升级到 Ubuntu 19.10 安装 mysql-server-8.0 失败

Question

从 19.04 升级完成时出现错误，然后当我运行sudo apt-get upgrade 或 sudo apt-get install mysql-server我得到：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 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.
Do you want to continue? [Y/n] Y
Setting up mysql-server-8.0 (8.0.17-0ubuntu2) ...
Renaming removed key_buffer and myisam-recover options (if present)
ERROR: Unable to start MySQL server:
2019-10-23T04:23:50.510438Z 0 [ERROR] [MY-000077] [Server] /usr/sbin/mysqld: Error while setting value 'IGNORE_SPACE,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION' to 'sql_mode'.
2019-10-23T04:23:50.512017Z 0 [ERROR] [MY-010119] [Server] Aborting
Please take a look at https://wiki.debian.org/Teams/MySQL/FAQ for tips on fixing common upgrade issues.
Once the problem is resolved, run apt-get --fix-broken install to retry.
dpkg: error processing package mysql-server-8.0 (--configure):
 installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of mysql-server:
 mysql-server depends on mysql-server-8.0; however:
  Package mysql-server-8.0 is not configured yet.

dpkg: error processing package mysql-server (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                          Errors were encountered while processing:
 mysql-server-8.0
 mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

我暂时启用了“预发布的更新（eoan 提议）”，sudo apt-get update并sudo apt-get upgrade一次又一次地运行，结果相同。

我一直在寻找，但找不到合适的解决方案。

关于如何解决这个问题的任何想法？只要当前数据库完好无损，我不介意回滚到以前的 mysql-server 版本。

TIA

Answer 1

MySQL 服务器无法启动以完成其安装：

Error while setting value 'IGNORE_SPACE,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION' to 'sql_mode'

在新的 MySQL 版本中，这些 sql 模式中的一种或多种不再可用。就你而言，是的NO_AUTO_CREATE_USER。

请参阅此处的有效模式列表： https: //dev.mysql.com/doc/refman/8.0/en/server-options.html#option_mysqld_sql-mode

编辑/etc/mysql/my.cnf并从选项列表中删除无效模式sql-mode=...