Topic: Switching from Remi's 5.5 MySQL to 'standard' 5.7
I had a server that was running '5.5.44 MySQL Community Server (GPL) by Remi' (which I did not realize). I installed the standard mysql (with yum install mysql-devel) and the sever crashed. It will not come up now - it fails with this:
Fatal error: mysql.user table is damaged. Please run mysql_upgrade
How can I run mysql_upgrade if I can't start the server?
I need to get this server back up ASAP. What can I do? Can anyone help?