Re:Xen "Just Works" (I know. I use it every day) (Score 1)

In my environment, I'm only virtualizing Linux, so I can use regular x86 CPUs dating back to 1998 for Xen. The only exception is the deployment of Zimbra I'm going to do. It requires Redhat Enterprise Linux 4 and NPTL, so I can't run it paravirtualized, it must run HVM which requires the special processors. However, who today isn't getting new hardware with HVM support?

I just recently embarked to get Zimbra 4.5.* installed on a CentOS 4.5 virtual server. It is indeed possible. Below are my (crude) notes.

zimbra install on centos:

1. be sure using NPTL
2. be sure the following are installed
   • yum install sudo curl libidn fetchmail gmp compat-libstdc++-296 compat-libstdc++-33 vixie-cron file
3. disable exim which is pulled in by fetchmail automatically
   • chkconfig --level 2345 exim off
4. run the zcs installer and answer Y for most everything
5. after installing zimbra, comment out the "Defaults requiretty" in /etc/sudoers to get the queue listings to show up in the admin web page (and stop the error)
   • visudo
6. be sure crond service is running...
   • /etc/init.d/crond start
   • chkconfig --add crond
   • chkconfig --list crond