Install an Agent Manually Print

Firstly we need to sort the R1Soft repo out:
nano -w /etc/yum.repos.d/r1soft.repo

With the following:

[r1soft]
name=R1Soft Repository Server
baseurl=http://repo.r1soft.com/yum/stable/$basearch/
enabled=1
gpgcheck=0

Time to install the R1Soft Agent software:
yum install serverbackup-agent -y

If you get the the following message:

No binary module was found for your kernel. The kernel headers will be required 
to build a module. 

Do the following:
rpm -i http://patches.kernelcare.com/kernelcare-latest.el6.x86_64.rpm

Then grab the module:
serverbackup-setup --get-module

If you still get an error about the kernel run:
yum install kernel-devel-$(uname -r) -y

Then grab the module:
serverbackup-setup --get-module

After you've got the module installed you need to re-start the new driver:
/etc/init.d/cdp-agent restart