On 8.1.2011 19:34, Les Mikesell wrote:
There's no restriction in the GPL to prevent you from selling things. You just just can't prohibit the buyer/recipient from redistributing it under the GPL terms and you have to make source available. Some of the other licenses are different, but none prevent redistribution and none that I know of have terms that would prevent that redistribution being a sale.
Copyrighted artwork would have to be changed.
...snip You may not use the CentOS logos to distribute ISOs that have been modified. snap...
http://www.centos.org/modules/smartfaq/faq.php?faqid=49