安装Mysql 5.7 on fedora23 kde

安装有多种方式，可以添加源之后直接，更新源，dnf install mysql_server

也可以下载apm包之后直接 rpm install ，初次安装可能需要安装一个包。

资料来自mysql文档

源网站

Installing and Upgrading MySQL

这个是一些安装完之后msql的一些文件分布

Table 2.9 MySQL Installation Layout for Linux RPM Packages from the MySQL Developer Zone（cp from http://dev.mysql.com/doc）

Files or Resources	Location
Client programs and scripts	/usr/bin
mysqld server	/usr/sbin
Configuration file	/etc/my.cnf
Data directory	/var/lib/mysql
Error log file	For RHEL, Oracle Linux, CentOS or Fedora platforms: /var/log/mysqld.log For SLES: /var/log/mysql/mysqld.log
Value of secure_file_priv	/var/lib/mysql-files
System V init script	For RHEL, Oracle Linux, CentOS or Fedora platforms: /etc/init.d/mysqld For SLES: /etc/init.d/mysql
Systemd service	For RHEL, Oracle Linux, CentOS or Fedora platforms: mysqld For SLES: mysql
Pid file	/var/run/mysql/mysqld.pid
Unix manual pages	/usr/share/man
Include (header) files	/usr/include/mysql
Libraries	/usr/lib/mysql
Socket	/var/lib/mysql/mysql.sock
Miscellaneous support files (for example, error messages and character set files)	/usr/share/mysql

mysql 不会自动开启服务，so 需要先打开一下mysqld

shell> [code]service mysqld start

然后我们就可以在mysql相关日志文件中搜索初始密码啦,查看一下目录，可以尝试下面两个命令

shell> [code]grep 'temporary password' /var/log/mysqld.log

shell> [code]grep 'temporary password' /var/log/mysql/mysqld.log

mysql -uroot -p  输入所查询到的密码即可进入熟悉的mysql

At the initial start up of the server, the following happens, given that the data directory of the server is empty:

The server is initialized.

An SSL certificate and key files are generated in the data directory.

The validate_password
plugin is installed and enabled.

A superuser account

'root'@'localhost'

is
created. A password for the superuser is set and stored in the error log file. To reveal it, use the following command for RHEL, Oracle Linux, CentOS, and Fedora platform:

shell> [code]grep 'temporary password' /var/log/mysqld.log

[/code]

Use the following command for SLES platform:

shell> [code]grep 'temporary password' /var/log/mysql/mysqld.log

[/code]

The next step is to log in with the generated, temporary password and set a custom password for the superuser account:

shell> [code]mysql -uroot -p

[/code]

mysql> [code]ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';

[/code]

Note

MySQL's validate_password plugin
is installed by default. This will require that passwords contain at least one upper case letter, one lower case letter, one digit, and one special character, and that the total password length is at least 8 characters.

If something goes wrong during installation, you might find debug information in the error log file

/var/log/mysqld.log

.

Compatibility
with RPM Packages from Other Vendors. If you have installed packages for MySQL from your Linux distribution's local software repository, it is much preferable to install the new, directly-downloaded packages from Oracle using the package management
system of your platform (yum, dnf,
orzypper),
as described above. The command replaces old packages with new ones to ensure compatibility of old applications with the new installation; for example, the old

mysql-libs

package
is replaced with the

mysql-community-libs-compat

package,
which provides a replacement-compatible client library for applications that were using your older MySQL installation. If there was an older version of

mysql-community-libs-compat

on
the system, it also gets replaced.

If you have installed third-party packages for MySQL that are NOT from your Linux distribution's local software repository (for example, packages directly downloaded from a vendor other than Oracle), you should uninstall all those packages before installing
the new, directly-downloaded packages from Oracle. This is because conflicts may arise between those vendor's RPM packages and Oracle's: for example, a vendor's convention about which files belong with the server and which belong with the client library may
differ from that used for Oracle packages. Attempts to install an Oracle RPM may then result in messages saying that files in the RPM to be installed conflict with files from an installed package.

Debug Package. A special variant of MySQL Server compiled with the debug
package has been included in the server RPM packages. It performs debugging and memory allocation checks and produces a trace file when the server is running. To use that debug version, start MySQL with

/usr/sbin/mysqld-debug

,
instead of starting it as a service or with

/usr/sbin/mysqld

.
See Section
24.5.3, “The DBUG Package” for the debug options you can use.

Rebuilding RPMs from source SRPMs. Source code SRPM packages for MySQL are available from the MySQL Yum repository. They
can be used as-is to rebuild the MySQL RPMs with the standard rpmbuild tool
chain.

root

passwords
for pre-GA releases. For MySQL 5.7.4 and 5.7.5, the initial random

root

password
is written to the

.mysql_secret

file
in the directory named by the

HOME

environment
variable. When trying to access the file, bear in mind that depending on operating system, using a command such as sudomay
cause the value of

HOME

to refer to
the home directory of the

root

system
user .

.mysql_secret

is created with
mode 600 to be accessible only to the system user for whom it is created. Before MySQL 5.7.4, the accounts (including

root

)
created in the MySQL grant tables for an RPM installation initially have no passwords; after starting the server, you should assign passwords to them using the instructions in Section
2.10, “Postinstallation Setup and Testing”."

( ¯(∞)¯ )祝小伙伴们，成功安装，并进入mysql~