Hi Yuan, please do not call the /etc/init.d scripts directly, they're not guaranteed to work as one may expect and are in good part a legacy a pre-systemd times. Please use systemctl(1) instead, e.g.:
$ systemctl status mysql $ systemctl stop mysql $ systemctl start mysql and similar. ** Changed in: mysql-8.0 (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1914636 Title: package mysql-server-8.0 8.0.23-0ubuntu0.20.04.1 failed to install/upgrade: installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-8.0/+bug/1914636/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs