目录

■前言

■查看安装的软件

■删除安装的软件

正常删除（dpkg -r xxxxName）

问题解决：use --purge to remove them too

■其他调查信息

命令

图片1

图片2

图片3

---

==========

■前言

安装Mysql8.3失败

我的服务器-CSDN博客

■查看安装的软件

dpkg -l

===

■删除安装的软件

删除时使用先后顺序的，根据提示删除即可

正常删除（dpkg -r xxxxName）

dpkg -r xxxxName

问题解决：use --purge to remove them too

dpkg: warning: ignoring request to remove mysql-community-client, only the config
 files of which are on the system; use --purge to remove them too

===

apt-get purge mysql-community-client

==

■其他调查信息

命令

-------------------------
systemctl start mysql.service
 
systemctl status mysql.service
-------------------------

ldd /usr/sbin/mysqld
-------------------------
     libssl.so.3 => not found
     libcrypto.so.3 => not found
-------------------------
apt-get install openssl

-------------------------
find / -name "mysql.service" -type f

cat /usr/lib/systemd/system/mysql.service | grep ExecStar
-----
ExecStartPre=+/usr/share/mysql-8.3/mysql-systemd-start pre
ExecStart=/usr/sbin/mysqld
------

==

dpkg -i mysql-common_8.3.0-1ubuntu22.04_amd64.deb
mysql-community-client-core_8.3.0-1ubuntu22.04_amd64.deb
dpkg -i mysql-community-server_8.3.0-1ubuntu22.04_amd64.deb
dpkg -i mysql-server_8.3.0-1ubuntu22.04_amd64.deb

dpkg -l | grep mysql
dpkg -r mysql-community-server

apt-get purge mysql-community-server

---------------------------
root@ubuntu:/opt/mysql# systemctl start mysql.service
Failed to start mysql.service: Unit mysql.service is masked.
---------------------------
systemctl unmask mysql.service

===

图片1

图片2

图片3

===