我想完全删除服务器上与 mysql 相关的所有软件包。但我似乎无法完成这项任务。APT 似乎无法理解服务器上未安装 mysql-server。是否可以手动告诉 apt 软件包已被删除？
╭─root@home /etc/apt
╰─➤ apt-get remove mysql-server-core-5.5
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
mysql-server-5.5 : Depends: mysql-client-5.5 (>= 5.5.54-0+deb8u1) but it is not going to be installed
Depends: mysql-server-core-5.5 (>= 5.5.54-0+deb8u1) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
我也尝试过“清除”
╭─root@home /etc/apt
╰─➤ apt-get purge mysql-server-core-5.5 100 ↵
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
mysql-server-5.5 : Depends: mysql-client-5.5 (>= 5.5.54-0+deb8u1) but it is not going to be installed
Depends: mysql-server-core-5.5 (>= 5.5.54-0+deb8u1) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
运行 apt-get -f install 不能解决任何问题
dpkg: error processing package mysql-server-5.5 (--configure):
subprocess installed post-installation script returned error exit status 6
Processing triggers for libc-bin (2.19-18+deb8u7) ...
Errors were encountered while processing:
mysql-server-5.5
E: Sub-process /usr/bin/dpkg returned an error code (1)
运行 apt-get install mysql-server-5.5 --reinstall 也不起作用。
╭─root@home /etc/apt
╰─➤ apt-get install mysql-server-5.5 --reinstall 100 ↵
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
E: Internal Error, No file name for mysql-server-5.5:amd64
尝试使用 dpkg --purge --force-all mysql-community-server mysql-server-5.5 mysql-server-core-5.5 手动删除是没用的
╭─root@home /etc/apt
╰─➤ dpkg --purge --force-all mysql-community-server mysql-server-5.5 mysql-server-core-5.5 1 ↵
(Reading database ... 40739 files and directories currently installed.)
Removing mysql-community-server (5.7.17-1debian8) ...
Purging configuration files for mysql-community-server (5.7.17-1debian8) ...
................
dpkg: error processing package mysql-community-server (--purge):
subprocess installed post-removal script returned error exit status 1
Removing mysql-server-5.5 (5.5.54-0+deb8u1) ...
Failed to stop mysql.service: Unit mysql.service not loaded.
invoke-rc.d: initscript mysql, action "stop" failed.
dpkg: error processing package mysql-server-5.5 (--purge):
subprocess installed pre-removal script returned error exit status 5
Failed to stop mysql.service: Unit mysql.service not loaded.
invoke-rc.d: initscript mysql, action "stop" failed.
Failed to start mysql.service: Unit mysql.service failed to load: No such file or directory.
invoke-rc.d: initscript mysql, action "start" failed.
dpkg: error while cleaning up:
subprocess installed post-installation script returned error exit status 6
dpkg: warning: ignoring request to remove mysql-server-core-5.5 which isn't installed
Errors were encountered while processing:
mysql-community-server
mysql-server-5.5
逐个删除软件包也不起作用，系统提示“对话框”要求我为 mysql-server 设置 root 密码。
apt-get 删除 mysql 服务器 apt-get 删除 mysql 客户端 apt-get 删除 mysql 服务器核心
我会尽力按照您的意愿更新这个问题，但我现在正为此而烦恼。我几乎要重新安装整个服务器了。
答案1
从显示的消息来看，由于依赖关系，apt-get 停止，这是正确的行为。否则依赖该包的模块将停止工作。
正确的方法是阅读有关依赖于它的模块的消息，然后按顺序逐个删除它们，直到全部删除。
从消息来看， mysql-server-coremysql-server 需要。因此您必须按顺序进行删除。
sudo apt-get purge mysql-server
sudo apt-get purge mysql-client
sudo apt-get purge mysql-common
# I think when you uninstall mysql-server, it will also remove the core
最好的方法始终是用来dpkg -l | grep mysql检查已安装的相关包。
请尝试应用所述答案在这个问题中如果以上所有方法均失败。尽管如此，一些问题还是由指向包含旧的/有缺陷的安装脚本的过时的 debian/ubuntu 存储库引起的，但这种情况很少见。