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CentOS

CentOS（Community Enterprise Operating System）是Linux发布版之一，它是来自于Red Hat Enterprise Linux依照开放源代码规定发布的源代码所编译而成。由于出自同样的源代码，因此有些要求高度稳定性的服务器以CentOS替代商业版的Red Hat Enterprise Linux使用。两者的不同，在于CentOS并不包含封闭源代码软件。CentOS 对上游代码的主要修改是为了移除不能自由使用的商标。[1]

处理器架构

CentOS有下列处理器平台的版本：
  • Intel x86及兼容架构（32位）
  • Intel Itanium（64位）（新版本不再支持）
  • x86-64 (AMD64和Intel 64，64位）
  • PowerPC G3及G4（测试版）（新版本不再支持）
  • IBM的eServer z系列及S/390大型主机（新版本不再支持）
另外有限度的支持两款旧型处理器：

版本

CentOS版本号有两个部份，一个主要版本和一个次要版本，主要和次要版本号分别对应于RHEL的主要版本与更新包，CentOS采取从RHEL的源代码包来构建。例如CentOS 4.4构建在RHEL 4.0的更新第4版。
自2006年中，CentOS 4.4版本开始（前身为RHEL 4.0更新第4版），Red Hat采用了和CentOS完全相同的版本约定，例如：Red Hat 4.5。

发布历史

数据源为 CentOS Wiki 及 Distrowatch CentOS 。
版本 平台 RHEL 版本 发布日期 RHEL 发布日期
2 i386 2.1 2004-05-14[2] 2002-05-17[3]
3.1 i386, x86_64, ia64, s390, s390x 3 2004-03-19[4] 2003-10-23[3]
3.4 - Server CD i386, x86_64, ia64, s390, s390x 3.4 2005-01-23 -
3.7 i386, x86_64, ia64, s390, s390x 3.7 2006-04-11[5] -
3.8 i386, x86_64 3.8 2006-08-25[6] 2006-07-20
3.9 i386, x86_64, ia64, s390, s390x 3.9 2007-07-26[7] 2007-06-15
4 i386, x86_64, various 4 2005-03-09[8] 2005-02-14[9]
4.6 i386, x86_64, ia64, alpha, s390, s390x, ppc (beta), sparc (beta) 4.6 2007-12-16[10] 2007-11-16[11]
4.7 i386, x86_64 4.7 2008-09-13[12] 2008-07-24[13]
4.7 - Server CD i386, x86_64 4.7 2008-10-17[14] -
4.8 i386, x86-64 4.8 2009-08-21[15] 2009-05-18[16]
4.9 i386, x86-64 4.9 2011-03-02[17] 2011-02-16[18]
5 i386, x86_64 5 2007-04-12[19] 2007-03-14[20]
5.1 i386, x86_64 5.1 2007-12-02[21] 2007-11-07[22]
5.1 - LiveCD i386 5.1 2008-02-18[23] -
5.2 i386, x86_64 5.2 2008-06-24[24] 2008-05-21[25]
5.2 - LiveCD i386 5.2 2008-07-17[26] -
5.3 i386, x86_64 5.3 2009-03-31[27] 2009-01-20[28]
5.3 - Live CD i386 5.3 2009-05-27[29] -
5.4 i386, x86_64 5.4 2009-10-21[30] 2009-09-02[31]
5.5 i386, x86_64 5.5 2010-05-14[32] 2010-03-31[33]
5.5 - LiveCD i386, x86-64 5.5 2010-05-14[32] -
5.6 i386, x86-64 5.6 2011-04-08[34] 2011-01-13[35]
5.7 i386, x86-64 5.7 2011-09-13[36] 2011-07-21[37]
5.8 i386, x86-64 5.8 2012-03-07[38] 2012-02-21[39]
5.9 i386, x86-64 5.9 2013-01-17[40]
5.10 i386, x86-64 5.10 2013-10-19[41]
6 i386, x86-64 6 2011-07-10[42] 2010-11-10[43]
6.0 - LiveCD i386, x86-64 6.0 2011-07-25[44] -
6.0 - LiveDVD i386, x86-64 6.0 2011-07-27[45] -
6.0 - MinimalCD i386, x86-64 6.0 2011-07-28[46] -
6.1 i386, x86-64 6.1 2011-12-09[47] 2011-05-19[48]
6.1 - LiveCD i386, x86-64 6.1 2011-12-09[49] -
6.1 - LiveDVD i386, x86-64 6.1 2011-12-09[50] -
6.1 - MinimalCD i386, x86-64 6.1 2011-12-09[51] -
6.2 i386, x86-64 6.2 2011-12-20[52] 2011-12-06[53]
6.2 - LiveCD i386, x86-64 6.2 2011-12-20[54] -
6.2 - LiveDVD i386, x86-64 6.2 2011-12-20[54] -
6.2 - MinimalCD i386, x86-64 6.2 2011-12-20[52] -
6.3 i386, x86-64 6.3 2012-07-09[55]
6.4 i386, x86-64 6.4 2013-03-09[56]
6.5 i386, x86-64 6.5 2013-12-01[57]
按照CentOS 5和6 RHEL的生命周期策略与上游供应商的改变也将支持为10年。

支持时程

发布版本 完整更新 维护更新
3 2006-07-20 2010-10-31
4 2009-03-31 2012-02-29
5 Q1 2014 2017-03-31
6 Q2 2017 2020-11-30
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