The query Kees mentioned returned "0" for me as well. Did not have a duplicate user however.
This worked for me : UPDATE mysql.user SET Super_priv ='Y' WHERE USER= 'mysql.session'; GRANT SELECT on performance_schema.* to 'mysql.session'@'localhost'; flush privielges; Now the query Kees mentioned returns "1" and dpkg can continue its chores if I run "apt-get install -f)". This is not an elegant workaround (only addresses a symptom) but good enough for me (since I'm not interested in the whole "debian-sys-maint framework" anyway) to get on my way... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1726656 Title: package mysql-server-5.7 5.7.20-0ubuntu0.16.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1726656/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
