Passenger installation failing on centos 7, please suggest on how to fix this?

Question

I am trying to setup passenger to puppet master on centos7. For that, I ran below commands.

sudo yum -y install httpd httpd-devel mod_ssl ruby-devel rubygems gcc gcc-c++ libcurl-devel openssl-devel

THen, I ran below comand:

sudo gem install rack passenger
ERROR:  Error installing rack:
        rack requires Ruby version >= 2.3.0.
ERROR:  Error installing passenger:
        rake requires Ruby version >= 2.2.

But, I am getting this error.

ruby -v
ruby 1.8.7 (2013-06-27 patchlevel 374) [x86_64-linux]

WHat should I do now?

sudo yum update ruby
Loaded plugins: fastestmirror
Setting up Update Process
Loading mirror speeds from cached hostfile
 * base: centos.excellmedia.net
 * extras: centos.excellmedia.net
 * updates: centos.excellmedia.net
No Packages marked for Update

sudo yum update ruby-devel
Loaded plugins: fastestmirror
Setting up Update Process
Loading mirror speeds from cached hostfile
 * base: centos.excellmedia.net
 * extras: centos.excellmedia.net
 * updates: centos.excellmedia.net
No Packages marked for Update

same issue with centos7 and centos 6.5

cat /etc/centos-release
CentOS Linux release 7.4.1708 (Core)

cat /etc/system-release
CentOS release 6.5 (Final)

Please suggest.

Answer 1

It seems default ruby in centos is very old. You might need to install from source. BTW, please consider using rubys manager like rbenv or rvm.