On Thursday, 17 August 2017 23:23:56 CEST you wrote: > $ mysql_upgrade --socket mysql.socket > Looking for 'mysql' as: mysql > Looking for 'mysqlcheck' as: mysqlcheck > FATAL ERROR: Upgrade failed This looks like mysql-client-core-5.7 is not installed ... HTH -- https://github.com/dod38fr/ -o- http://search.cpan.org/~ddumont/ http://ddumont.wordpress.com/ -o- irc: dod at irc.debian.org