问加载共享库时的后缀错误: libmysqlclient.so.18

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用Fix更新

经过几个小时的努力，我终于决定删除postfix并重新安装它，以解决这个问题。好消息是它成功并帮助找到了丢失的包裹。 下面是我运行的命令： #yum remove postifix #yum clean all #yum install postfix 下面是安装输出： # yum install postfix Loaded plugins: extras_suggestions, langpacks, priorities, update-motd amzn2-core | 3.7 kB 00:00:00 amzn2extra-docker | 3.0 kB 00:00:00 amzn2extra-epel | 3.0 kB 00:00:00 amzn2extra-kernel-5.10 | 3.0 kB 00:00:00 amzn2extra-nginx1 | 3.0 kB 00:00:00 amzn2extra-php8.0 | 3.0 kB 00:00:00 epel/x86_64/metalink | 22 kB 00:00:00 epel | 4.7 kB 00:00:00 mysql-connectors-community | 2.6 kB 00:00:00 mysql-tools-community | 2.6 kB 00:00:00 mysql80-community | 2.6 kB 00:00:00 (1/19): amzn2-core/2/x86_64/group_gz | 2.5 kB 00:00:00 (2/19): amzn2-core/2/x86_64/updateinfo | 498 kB 00:00:00 (3/19): amzn2extra-epel/2/x86_64/primary_db | 1.8 kB 00:00:00 (4/19): amzn2extra-kernel-5.10/2/x86_64/updateinfo | 18 kB 00:00:00 (5/19): amzn2extra-docker/2/x86_64/updateinfo | 6.4 kB 00:00:00 (6/19): amzn2extra-epel/2/x86_64/updateinfo | 76 B 00:00:00 (7/19): amzn2extra-nginx1/2/x86_64/updateinfo | 76 B 00:00:00 (8/19): amzn2extra-docker/2/x86_64/primary_db | 93 kB 00:00:00 (9/19): amzn2extra-nginx1/2/x86_64/primary_db | 48 kB 00:00:00 (10/19): amzn2extra-php8.0/2/x86_64/updateinfo | 76 B 00:00:00 (11/19): amzn2extra-php8.0/2/x86_64/primary_db | 181 kB 00:00:00 (12/19): epel/x86_64/group_gz | 97 kB 00:00:00 (13/19): epel/x86_64/updateinfo | 1.1 MB 00:00:00 (14/19): amzn2extra-kernel-5.10/2/x86_64/primary_db | 11 MB 00:00:00 (15/19): epel/x86_64/primary_db | 7.0 MB 00:00:00 (16/19): mysql-connectors-community/x86_64/primary_db | 90 kB 00:00:00 (17/19): mysql-tools-community/x86_64/primary_db | 87 kB 00:00:00 (18/19): mysql80-community/x86_64/primary_db | 211 kB 00:00:00 (19/19): amzn2-core/2/x86_64/primary_db | 65 MB 00:00:01 293 packages excluded due to repository priority protections Resolving Dependencies --> Running transaction check ---> Package postfix.x86_64 2:2.10.1-6.amzn2.0.3 will be installed --> Processing Dependency: libmysqlclient.so.18(libmysqlclient_18)(64bit) for package: 2:postfix-2.10.1-6.amzn2.0.3.x86_64 --> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 2:postfix-2.10.1-6.amzn2.0.3.x86_64 --> Running transaction check ---> Package mysql-community-libs-compat.x86_64 0:8.0.30-1.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ====================================================================================================================================================================================================== Package Arch Version Repository Size ====================================================================================================================================================================================================== Installing: postfix x86_64 2:2.10.1-6.amzn2.0.3 amzn2-core 2.4 M Installing for dependencies: mysql-community-libs-compat x86_64 8.0.30-1.el7 mysql80-community 670 k Transaction Summary ====================================================================================================================================================================================================== Install 1 Package (+1 Dependent package) 正如您在这里看到的，在我的例子中缺少的包是mysql-community-libs-compat-8.0.30-1.el7.x86_64。 现在我得到了以下信息： # ls -al /usr/lib64/mysql total 10984 drwxr-xr-x. 5 root root 233 Oct 4 12:41 . dr-xr-xr-x. 49 root root 28672 Sep 29 13:49 .. lrwxrwxrwx. 1 root root 20 Oct 4 12:41 libmysqlclient_r.so.18 -> libmysqlclient.so.18 lrwxrwxrwx. 1 root root 24 Oct 4 12:41 libmysqlclient_r.so.18.1.0 -> libmysqlclient.so.18.1.0 lrwxrwxrwx. 1 root root 24 Oct 4 12:41 libmysqlclient.so.18 -> libmysqlclient.so.18.1.0 -rwxr-xr-x. 1 root root 3546456 Jul 6 17:53 libmysqlclient.so.18.1.0 lrwxrwxrwx. 1 root root 25 Sep 28 21:53 libmysqlclient.so.21 -> libmysqlclient.so.21.2.30 -rwxr-xr-x. 1 root root 7651120 Jul 6 17:53 libmysqlclient.so.21.2.30 drwxr-xr-x. 4 root root 28 Sep 28 21:53 mecab drwxr-xr-x. 2 root root 4096 Sep 28 21:53 plugin drwxr-xr-x. 3 root root 131 Sep 28 21:53 private 最后，我运行了以下命令： //Start Postfix #systemctl start postfix //Enable the service so it will start on its own after reboot #systemctl enable postfix //Check to ensure it is running with no errors #systemctl status postfix //The key portion of the output that I was looking for Active: active (running) 最后，测试它以确保其工作正常。当然，这是在根据我的需要配置后缀之后！ echo "Subject: My Test Email #1" | /usr/sbin/sendmail youremailhere@gmail.com 收到电子邮件！:) 希望这能帮助其他有类似情况的人！