将CentOS 4.4升级到4.8

Question

我是CentOS的新手，主要和FreeBSD合作过。

如何将CentOS从4.4版升级到4.8版？

更新

# yum upgrade

这个升级只是次要的，还是会升级到5.x？

Answer 1

从4.4升级到4.8是一个小的升级，这应该是相当直接的，只要使用yum，实际上，对于您的CentOS发行版附带的默认yum repos，它应该是开箱即用的yum upgrade。

对勇敢的灵魂来说，从4.4升级到5.x是一项比较困难的任务;)在启动这种升级之前，一定要用一个你并不真正需要的盒子来练习它。

Answer 2

以上链接中的http://wiki.centos.org/HowTos/MigrationGuide/ServerCD_4.4_至_5尝试:)

或者如果您有4.8dvd然后如下所示

Create a dvd.repo text file in /etc/yum.repos.d/ with the following content:

[dvd]
mediaid=1170972069.396645*
name=DVD for RHEL5
baseurl=file:///media/RHEL_5%20i386%20DVD/Server (For example for RHEL 5.5 version baseurl line should look like 'baseurl=file:///media/RHEL_5.5%20i386%20DVD/Serverenabled=1')
gpgcheck=0

For Red Hat Enterprise Linux 4.8
In /etc/sysconfig/rhn/sources, comment out the following line:
#up2date default

This line needs to be commented out otherwise up2date will keep on looking for information using the Red Hat Network first.

Next, in the same file, create a line like the following:

dir mydvdrepo /media/cdrom/RedHat/RPMS