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	<title>系统运维 &#187; CentOS 5.x</title>
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		<title>在线升级CentOS 4.x到CentOS 5.x最新版本</title>
		<link>https://www.osyunwei.com/archives/7750.html</link>
		<comments>https://www.osyunwei.com/archives/7750.html#comments</comments>
		<pubDate>Fri, 20 Jun 2014 03:08:39 +0000</pubDate>
		<dc:creator>qihang01</dc:creator>
				<category><![CDATA[CentOS]]></category>
		<category><![CDATA[CentOS 4.x]]></category>
		<category><![CDATA[CentOS 5.x]]></category>
		<category><![CDATA[CentOS升级]]></category>

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		<description><![CDATA[说明： 当前操作系统：CentOS 4.x 64位 实现目的： 通过yum命令在线升级CentOS 4.x到CentOS 5.x最新版本 一、升级CentOS 4.x到CentOS 4.9版本 cd /etc/yum.repos.d/  #进入目录 mv CentOS-Base.repo  CentOS-Base.repo-bak  #备份之前的文件 wget http://vault.centos.org/4.9/CentOS-Base.repo  #下载CentOS 4.9的yum源文件 yum clean all #清理之前缓存目录下的软件包 rm -f /var/lib/rpm/__db* #删除rpm包数据 rpm --rebuilddb #重建rpm包数据 yum -y update  #升级系统 二、升级CentOS 4.9到CentOS 5.x最新版（目前为CentOS 5.10） rpm -qa &#124; grep kernel  #查看系统当前内核，如下所示： ############################################# kernel-smp-2.6.9-89.EL kernel-devel-2.6.9-100.EL kernel-smp-devel-2.6.9-100.EL kernel-2.6.9-100.EL kernel-smp-2.6.9-100.EL kernel-2.6.9-89.EL kernel-devel-2.6.9-89.EL [...]<p><a rel="bookmark" href="https://www.osyunwei.com/archives/7750.html" target="_blank">查看全文</a></p>]]></description>
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