新人安装mysql-5.7.20-linux-glibc2.12-x86_64后./mysql.server start启动失败

[qq_34321556]

我是安装这位博客得文章一步一步的做的,做到这步(4. 启动测试
./mysql.server start)就失败了,失败代码解图:
[root@linuxprobe support-files]# ./mysql.server start
Starting MySQL.2017-10-26T08:20:34.772472Z mysqld_safe error: log-error set to '/var/log/mariadb/mariadb.log', however file don't exists. Create writable for user 'mysql'.
ERROR! The server quit without updating PID file (/var/lib/mysql/linuxprobe.com.pid).


这里有高手可以告诉我原因么?

[曹宇飞丶]

你在看linux就该这样学哇？ '/var/log/mariadb/mariadb.log', however file don't exists. Create writable for user 这里报的是log文件不存在，mysql用户又没有权限创建。 创建/var/log/mariadb/mariadb.log文件，授权给mysql用户。 日志没报错了的话，后面还有问题检查/var/lib/mysql/linuxprobe.com.pid这个文件目录存在不。

[qq_34321556]

/var/lib/mysql/linuxprobe.com.pid这个文件夹我也找不到 貌似不存在

[qq_34321556]

我通过vim etc/my.cnf中打开： [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # Settings user and group are ignored when systemd is used. # If you need to run mysqld under a different user or group, # customize your systemd unit file for mariadb according to the # instructions in http://fedoraproject.org/wiki/Systemd [mysqld_safe] log-error=/var/log/mariadb/mariadb.log pid-file=/var/run/mariadb/mariadb.pid # # include all files from the config directory # !includedir /etc/my.cnf.d 楼上的高手你帮我看看我这里是不是有/var/log/mariadb/mariadb.log文件了呀，可以进一步帮我分析问题出在哪里么？

[曹宇飞丶]

/etc/my.cnf中这是配置的文件路径。 log-error=/var/log/mariadb/mariadb.log pid-file=/var/run/mariadb/mariadb.pid 主要看下有没有这个文件夹，没有的话给他创建，并授权，要不然没有权限创建，mysql就会启动不了、

[cqyy725]

安装mysql的时候，先检查系统里面的自带的mariadb删除干净了没，你启动的是mariadb 。删掉他，再重新安装