[Bug 1435080] Re: mysql-server upgrade hangs dpkg --reconfigure (if root password is set?)

[Shevek]

/usr/share/mysql/mysql-systemd-start contains:

pinger () {
  while /bin/true ; do
    sleep 1
    mysqladmin ping >/dev/null 2>&1 && break
  done
}

So if mysql failed to come up, this will hang forever.

However, I think mysql failed to start because it couldn't read some
config file. I saw that message somewhere back in history.

"service mysql start" also hangs:
 poll_s S+   pts/12     0:00          |   |       \_ sudo service mysql start
 poll_s S+   pts/12     0:00          |   |           \_ systemctl start mysql.service
 poll_s S+   pts/12     0:00          |   |               \_ /bin/systemd-tty-ask-password-agent --watch
 poll_s Sl+  pts/12     0:00          |   |               \_ /usr/bin/pkttyagent --notify-fd 5 --fallback

But it isn't asking me for a password. Argh.

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Title:
  mysql-server upgrade hangs dpkg --reconfigure (if root password is
  set?)

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