On 7 April 2012 16:34, Peter Penzov <peter.penzov at gmail.com> wrote: > I'm not interested in becoming a competitor in Red Hat's support businesses > I just want open source OS certified for installation by Oracle database > which I can custom modify. I'm not interested in any kernel code > modification or package source code modification. I just want to build > custom OS with just changed name and color. Maybe deployed on no more that > 20 servers. If you do this, your platform will not be certified by Oracle. You can try and submit a new certification but them accepting it, in my guess, would be an unlikely result. CentOS is not certified nor supported by Oracle either. In the end there is nothing stopping you to do what you have described but I question the value. I presume the servers you have will be used for production, not development. Especially with the Oracle licencing costs for ~20 servers, you better have supported platforms. Using CentOS+Oracle for development environments will mean your servers will not be supported by Oracle but at least you will have the support of the CentOS community for the OS. I wonder how much quicker you would be than the CentOS guys respond to updated packages and for how long you would be able to keep up with the service (which in both aspects the CentOS guys are excellent). The only Linux distributions supported by Oracle for Oracle database are RHEL, OEL, SUSE SLES and finally Asianux. None of the other RHEL derivatives are supported, neither Ubuntu (server or desktop variants, TLS or non-TLS) nor openSUSE. (See Metalink ID 1304727.1). By the way, the removing of logos etc. are to comply with trademark rules, not GPL.