| % |
| % Describe The CentOS Distribution Release Schema. |
| % |
| \documentclass{article} |
| |
| \usepackage{hyperref} |
| |
| \title{The CentOS Release Brand} |
| \author{Alain Reguera Delgado} |
| |
| \begin{document} |
| |
| \maketitle |
| |
| \begin{abstract} |
| This is abstract. |
| \end{abstract} |
| |
| \tableofcontents |
| |
| \section{Introduction} |
| |
| The upstream vendor has released 3 versions of Enterprise Linux that |
| CentOS Project rebuilds the freely available SRPMS for\footnote{ |
| \url{http://wiki.centos.org/About}}. So, the major CentOS releases are |
| CentOS 3, CentOS 4 and CentOS 5. The upstream vendor releases security |
| updates as required by circumstances. CentOS Project releases rebuilds |
| of security updates as soon as possible. Usually within 24 hours (our |
| stated goal is with 72 hours, but we are usually much faster). |
| |
| The upstream vendor also releases numbered update sets for Version 3, |
| Version 4 and Version 5 of their product (i.e. EL 3 update 9, EL 4 |
| update 6 and EL 5 update 1) 2 to 4 times per year. There are new ISOs |
| from the upstream vendor provided for these update sets. Update sets |
| will be completed as soon as possible after the vendor releases their |
| version\ldots generally within 2 weeks. CentOS Project follows these |
| conventions as well, so CentOS 3.9 correlates with EL 3 update 9 and |
| CentOS 4.6 correlates with EL 4 update 6, CentOS 5.1 correlates to EL |
| 5 update 1, etc. |
| |
| One thing some people have problems understanding is that if you have |
| any CentOS-3 product and update it, you will be updated to the latest |
| CentOS-3.x version. The same is true for CentOS-4 and CentOS 5. If you |
| update any CentOS-4 product, you will be updated to the latest |
| CentOS-4.x version, or to the latest CentOS 5.x version if you are |
| updating a CentOS 5 system. This is exactly the same behavior as the |
| upstream product. Let's assume that the latest EL4 product is update |
| 6. If you install the upstream original EL4 CDs (the ones before any |
| update set) and upgrade via their up2date, you will have latest update |
| set installed (EL4 update 6 in our example). |
| |
| Since all updates within a major release (CentOS 3, CentOS 4, CentOS |
| 5) always upgrade to the latest version when updates are performed |
| (thus mimicking upstream behavior), only the latest version is |
| maintained in each main tree on the CentOS |
| Mirrors\footnote{\url{http://mirrors.centos.org/}}. |
| |
| There is a CentOS Vault\footnote{\url{http://vault.centos.org/}} |
| containing old CentOS trees. This vault is a picture of the older tree |
| when it was removed from the main tree, and does not receive updates. |
| It should only be used for reference. |
| |
| \section{Workplace} |
| |
| \begin{itemize} |
| \item SVN:trunk/Identity/Logos/svg/type/2c-tmr.svg |
| \item SVN:trunk/Identity/Logos/svg/type/build/tmr3.svg |
| \item SVN:trunk/Identity/Logos/svg/type/build/tmr4.svg |
| \item SVN:trunk/Identity/Logos/svg/type/build/tmr5.svg |
| \end{itemize} |
| |
| \section{Design} |
| |
| It is very important that people differentiate which is the major |
| release of CentOS Distribution they are using. To achive this, we use |
| a special brand called \textit{The Release Brand} of CentOS |
| Distribution. |
| |
| There is one Release Brand for each Major Release of CentOS |
| Distribution. The Release Brand of CentOS Distribution is placed on |
| images controlling the CentOS Distribution Visual Style. |
| |
| The Release Brand of CentOS Distribution is built using two |
| components: 1. The CentOS Trademark, 2. The Major Release Number of |
| CentOS Distribution. |
| |
| The height of the Release Number is twice the CentOS Trademark height |
| and it is placed on the right side of CentOS Trademark, both bottom |
| aligned. |
| |
| Sometimes The CentOS Message can be added as third component to The |
| Release Brand. In these cases The CentOS Message remains on English |
| language, it is not translated. Because of this, The Release Brand |
| that includes The CentOS Message should be avoided or used in places |
| where there is no posibility for the user to select a different |
| language but English. Examples of these kind of images are Anaconda |
| Prompt and GRUB. |
| |
| \section{Rendering} |
| |
| \end{document} |
| |