Question Will I lose emails if I remove MySQL?

[Craig1986]

Recently, I tried to upgrade MySQL from 5.5.55 to 5.6. Unfortunately, this failed. To the point that I cannot start MySQL back. I have included the MySQLd Log below, in case anyone is able to identify a solution for the problem.

After posting questions on various Forums, no solutions have prevailed. As such, I am contemplating simply wiping MySQL completely and trying a clean install. I would be looking to wipe the content by entering the below command via SSH:

• yum remove mysql mysql-server

Prior to doing this, I was wondering if doing so would also wipe all Email Content as well? I have performed a Backup of the MySQL Database but can only see content that has been entered onto the website. Pages, Posts, Products etc.

MySQL Log

[System] [MY-011012] [Server] Starting upgrade of data directory.
[ERROR] [MY-013090] [InnoDB] Unsupported redo log format (0). The redo log was created before MySQL 5.7.9
[ERROR] [MY-012930] [InnoDB] Plugin initialization aborted with error Generic error.
[ERROR] [MY-011013] [Server] Failed to initialize DD Storage Engine.
[ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
[ERROR] [MY-010119] [Server] Aborting
[System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.16) MySQL Community Server - GPL.
[Warning] [MY-011070] [Server] 'Disabling symbolic links using --skip-symbolic-links (or equivalent) is the default. Consider not using this option as it' is deprecated and will be removed in a future release.
[System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.16) starting as process 4283
[System] [MY-011012] [Server] Starting upgrade of data directory.
[ERROR] [MY-013090] [InnoDB] Unsupported redo log format (0). The redo log was created before MySQL 5.7.9
[ERROR] [MY-012930] [InnoDB] Plugin initialization aborted with error Generic error.
[ERROR] [MY-011013] [Server] Failed to initialize DD Storage Engine.
[ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
[ERROR] [MY-010119] [Server] Aborting
[System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.16) MySQL Community Server - GPL.
[Warning] [MY-011070] [Server] 'Disabling symbolic links using --skip-symbolic-links (or equivalent) is the default. Consider not using this option as it' is deprecated and will be removed in a future release.
[System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.16) starting as process 4608
[System] [MY-011012] [Server] Starting upgrade of data directory.
[ERROR] [MY-013090] [InnoDB] Unsupported redo log format (0). The redo log was created before MySQL 5.7.9
[ERROR] [MY-012930] [InnoDB] Plugin initialization aborted with error Generic error.
[ERROR] [MY-011013] [Server] Failed to initialize DD Storage Engine.
[ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
[ERROR] [MY-010119] [Server] Aborting
[System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.16) MySQL Community Server - GPL.
[Warning] [MY-011070] [Server] 'Disabling symbolic links using --skip-symbolic-links (or equivalent) is the default. Consider not using this option as it' is deprecated and will be removed in a future release.
[System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.16) starting as process 4939
[System] [MY-011012] [Server] Starting upgrade of data directory.
[ERROR] [MY-013090] [InnoDB] Unsupported redo log format (0). The redo log was created before MySQL 5.7.9
[ERROR] [MY-012930] [InnoDB] Plugin initialization aborted with error Generic error.
[ERROR] [MY-011013] [Server] Failed to initialize DD Storage Engine.
[ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
[ERROR] [MY-010119] [Server] Aborting
[System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.16) MySQL Community Server - GPL.

 

[Ales]

I suggest keeping this in one thread, or it may become difficult to follow what's going on.