求解答linux中安装mysql-5.7.20-linux-glibc2.12-x86_64出错

[qq_34321556]

我按照一篇文章一步一步的做的，前面都没问题作到这里：启动测试
./mysql.server start
失败提示：
[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).
是怎么回事呀？？？？

[曹宇飞丶]

'/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。

[qq_34321556]

创建/var/log/mariadb/mariadb.log文件,在那个var文件呢？我这里mysql安装在usr/local/mysql下的 找不到你说的这个路径？？？？

[qq_34321556]

要在/var/log这个文件夹下创建这个mariadb/mariadb.log文件么？还有授权给mysql用户，我还不会？？？？

[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]

直接执行 touch /var/log/mariadb/mariadb.log chown -R mysql:mysql /var/log/mariadb/ mkdir -p /var/run/mariadb/ chown -R mysql:mysql /var/run/mariadb/ 重启数据库即可。

[121rtr]

看看你的mariadb删了没 # rpm -qa|grep -i mariadb-libs # rpm -e mariadb-libs-5.5.44-2.el7.centos.x86_64 --nodeps