配置新linux系统

一、配置yum源
1.卸载现有的yum，检查自带的yum
[root@localhost ~]# rpm -qa | grep yum
yum-langpacks-0.4.2-7.el7.noarch
yum-3.4.3-150.el7.noarch
yum-rhn-plugin-2.0.1-6.el7.noarch
yum-utils-1.1.31-40.el7.noarch
yum-metadata-parser-1.1.4-10.el7.x86_64

2.卸载自带yum
[root@localhost ~]# rpm -e yum-langpacks-0.4.2-7.el7.noarch --nodeps
warning: /etc/yum/pluginconf.d/langpacks.conf saved as /etc/yum/pluginconf.d/langpacks.conf.rpmsave
[root@localhost ~]# rpm -e yum-3.4.3-150.el7.noarch --nodeps
[root@localhost ~]# rpm -e yum-rhn-plugin-2.0.1-6.el7.noarch --nodeps
[root@localhost ~]# rpm -e yum-utils-1.1.31-40.el7.noarch --nodeps
[root@localhost ~]# rpm -e yum-metadata-parser-1.1.4-10.el7.x86_64 --nodeps

3.重新下载
[root@localhost yum]# wget http://vault.centos.org/centos/7.3.1611/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-40.el7.noarch.rpm
[root@localhost yum]# wget http://vault.centos.org//centos/7.3.1611/os/x86_64/Packages/yum-updateonboot-1.1.31-40.el7.noarch.rpm
[root@localhost yum]# wget http://vault.centos.org/centos/7.3.1611/os/x86_64/Packages/yum-utils-1.1.31-40.el7.noarch.rpm
[root@localhost yum]# wget http://vault.centos.org/centos/7.3.1611/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
[root@localhost yum]# wget http://vault.centos.org/centos/7.3.1611/os/x86_64/Packages/yum-3.4.3-150.el7.centos.noarch.rpm

4.rpm安装
[root@localhost yum]# rpm -ivh yum-*
warning: yum-3.4.3-150.el7.centos.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:yum-metadata-parser-1.1.4-10.el7 ################################# [ 20%]
2:yum-plugin-fastestmirror-1.1.31-4################################# [ 40%]
3:yum-3.4.3-150.el7.centos ################################# [ 60%]
4:yum-updateonboot-1.1.31-40.el7 ################################# [ 80%]
5:yum-utils-1.1.31-40.el7 ################################# [100%]

5.配置repo

[root@localhost yum]# vim /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-$7 - Base - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7&arch=$basearch&repo=os
baseurl=http://mirrors.163.com/centos/7/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-$7 - Updates - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7&arch=$basearch&repo=updates
baseurl=http://mirrors.163.com/centos/7/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$7 - Extras - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7&arch=$basearch&repo=extras
baseurl=http://mirrors.163.com/centos/7/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$7 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/7/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

6.清除缓存
[root@linuxidc ~]# yum clean all
Loaded plugins: fastestmirror, product-id, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Cleaning repos: base extras updates
Cleaning up everything

7.测试安装是否正常
yum -y install lftp

Installed:
  lftp.x86_64 0:4.4.8-8.el7_3.2                                         
  Complete! 

二、安装gcc
yum -y install gcc

三、安装readline-devel和zlib
yum -y install -y readline-devel
yum -y install zlib-devel

RedHat 7 关闭防火墙： systemctl stop firewalld.service

错误：

1.error：could not find m4 that supports 下载：http://ftp.gnu.org/gnu/m4

2.make: pg_config: Command not found 执行：yum install postgresql-devel

3.error: could not open extension control file "/usr/local/pgsql/share/extension/file_fdw.control": no such file or directory
cd /usr/local/pgsql/contrib/file_fdw make&&make install