CentOS6.5下安装iRedMail中需要解决的问题

　　iRedMail是个专门用于Redhat/CentOS下的企业Mail服务集成安装软件包，本来只要有干净的系统就可以轻松安装，无奈国内网络状况和墙头众多，安装中也有很多问题需要解决，下面记录的都是我安装之中所遇到问题，特记录下来备忘。

1，首先要替换系统的yum源到国内的镜像源，否则用yum安装软件太痛苦了，我用的是163的yum源服务，参见CentOS YUM 国内镜像 。

2，不要安装php，apache之类的软件，保持系统尽量干净，iRedMail安装过程中会自动下载并安装所需软件包，否则版本不对还造成麻烦，辛辛苦苦的设置也会被覆盖掉！

3，iRedMail.org不明原因被墙，幸亏有了国内镜像服务，所以要访问iredmail.com下载安装包。

4，iRedMail安装包解开后，pkgs/get_all.sh这个脚本中都是指向iredmail.org，使用编辑器全部替换为iredmail.com。然后在执行这个脚本。

5，执行主目录下的iRedMail.sh时，根据我的经验不可能一次执行成功，主要有三个问题引起：

　　1)访问国外网站不够快，造成超时报错，重复执行脚本即可，安装脚本会从上次断点开始执行（万幸有此功能！）

　　2)脚本执行中可能回报YUM BaseUrl之类的错误，需要编辑/etc/yum.repos.d/CentOS_Base.repo，将文件里面的“$releasever”全部替换为“6”。（注：不包括引号，6就是系统的主版本）

[[email protected] iRedMail-0.8.7]# cat /etc/yum.repos.d/CentOS-Base.repo
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base - 163.com
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
#gpgcheck=1
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#
##released updates
#[updates]
#name=CentOS-$releasever - Updates - 163.com
#baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
##mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
#gpgcheck=1
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#
##additional packages that may be useful
#[extras]
#name=CentOS-$releasever - Extras - 163.com
#baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
##mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
#gpgcheck=1
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#
##additional packages that extend functionality of existing packages
#[centosplus]
#name=CentOS-$releasever - Plus - 163.com
#baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
##mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
#gpgcheck=1
#enabled=0
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#
##contrib - packages by Centos Users
#[contrib]
#name=CentOS-$releasever - Contrib - 163.com
#baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
##mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
#gpgcheck=1
#enabled=0
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

　　3)iRedMail.sh脚本还会安装一个epel.repo,里面启用了几个镜像列表设置，这可能也会导致报错，打开此文件，取消baseurl前面的注释，然后注释掉mirrorlist这一行。

[[email protected] iRedMail-0.8.7]# cat /etc/yum.repos.d/epel.repo
[epel]
name=Extra Packages for Enterprise Linux 6 - $basearch
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=0