My notes, things I have learned, and documentation I have created.

This one presented quite a challenge for me. It seems that the magical solution is using the right versions. There are a number of ways (supposedly) to install ruby on rails. I started out trying to use ruby packages included in CentOS. I quickly realized that was not going to work. It kept running all kinds of issues with libraries missing or incorrect versions. So then, I opted to just build from source. Well, this got me much closer but I ended up having an openssl issue that I thought I resolved, but the gem command was having all kinds of issues. Something clearly was not right. So, I then went back to using RVM, which I had tried earlier. This time I started completely over with a new HPCloud CentOS 5.6 image. The following is what worked for me.

As I mentioned above, I started with a clean HPCloud CEntOS 5.6 image ( ami-000004d2 – local (CentOS 5.6 Server 64-bit) ).

# yum groupinstall “Development Libraries” “Development Tools”

The next step, of course, turned my 5.6 instance into a 5.7 instance:
# yum update
# shutdown -r now

Add the EPEL repository:

# cd /usr/local/src
# wget http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm
# rpm -ivh epel-release-5-4.noarch.rpm
# yum install git

Remove certificate requirement for curl, when installing rvm:
# echo insecure >> ~/.curlrc

# bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer) # vigr ... rvm:x:500:root Update environment variables: # source /etc/profile.d/rvm.sh Install other dependencies for ruby determined by running rvm requirements:
# yum install -y gcc-c++ patch readline readline-devel zlib zlib-devel libyaml-devel libffi-devel openssl-devel make bzip2 autoconf automake libtool bison iconv-devel

# rvm install 1.9.2
# rvm use 1.9.2

Note: You can use the following command to make this version the system default:
# rvm use 1.9.2 –default

To verify that all is right at this point:
# type rvm | head -1
rvm is a function is the expected output.

# cd $(rvm gemdir)

The following will install the gem command:
# rvm rubygems current

This will allow you to install rails:
# gem install rails

This has allowed me (rails is not needed for this) to install hpcloud command to manage my Storage Object.

# wget http://build.hpcloud.com/sites/default/files/downloads/hpfog.tar
# tar -xvf hpfog.tar
# wget http://build.hpcloud.com/sites/default/files/downloads/hpcloud.tar
# tar -xvf hpcloud.tar
# gem install hpfog-x.x.x.gem
# gem install hpcloud-x.x.x.gem

# hpcloud
Tasks:
hpcloud account:setup # set up or modify your credentials
hpcloud acl