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centos换源+离线安装postgresql

Isuru Dewasure 系统架构 2022-5-11 19:34 7人围观

腾讯云服务器

centos换源+安装postgresql

http://mirror.nsc.liu.se/centos-store/8.2.2004/isos/x86_64/ 镜像安装网站

https://mirrors.edge.kernel.org/pub/software/scm/git/git-2.24.0.tar.xz git版本网站

1 更换阿里源

[ivanlee@localhost Desktop]$ cd /etc/yum.repos.d
[ivanlee@localhost yum.repos.d]$ ls
CentOS-AppStream.repo   CentOS-Devel.repo      CentOS-PowerTools.repo
CentOS-Base.repo        CentOS-Extras.repo     CentOS-Sources.repo
CentOS-centosplus.repo  CentOS-fasttrack.repo  CentOS-Vault.repo
CentOS-CR.repo          CentOS-HA.repo
CentOS-Debuginfo.repo   CentOS-Media.repo

首先全部删除源的所有文件,遇到所有的询问都是y

[root@localhost yum.repos.d]# rm *.repo

rm: remove regular file 'CentOS-AppStream.repo'? y

​			·························

安装新的阿里源

[root@localhost yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
--2022-03-22 13:53:56--  https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 139.227.225.136, 2408:8744:803:2:3::3fe, 2408:8744:803:2:3::3fd
Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|139.227.225.136|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2495 (2.4K) [application/octet-stream]
Saving to: ‘/etc/yum.repos.d/CentOS-Base.repo’

/etc/yum.repos.d/CentOS-Base.repo                 100%[==========================================================================================================>]   2.44K  --.-KB/s    in 0s      
2022-03-22 13:54:01 (60.0 MB/s) - ‘/etc/yum.repos.d/CentOS-Base.repo’ saved [2495/2495]
[root@localhost yum.repos.d]# yum makecache
CentOS-8.5.2111 - Base - mirrors.aliyun.com                                                                                                                          437 kB/s | 4.6 MB     00:10    
CentOS-8.5.2111 - Extras - mirrors.aliyun.com                                                                                                                        1.0 kB/s |  10 kB     00:10    
CentOS-8.5.2111 - AppStream - mirrors.aliyun.com                                                                                                                     739 kB/s | 8.4 MB     00:11    
Metadata cache created.

如果遇到无法解析网址的情况:

[root@localhost yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
--2022-05-07 15:42:13--  https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
Resolving mirrors.aliyun.com (mirrors.aliyun.com)... failed: Name or service not known.
wget: unable to resolve host address 'mirrors.aliyun.com'

那就对本地/etc/resolv.conf文件进行修改,添加如下字段

nameserver 8.8.8.8
nameserver 8.8.4.4

再继续就好了

手动安装pgsql

[root@localhost yum.repos.d]# dnf install https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm
Last metadata expiration check: 0:00:35 ago on Tue 22 Mar 2022 01:54:51 PM CST.
pgdg-redhat-repo-latest.noarch.rpm                                                                                                                                   2.0 kB/s |  13 kB     00:06    
Dependencies resolved.
=====================================================================================================================================================================================================
 Package                                              Architecture                               Version                                      Repository                                        Size
=====================================================================================================================================================================================================
Installing:
 pgdg-redhat-repo                                     noarch                                     42.0-24                                      @commandline                                      13 k

Transaction Summary
=====================================================================================================================================================================================================
Install  1 Package

Total size: 13 k
Installed size: 12 k
Is this ok [y/N]: y
Downloading Packages:
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                             1/1 
  Installing       : pgdg-redhat-repo-42.0-24.noarch                                                                                                                                             1/1 
  Verifying        : pgdg-redhat-repo-42.0-24.noarch                                                                                                                                             1/1 
Installed products updated.

Installed:
  pgdg-redhat-repo-42.0-24.noarch                                                                                                                                                                    

Complete!
[root@localhost yum.repos.d]# dnf module list postgresql
PostgreSQL common RPMs for RHEL / Rocky 8 - x86_64                                                                                                                    15  B/s | 195  B     00:12    
PostgreSQL common RPMs for RHEL / Rocky 8 - x86_64                                                                                                                   1.6 MB/s | 1.7 kB     00:00    
Importing GPG key 0x442DF0F8:
 Userid     : "PostgreSQL RPM Building Project <pgsql-pkg-yum@postgresql.org>"
 Fingerprint: 68C9 E2B9 1A37 D136 FE74 D176 1F16 D2E1 442D F0F8
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG
Is this ok [y/N]: y
PostgreSQL common RPMs for RHEL / Rocky 8 - x86_64                                                                                                                    30 kB/s | 619 kB     00:20    
PostgreSQL 14 for RHEL / Rocky 8 - x86_64                                                                                                                             15  B/s | 195  B     00:12    
PostgreSQL 14 for RHEL / Rocky 8 - x86_64                                                                                                                            1.6 MB/s | 1.7 kB     00:00    
Importing GPG key 0x442DF0F8:
 Userid     : "PostgreSQL RPM Building Project <pgsql-pkg-yum@postgresql.org>"
 Fingerprint: 68C9 E2B9 1A37 D136 FE74 D176 1F16 D2E1 442D F0F8
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG
Is this ok [y/N]: y
PostgreSQL 14 for RHEL / Rocky 8 - x86_64                                                                                                                             11 kB/s | 208 kB     00:19    
PostgreSQL 13 for RHEL / Rocky 8 - x86_64                                                                                                                             16  B/s | 195  B     00:12    
PostgreSQL 13 for RHEL / Rocky 8 - x86_64                                                                                                                            1.6 MB/s | 1.7 kB     00:00    
Importing GPG key 0x442DF0F8:
 Userid     : "PostgreSQL RPM Building Project <pgsql-pkg-yum@postgresql.org>"
 Fingerprint: 68C9 E2B9 1A37 D136 FE74 D176 1F16 D2E1 442D F0F8
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG
Is this ok [y/N]: y
PostgreSQL 13 for RHEL / Rocky 8 - x86_64                                                                                                                             26 kB/s | 526 kB     00:19    
PostgreSQL 12 for RHEL / Rocky 8 - x86_64                                                                                                                             15  B/s | 195  B     00:12    
PostgreSQL 12 for RHEL / Rocky 8 - x86_64                                                                                                                            1.6 MB/s | 1.7 kB     00:00    
Importing GPG key 0x442DF0F8:
 Userid     : "PostgreSQL RPM Building Project <pgsql-pkg-yum@postgresql.org>"
 Fingerprint: 68C9 E2B9 1A37 D136 FE74 D176 1F16 D2E1 442D F0F8
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG
Is this ok [y/N]: y
PostgreSQL 12 for RHEL / Rocky 8 - x86_64                                                                                                                             36 kB/s | 694 kB     00:19    
PostgreSQL 11 for RHEL / Rocky 8 - x86_64                                                                                                                             16  B/s | 195  B     00:12    
PostgreSQL 11 for RHEL / Rocky 8 - x86_64                                                                                                                            1.6 MB/s | 1.7 kB     00:00    
Importing GPG key 0x442DF0F8:
 Userid     : "PostgreSQL RPM Building Project <pgsql-pkg-yum@postgresql.org>"
 Fingerprint: 68C9 E2B9 1A37 D136 FE74 D176 1F16 D2E1 442D F0F8
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG
Is this ok [y/N]: y
PostgreSQL 11 for RHEL / Rocky 8 - x86_64                                                                                                                             41 kB/s | 885 kB     00:21    
PostgreSQL 10 for RHEL / Rocky 8 - x86_64                                                                                                                             16  B/s | 195  B     00:12    
PostgreSQL 10 for RHEL / Rocky 8 - x86_64                                                                                                                            1.6 MB/s | 1.7 kB     00:00    
Importing GPG key 0x442DF0F8:
 Userid     : "PostgreSQL RPM Building Project <pgsql-pkg-yum@postgresql.org>"
 Fingerprint: 68C9 E2B9 1A37 D136 FE74 D176 1F16 D2E1 442D F0F8
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG
Is this ok [y/N]: y
PostgreSQL 10 for RHEL / Rocky 8 - x86_64                                                                                                                             29 kB/s | 588 kB     00:20    
CentOS-8.5.2111 - AppStream - mirrors.aliyun.com
Name                                       Stream                                Profiles                                          Summary                                                           
postgresql                                 9.6                                   client, server [d]                                PostgreSQL server and client module                               
postgresql                                 10 [d]                                client, server [d]                                PostgreSQL server and client module                               
postgresql                                 12                                    client, server [d]                                PostgreSQL server and client module                               
postgresql                                 13                                    client, server [d]                                PostgreSQL server and client module                               
Hint: [d]efault, [e]nabled, [x]disabled, [i]nstalled
[root@localhost ~]# dnf module disable postgresql
PostgreSQL common RPMs for RHEL / Rocky 8 - x86_64                                                                                                                    16  B/s | 195  B     00:12    
PostgreSQL 14 for RHEL / Rocky 8 - x86_64                                                                                                                             16  B/s | 195  B     00:12    
PostgreSQL 13 for RHEL / Rocky 8 - x86_64                                                                                                                             16  B/s | 195  B     00:12    
PostgreSQL 12 for RHEL / Rocky 8 - x86_64                                                                                                                             16  B/s | 195  B     00:12    
Dependencies resolved.
=====================================================================================================================================================================================================
 Package                                        Architecture                                  Version                                           Repository                                      Size
=====================================================================================================================================================================================================
Disabling modules:
 postgresql                                                                                                                                                                                         

Transaction Summary
=====================================================================================================================================================================================================

Is this ok [y/N]: y
Complete!

安装pgsql12

[root@localhost ~]# dnf install postgresql12
Last metadata expiration check: 0:08:39 ago on Tue 22 Mar 2022 02:00:31 PM CST.
All matches were filtered out by modular filtering for argument: postgresql12
Error: Unable to find a match: postgresql12
[root@localhost ~]# dnf config-manager --disable pgdg11
[root@localhost ~]# dnf config-manager --disable pgdg10
[root@localhost ~]# dnf config-manager --disable pgdg96
Error: No matching repo to modify: pgdg96.
[root@localhost ~]# dnf module disable postgresql
PostgreSQL common RPMs for RHEL / Rocky 8 - x86_64                                                                                                                    16  B/s | 195  B     00:12    
PostgreSQL 14 for RHEL / Rocky 8 - x86_64                                                                                                                             16  B/s | 195  B     00:12    
PostgreSQL 13 for RHEL / Rocky 8 - x86_64                                                                                                                             16  B/s | 195  B     00:12    
PostgreSQL 12 for RHEL / Rocky 8 - x86_64                                                                                                                             16  B/s | 195  B     00:12    
Dependencies resolved.
=====================================================================================================================================================================================================
 Package                                        Architecture                                  Version                                           Repository                                      Size
=====================================================================================================================================================================================================
Disabling modules:
 postgresql                                                                                                                                                                                         

Transaction Summary
=====================================================================================================================================================================================================

Is this ok [y/N]: y
Complete!
[root@localhost ~]# dnf install postgresql12
Last metadata expiration check: 0:01:29 ago on Tue 22 Mar 2022 02:10:45 PM CST.
Dependencies resolved.
=====================================================================================================================================================================================================
 Package                                              Architecture                              Version                                              Repository                                 Size
=====================================================================================================================================================================================================
Installing:
 postgresql12                                         x86_64                                    12.10-1PGDG.rhel8                                    pgdg12                                    1.7 M
Installing dependencies:
 postgresql12-libs                                    x86_64                                    12.10-1PGDG.rhel8                                    pgdg12                                    400 k

Transaction Summary
=====================================================================================================================================================================================================
Install  2 Packages

Total download size: 2.1 M
Installed size: 10 M
Is this ok [y/N]: y
Downloading Packages:
(1/2): postgresql12-libs-12.10-1PGDG.rhel8.x86_64.rpm                                                                                                                 50 kB/s | 400 kB     00:08    
(2/2): postgresql12-12.10-1PGDG.rhel8.x86_64.rpm                                                                                                                     172 kB/s | 1.7 MB     00:09    
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                                213 kB/s | 2.1 MB     00:09     
warning: /var/cache/dnf/pgdg12-64e2194e85277659/packages/postgresql12-12.10-1PGDG.rhel8.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID 442df0f8: NOKEY
PostgreSQL 12 for RHEL / Rocky 8 - x86_64                                                                                                                            1.6 MB/s | 1.7 kB     00:00    
Importing GPG key 0x442DF0F8:
 Userid     : "PostgreSQL RPM Building Project <pgsql-pkg-yum@postgresql.org>"
 Fingerprint: 68C9 E2B9 1A37 D136 FE74 D176 1F16 D2E1 442D F0F8
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-PGDG
Is this ok [y/N]: y
Key imported successfully
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                             1/1 
  Installing       : postgresql12-libs-12.10-1PGDG.rhel8.x86_64                                                                                                                                  1/2 
  Running scriptlet: postgresql12-libs-12.10-1PGDG.rhel8.x86_64                                                                                                                                  1/2 
  Installing       : postgresql12-12.10-1PGDG.rhel8.x86_64                                                                                                                                       2/2 
  Running scriptlet: postgresql12-12.10-1PGDG.rhel8.x86_64                                                                                                                                       2/2 
  Verifying        : postgresql12-12.10-1PGDG.rhel8.x86_64                                                                                                                                       1/2 
  Verifying        : postgresql12-libs-12.10-1PGDG.rhel8.x86_64                                                                                                                                  2/2 
Installed products updated.

Installed:
  postgresql12-12.10-1PGDG.rhel8.x86_64                                                          postgresql12-libs-12.10-1PGDG.rhel8.x86_64                                                         

Complete!

安装服务端

[root@localhost ~]# dnf install postgresql12-server
Last metadata expiration check: 0:05:33 ago on Tue 22 Mar 2022 02:10:45 PM CST.
Dependencies resolved.
=====================================================================================================================================================================================================
 Package                                               Architecture                             Version                                               Repository                                Size
=====================================================================================================================================================================================================
Installing:
 postgresql12-server                                   x86_64                                   12.10-1PGDG.rhel8                                     pgdg12                                   5.2 M

Transaction Summary
=====================================================================================================================================================================================================
Install  1 Package

Total download size: 5.2 M
Installed size: 21 M
Is this ok [y/N]: y
Downloading Packages:
postgresql12-server-12.10-1PGDG.rhel8.x86_64.rpm                                                                                                                     390 kB/s | 5.2 MB     00:13    
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                                390 kB/s | 5.2 MB     00:13     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                             1/1 
  Running scriptlet: postgresql12-server-12.10-1PGDG.rhel8.x86_64                                                                                                                                1/1 
  Installing       : postgresql12-server-12.10-1PGDG.rhel8.x86_64                                                                                                                                1/1 
  Running scriptlet: postgresql12-server-12.10-1PGDG.rhel8.x86_64                                                                                                                                1/1 
  Verifying        : postgresql12-server-12.10-1PGDG.rhel8.x86_64                                                                                                                                1/1 
Installed products updated.

Installed:
  postgresql12-server-12.10-1PGDG.rhel8.x86_64                                                                                                                                                       

Complete!
[root@localhost ~]# dnf install postgresql12-contrib
Last metadata expiration check: 0:09:45 ago on Tue 22 Mar 2022 02:10:45 PM CST.
Dependencies resolved.
=====================================================================================================================================================================================================
 Package                                                Architecture                             Version                                              Repository                                Size
=====================================================================================================================================================================================================
Installing:
 postgresql12-contrib                                   x86_64                                   12.10-1PGDG.rhel8                                    pgdg12                                   645 k

Transaction Summary
=====================================================================================================================================================================================================
Install  1 Package

Total download size: 645 k
Installed size: 2.3 M
Is this ok [y/N]: y
Downloading Packages:
postgresql12-contrib-12.10-1PGDG.rhel8.x86_64.rpm                                                                                                                     84 kB/s | 645 kB     00:07    
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                                 84 kB/s | 645 kB     00:07     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                             1/1 
  Installing       : postgresql12-contrib-12.10-1PGDG.rhel8.x86_64                                                                                                                               1/1 
  Running scriptlet: postgresql12-contrib-12.10-1PGDG.rhel8.x86_64                                                                                                                               1/1 
  Verifying        : postgresql12-contrib-12.10-1PGDG.rhel8.x86_64                                                                                                                               1/1 
Installed products updated.

Installed:
  postgresql12-contrib-12.10-1PGDG.rhel8.x86_64                                                                                                                                                      

Complete!

注意:程序安装目录是"/usr/pgsql-12",程序运行目录是"/var/run/postgresql",程序运行用户和组是"postgres:postgres""postgres"用户和组安装时默认创建。

pgsql的配置

1 设置数据库默认的数据存储目录

数据库实例的默认存储目录是/var/lib/pgsql/12/data/,/var是一个系统目录,不适合存放大量的业务数据,因此要在初始化数据库实例之前创建一个存储目录

mkdir -p /data/pgsql12-data:因为创建了多级目录,所以需要-p

[root@localhost /]# mkdir -p /data/pgsql12-data
[root@localhost /]# ls
bin  boot  data  dev  etc  home  lib  lib64  lost+found  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
[root@localhost /]# cd data
[root@localhost data]# ll
total 4
drwxr-xr-x. 2 root root 4096 Mar 22 14:27 pgsql12-data

设置数据存储目录的所有者用户和组为postgres:postgrespostgres用户和组在安装PostgreSQL12时已创建

[root@localhost data]# chown postgres:postgres /data/pgsql12-data

修改postgreSQL12开机启动服务配置文件,设置为新的数据存储目录

[root@localhost data]# vim /usr/lib/systemd/system/postgresql-12.service <服务配置文件路径!>

将其中的enviroment变量注释掉,改为新的(vim如果卡死,按键ctrl+q

2 初始化数据库实例

进入程序安装目录下的bin目录下,执行postgresql-12-setup initdb命令。

[root@localhost data]# cd /usr/pgsql-12/bin
[root@localhost bin]# ./postgresql-12-setup initdb
Initializing database ... OK

3 启动数据库实例服务,并设置为开机自动启动

[root@localhost bin]# systemctl enable postgresql-12.service
Created symlink /etc/systemd/system/multi-user.target.wants/postgresql-12.service → /usr/lib/systemd/system/postgresql-12.service.
[root@localhost bin]# systemctl start postgresql-12.service

4 设置数据库实例超级管理员账户postgres的口令

postgreSQL12安装完成后postgres的默认口令为空,为空时无法使用该用户登录数据库。

[root@localhost bin]# passwd postgres
Changing password for user postgres.
New password: prs@2018
Retype new password: prs@2018
passwd: all authentication tokens updated successfully.
[root@localhost bin]# su postgres
bash-4.4$ psql
psql (12.10)
Type "help" for help.

postgres=#  alter user postgres with password 'xxxxx';
ALTER ROLE
postgres=# \q
bash-4.4$ exit
exit
[root@localhost bin]# 

5 设置数据库实例的远程访问策略

postgreSQL12安装完成后默认只允许本地访问

  1. 设置数据库实例访问策略,可以设置多个由主机类型、数据库、用户、IP地址组成的策略。

​ 在文件的"# IPv4 local connections"策略中追加一条“允许全部用户,通过全部网络地址访问全部数据库”的策略并保存,策略定义如 下:

vim /data/pgsql12-data/pg_hba.conf  "配置文件conf"
  1. 设置数据库实例的监听端口

    监听地址:*默认是全部地址,默认是localhost ||监听端口:默认是5432

vim /data/pgsql12-data/postgresql.conf

  1. 设置防火墙端口

centOS8默认安装firewall防火墙,允许5432端口(PostgreSQL默认端口)访问服务器。

[root@localhost bin]# firewall-cmd --zone=public --add-port=5432/tcp --permanent
success
[root@localhost bin]# firewall-cmd --reload
success

重新启动数据库服务实例

systemctl restart postgresql-12.service

数据库的运维和管理

  1. 数据库启动、停止、重启、查看状态、开机自启动、禁用开机自启动

    [root@localhost bin]# systemctl start postgresql-12.service   #开启
    [root@localhost bin]# systemctl stop postgresql-12.service    #停止
    [root@localhost bin]# systemctl restart postgresql-12.service #重启
    [root@localhost bin]# systemctl status postgresql-12.service  #查看状态
    ● postgresql-12.service - PostgreSQL 12 database server
       Loaded: loaded (/usr/lib/systemd/system/postgresql-12.service; enabled; vendor preset: disabled)
       Active: active (running) since Tue 2022-03-22 15:02:49 CST; 7s ago
         Docs: https://www.postgresql.org/docs/12/static/
      Process: 41843 ExecStartPre=/usr/pgsql-12/bin/postgresql-12-check-db-dir ${PGDATA} (code=exited, status=0/SUCCESS)
     Main PID: 41849 (postmaster)
        Tasks: 8 (limit: 11432)
       Memory: 17.8M
       CGroup: /system.slice/postgresql-12.service
               ├─41849 /usr/pgsql-12/bin/postmaster -D /data/pgsql12-data/
               ├─41853 postgres: logger   
               ├─41855 postgres: checkpointer   
               ├─41856 postgres: background writer   
               ├─41857 postgres: walwriter   
               ├─41858 postgres: autovacuum launcher   
               ├─41859 postgres: stats collector   
               └─41860 postgres: logical replication launcher   
    
    Mar 22 15:02:49 localhost.localdomain systemd[1]: Starting PostgreSQL 12 database server...
    Mar 22 15:02:49 localhost.localdomain postmaster[41849]: 2022-03-22 15:02:49.320 CST [41849] LOG:  starting PostgreSQL 12.10 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 8.5.0 20210514 (Red Hat 8>
    Mar 22 15:02:49 localhost.localdomain postmaster[41849]: 2022-03-22 15:02:49.321 CST [41849] LOG:  listening on IPv4 address "0.0.0.0", port 5432
    Mar 22 15:02:49 localhost.localdomain postmaster[41849]: 2022-03-22 15:02:49.321 CST [41849] LOG:  listening on IPv6 address "::", port 5432
    Mar 22 15:02:49 localhost.localdomain postmaster[41849]: 2022-03-22 15:02:49.324 CST [41849] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
    Mar 22 15:02:49 localhost.localdomain postmaster[41849]: 2022-03-22 15:02:49.328 CST [41849] LOG:  listening on Unix socket "/tmp/.s.PGSQL.5432"
    Mar 22 15:02:49 localhost.localdomain postmaster[41849]: 2022-03-22 15:02:49.338 CST [41849] LOG:  redirecting log output to logging collector process
    Mar 22 15:02:49 localhost.localdomain postmaster[41849]: 2022-03-22 15:02:49.338 CST [41849] HINT:  Future log output will appear in directory "log".
    Mar 22 15:02:49 localhost.localdomain systemd[1]: Started PostgreSQL 12 database server.
    [root@localhost bin]# systemctl enable postgresql-12.service   #开机自动开启
    
  2. 创建用户

    [root@localhost pgsql12-data]# su postgres
    bash-4.4$ psql
    psql (12.10)
    Type "help" for help.
    postgres=# CREATE DATABASE pvp_msf;
    CREATE DATABASE
    postgres=# CREATE DATABASE pvp_strike_db;
    CREATE DATABASE
    

离线安装需要的包

rpms包:

postgresql12-contrib-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-devel-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-docs-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-libs-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-llvmjit-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-plperl-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-plpython-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-plpython3-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-pltcl-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-server-12.10-1PGDG.rhel8.x86_64.rpm
postgresql12-test-12.10-1PGDG.rhel8.x86_64.rpm

静态资源包:postgresql-12.10 -tar.gz

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