[Bug 1827292] Re: package mysql-server-5.7 5.7.26-0ubuntu0.18.04.1 failed to install/upgrade: installed mysql-server-5.7 package post-installation script subprocess returned error exit status 1

[Expired for mysql-5.7 (Ubuntu) because there has been no activity for 60 days.] ** Changed in: mysql-5.7 (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1827292] Re: package mysql-server-5.7 5.7.26-0ubuntu0.18.04.1 failed to install/upgrade: installed mysql-server-5.7 package post-installation script subprocess returned error exit status 1

Thank you for taking the time to report this bug and helping to make Ubuntu better. >From DpkgTerminalLog.txt it seems that mysql failed to query one of its default tables: Error occurred: Query against mysql.user table failed when checking the mysql.session. and indeed DpkgTerminalLog.txt