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CLOUDLINUX INSTALLATION

1) Download the cloud linux auto installer from http://www.cloudlinux.com/downloads/index.php
For cpanel servers, use the following steps
a) For IP-based CloudLinux license
#  /usr/local/cpanel/cpkeyclt 
# /usr/local/cpanel/bin/cloudlinux_system_install -k
b) For license key based CloudLinux ( for getting key go to https://cln.cloudlinux.com/clweb/register.html and register )
wget http://repo.cloudlinux.com/cloudlinux/sources/cln/cpanel2cl
sh cpanel2cl -k $key
2) Now reboot your server into the Cloud linux kernel
root@kate ~]# uname -r
2.6.18-374.12.1.el5.lve0.8.54
It have few issues with the RAM memory so we need to install PAE kernel for the Cloud linux
yum install kernel-PAE-2.6.18-374.12.1.el5.lve0.8.54
after installing the Cloud linux kernel we  will get the kernel as
And reboot the server.

root@kate ~]# uname -r
2.6.18-374.12.1.el5.lve0.8.54PAE
Then Recompile apache using /scripts/easyapache
3) Install the lve cPanel modules and Plugin as follows,
yum  -y install cpanel-lve   cpanel-lvemanager
4) Compile apache and php with the following minimal requirements, - Make sure to use Apache 2.2.x version - Suexec must be enabled - Apache MPM will be Prefork, Worker or Event . Better to user preforker
5) Now go to WHM -> Plugins -> LVE Manager and monitor the use . You can set the limits per domain from here
6) Memory limit is disabled by default in cl5. Please check it and enable it by ( lvectl ubc status/enable/disable )

7) If the client provides us with the activation key to license clould linux which is already installed as trial version in the server, use the following command:
rhnreg_ks --activationkey=<key>--force
This will license the cloud linux installed.
8) to check if the server where we installed cloudlinux is licensed and is not in its trial period use the following:
- install a package named rhn-setup
 yum install rhn-setup
- use command "rhn_check". If this command does not yield any result, the server is licensed. If an error is obtained as output, its trial version.

Reference:

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