Thank you for taking the time to file a bug report. The first thing I tried was to translate the error messages you posted, which seem to be in Chinese. I found out that one of the errors is:
MySQLConf.etc.mysql.my.cnf: Error: [Errno 40] Too many layers of symbolic links:'/etc/mysql/my.cnf' This raised a flag for me, because /etc/mysql/my.cnf is not supposed to be a symbolic link by default. Then, I looked at the log files that are attached to the bug. From the DpkgHistoryLog.txt it seems that you installed mysql-server first, then tried installing mariadb-server right after. Unfortunately this is not going to work, because both packages share files. In order to fully remove mysql-server, you need to run: # apt-get purge mysql-server I would also recommend you to investigate why your /etc/mysql/my.cnf file is a symbolic link, and perhaps even remove it before installing mariadb-server (if that's what you want to do, of course). Since it seems likely to me that this is a local configuration problem, rather than a bug in Ubuntu, I am marking this bug as 'Incomplete'. However, if you believe that this is really a bug in Ubuntu, then we would be grateful if you would provide a more complete description of the problem with steps to reproduce, explain why you believe this is a bug in Ubuntu rather than a problem specific to your system, and then change the bug status back to "New". For local configuration issues, you can find assistance here: http://www.ubuntu.com/support/community ** Changed in: mysql-8.0 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940278 Title: package mysql-server-8.0 8.0.26-0ubuntu0.20.04.2 failed to install/upgrade: 已安装 mysql-server-8.0 软件包 pre-removal 脚本 子进程返回错误状态 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-8.0/+bug/1940278/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
