I ran into this problem when I upgraded my VM from 14.04 to 16.04. mysql server no longer started, and after a re-install with
sudo apt purge mysql-server mysql-server-5.7 mysql-server-core-5.7 sudo apt install mysql-server showed the errors stated I shut them up with: sudo nano /etc/apparmor.d/usr.sbin.mysqld editing the system resource access section to: # Allow system resource access /sys/devices/system/cpu/ r, /sys/devices/system/node/ r, /sys/devices/system/node/** r, /proc/** r, Now it starts with no more app-armor blocks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1610765 Title: Apparmor refuses mysqld open on /etc/mysql/my.cnf.migrated causing it to fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1610765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
