2010/11/11 Steve Thompson smt@vgersoft.com:
Having done several upgrades from CentOS 4 to CentOS 5, my recommendation would be to not even try it. There is all kinds of ugliness left over that has to be cleaned up; I did it in the end, but it took a lot longer than doing a clean install.
That's the point.
The cost to upgrade is probably higher than a clean installation.
It has changed so much between RHEL5 and RHEL6.
I recommend everyone a clean installation.
Best regards,
Morten