I Use Centos5 as my Linux system operation. Default mono-core installed in centos is mono-core-1.2.4-2.el5.centos. This version is to old and I want to install or upgrade mono. This is a method how to install or upgrade mono in Centos5.

• Create a new repo config file. vim /etc/yum.repos.d/mono.repo and add the following text :

• Save this file and update repo list with command : yum clean all
• install the mono server stack with command : yum install monotools-addon-server
• set up shell environtment so that it finds mono, mcs and the other mono tools. Use this command : cp /opt/novell/mono/bin/mono-addon-environtment.sh /etc/profile.d
• edit file /etc/profile.d/mono-addon-environtment.sh and change this line PS1=”[mono-addon] $PS1″ with #PS1=”[mono-addon] $PS1″
• Log off your computer and after login again, check mono version with this command : mono –version. This is output from my computer :

• Now, you can install new version of mono addon. Example, I want to install mono-gdi, So I use command : yum install mono-addon-libgdiplus0

Source :

http://stackoverflow.com/questions/3510320/install-mono-on-centos5-5-using-yum