Comment 2 for bug 1639597

ERROR: Unable to start MySQL server:^M
2016-11-06T17:07:47.341045Z 0 [ERROR] unknown variable 'table_cache=1000'^M
2016-11-06T17:07:47.349529Z 0 [ERROR] Aborting^M
Please take a look at https://wiki.debian.org/Teams/MySQL/FAQ for tips on fixing common upgrade issues.^M
Once the problem is resolved, run apt-get --fix-broken install to retry.^M
dpkg: error processing package mysql-server-5.7 (--configure):^M
 subprocess installed post-installation script returned error exit status 1^M
dpkg: dependency problems prevent configuration of mysql-server:^M
 mysql-server depends on mysql-server-5.7; however:^M
  Package mysql-server-5.7 is not configured yet.^M
^M
dpkg: error processing package mysql-server (--configure):^M
 dependency problems - leaving unconfigured^M