I have a mysql that has been working fine but now will not start. All I've been able to accomplish is using

sudo start mysql

which generates the following error:

start: Rejected send message, 1 matched rules; type="method_call", sender=":1.5" (uid=1000 pid=1678 comm="start mysql ") interface="com.ubuntu.Upstart0_6.Job" member="Start" error name="(unset)" requested_reply="0" destination="com.ubuntu.Upstart" (uid=0 pid=1 comm="/sbin/init")

I've tried googling sections of it, but it seems this is basically a useless error. Anyway I can get more information about what is going on?

  • 2
    Did you find a solution?
    – Robert
    Commented Sep 16, 2014 at 14:06

2 Answers 2


The problem is this:


That bit means that the user that contacted Upstart to perform the start action has the uid 1000 (not root, root is 0). That uid is usually assigned to the first non-system user. Something must be severely wrong with your usage of sudo, or sudo itself, because the command is not properly escalating to root.

You can see the same error with this command, for comparison (note the absence of sudo):

start --system mysql
  • 9
    so do sudo start mysql got it Commented Aug 27, 2015 at 19:27
  • The original question appears was using sudo. This did help me with the same error though, but I wasn't using sudo in the first place. Commented May 9, 2019 at 7:44

The recommended way to start services is to use the service command:

sudo service mysql start
  • IMO, start is a shorthand for service $1 start, so it should be the same.
    – Braiam
    Commented Sep 10, 2014 at 14:29
  • 6
    @Braiam start is actually initctl (a symlink), which does initctl start when called as start.
    – muru
    Commented Sep 11, 2014 at 22:38
  • How is initctl start different than service ... start? Commented May 9, 2019 at 7:39
  • My server crashed while restoring a DB and then this problem raised it head. The suggested solution worked to get it running again but I need to do this manually each time I start the server. Commented Feb 18, 2023 at 12:12

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