我的 Ubuntu 服务器出现了严重问题，我今天从 19.09 更新到了 19.10，但在安装过程中，系统一直提示 MySQL 更新失败，服务器想要更改 mysql.conf 文件，我选择不替换该文件，之后当我尝试登录 phpmyadmin 时，它说：没有这样的文件或目录（在输入密码和用户名后的登录屏幕上）。它包含大量数据，大量敏感数据。我需要帮助，因为周一办公室里的每个人都会使用它。
Fixing mysql-client-core-8.0:amd64 via remove of mysql-client-core-5.7:amd64
Investigating (0) mysql-server-core-8.0:amd64 < none -> 8.0.20-0ubuntu0.19.10.1 @un uN Ib >
Broken mysql-server-core-8.0:amd64 Ütközik on mysql-server-5.7:amd64 < 5.7.28-0ubuntu0.19.04.2 @ii mK Ib >
Considering mysql-server-5.7:amd64 -4 as a solution to mysql-server-core-8.0:amd64 0
Added mysql-server-5.7:amd64 to the remove list
Broken mysql-server-core-8.0:amd64 Ütközik on mysql-server-core-5.7:amd64 < 5.7.28-0ubuntu0.19.04.2 @ii mK Ib >
Considering mysql-server-core-5.7:amd64 -2 as a solution to mysql-server-core-8.0:amd64 0
Added mysql-server-core-5.7:amd64 to the remove list
Broken mysql-server-core-8.0:amd64 Ütközik on virtual-mysql-server-core:amd64 < none @un H >
Considering mysql-server-core-5.7:amd64 -2 as a solution to mysql-server-core-8.0:amd64 0
Added mysql-server-core-5.7:amd64 to the remove list
Conflicts//Breaks against version 1:10.3.22-0ubuntu0.19.10.1 for mariadb-server-core-10.3 but that is not InstVer, ignoring
Conflicts//Breaks against version 5.7.20-29.24-0ubuntu3 for percona-xtradb-cluster-server-5.7 but that is not InstVer, ignoring
Conflicts//Breaks against version 1:10.3.17-1 for mariadb-server-core-10.3 but that is not InstVer, ignoring
以下是一些错误日志