ubuntu 20.04安装mysql 5.7
ubuntu 20.04系统自带源直接安装是MySQL 8.0,我要安装MySQL 5.7的版本的所以先进行换源
在操作前先备份原来的sorce文件
sudo
cp
/etc/apt/sources
.list
/etc/apt/sources
.list.old
修改sources.list文件,删除所有的配制信息,改成选择的是清华镜像源,保存退出。
sudo
vim
/etc/apt/sources
.list
清华镜像源
# 清华镜像源
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
# 阿里源
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
# 中科大源
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
#ubtuntu自带
#deb cdrom:[Ubuntu 20.04.3 LTS _Focal Fossa_ - Release amd64 (20210819)]/ focal main restricted# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://cn.archive.ubuntu.com/ubuntu/ focal main restricted
# deb-src http://cn.archive.ubuntu.com/ubuntu/ focal main restricted## Major bug fix updates produced after the final release of the
## distribution.
deb http://cn.archive.ubuntu.com/ubuntu/ focal-updates main restricted
# deb-src http://cn.archive.ubuntu.com/ubuntu/ focal-updates main restricted## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://cn.archive.ubuntu.com/ubuntu/ focal universe
# deb-src http://cn.archive.ubuntu.com/ubuntu/ focal universe
deb http://cn.archive.ubuntu.com/ubuntu/ focal-updates universe
# deb-src http://cn.archive.ubuntu.com/ubuntu/ focal-updates universe## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://cn.archive.ubuntu.com/ubuntu/ focal multiverse
# deb-src http://cn.archive.ubuntu.com/ubuntu/ focal multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ focal-updates multiverse
# deb-src http://cn.archive.ubuntu.com/ubuntu/ focal-updates multiverse## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://cn.archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse
# deb-src http://cn.archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu focal partner
# deb-src http://archive.canonical.com/ubuntu focal partnerdeb http://security.ubuntu.com/ubuntu focal-security main restricted
# deb-src http://security.ubuntu.com/ubuntu focal-security main restricted
deb http://security.ubuntu.com/ubuntu focal-security universe
# deb-src http://security.ubuntu.com/ubuntu focal-security universe
deb http://security.ubuntu.com/ubuntu focal-security multiverse
# deb-src http://security.ubuntu.com/ubuntu focal-security multiverse# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.
#腾讯云服务器ubuntu 20.04 自带
deb http://mirrors.tencentyun.com/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.tencentyun.com/ubuntu/ focal-security main restricted universe multiverse
deb http://mirrors.tencentyun.com/ubuntu/ focal-updates main restricted universe multiverse
#deb http://mirrors.tencentyun.com/ubuntu/ focal-proposed main restricted universe multiverse
#deb http://mirrors.tencentyun.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src http://mirrors.tencentyun.com/ubuntu/ focal main restricted universe multiverse
deb-src http://mirrors.tencentyun.com/ubuntu/ focal-security main restricted universe multiverse
deb-src http://mirrors.tencentyun.com/ubuntu/ focal-updates main restricted universe multiverse
#deb-src http://mirrors.tencentyun.com/ubuntu/ focal-proposed main restricted universe multiverse
#deb-src http://mirrors.tencentyun.com/ubuntu/ focal-backports main restricted universe multiverse
更新镜像源和软件
# 更新镜像源
sudo
apt-get update
# 更新软件
sudo
apt-get upgrade
apt-get install 方式安装mysql 5.7
安装mysql服务端
sudo
apt-get
install
mysql-server-5.7
遇到图片如下,两次输入数据库密码 下一步就安装完成。
安装mysql 客户端
sudo
apt-get
install
mysql-client-5.7
使用c/c++等语言操作mysql的动态链接库,如果不需要可不安装
sudo
apt
install
libmysqlclient-dev
查看mysql版本
mysql -V
卸载
mysql数据库
# 卸载mysql:
1.sudo apt-get autoremove mysql* --purge
2.sudo apt-get remove mysql-server
3.sudo apt-get remove mysql-common
# 清理残留数据
sudo dpkg -l |grep mysql|awk '{print $2}' |sudo xargs dpkg -P
sudo rm -rf /etc/mysql/
sudo rm -rf /var/lib/mysql
# 检查是否删除完毕
whereis mysql
sudo find / -name mysql
安装 nginx与php之间的桥梁
sudo apt-get install php7.4-fpm
启动php7.2-fpm
sudo service php7.2-fpm start
如新安装mysql无密码,可以通过mysql -uroot -p 回车进入mysql命令行,直接修改密码,命令如下,设置密码为root,复制命令,把root换成你的真实数据库密码就行
set password =password('root');
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