mysql - 将现有版本的mysql 5.6.35更新到5.7.17

Question

我在kali linux上安装了mysql 5.6.35。如何更新到 5.7.17 ？

我尝试过 mysql_upgrade ，它给出了以下错误

Looking for 'mysql' as: mysql
Looking for 'mysqlcheck' as: mysqlcheck
Error: Failed while fetching Server version! Could be due to unauthorized access.
FATAL ERROR: Upgrade failed

Answer 1

您必须传递 root 密码:

mysql_upgrade -u root -p

但是这不足以升级到 5.7.x

首先从 https://repo.mysql.com/ 下载并安装 mysql 社区版本存储库:

cd ~
wget http://repo.mysql.com/mysql-community-release-el7-7.noarch.rpm
rpm -ivh mysql*.rpm
rpm -qa | grep mysql | grep release
mysql-community-release-el7-7.noarch

您可能需要按照本指南了解如何启用子存储库，具体取决于您之前从 https://repo.mysql.com/ 下载的内容: https://dev.mysql.com/doc/refman/5.7/en/linux-installation-yum-repo.html

基本上，您需要禁用旧的子存储库并启用开发子存储库:

yum-config-manager --disable mysql56-community
yum-config-manager --enable mysql57-community-dmr

您可以检查子存储库的状态:

yum repolist all | grep mysql5..c

最终升级mysql:

yum clean all
yum upgrade
yum autoremove
mysql_upgrade -u root -p

验证安装的版本:

rpm -qa | grep mysql | grep server
mysql-community-server-5.7.17-1.el7.x86_64

额外: 您始终可以检查 .rpm 内容，例如:

 rpm2cpio ~/mysql-community-release-el7-7.noarch.rpm | cpio -idmv
 cd ~/etc/yum.repos.d
 cat mysql-community.repo

这样您就可以看到添加了哪些子存储库。