Install cafe-grader
 
@@ -84,11 +95,11 @@
     cafe@grader:~$ wget https://github.com/cafe-grader-team/cafe-grader-judge-scripts/raw/master/installer/install.sh
     cafe@grader:~$ . ./install.sh
 
-After installation is finished, grader is ready to run in development mode via WEBrick. We will try that by the following command which will start a grader accessible via http://localhost:3000/. You can try logging in to the system and verify that it is actually work.
+After installation is finished, grader is ready to run in development mode via Puma. We will try that by the following command which will start a grader accessible via http://localhost:3000/. You can try logging in to the system and verify that it is actually work.
 
 cafe@grader:~/cafe_grader/web$ rails s
 
-If Everything is OK, stop the WEBrick by Ctrl-C.
+If Everything is OK, stop the Puma by Ctrl-C.
 
 We are almost done. The last step is to set up apache and Phusion so that cafe-grader is served by apache.