unit-mysql-0: 2015-04-14 15:34:25 INFO config-changed Hit http://archive.ubuntu.com trusty-updates/universe amd64 Packages
unit-mysql-0: 2015-04-14 15:34:25 INFO config-changed Hit http://archive.ubuntu.com trusty-updates/main Translation-en
unit-mysql-0: 2015-04-14 15:34:25 INFO config-changed Hit http://archive.ubuntu.com trusty-updates/universe Translation-en
unit-mysql-0: 2015-04-14 15:34:33 INFO config-changed Reading package lists...
unit-mysql-0: 2015-04-14 15:34:33 INFO config-changed Traceback (most recent call last):
unit-mysql-0: 2015-04-14 15:34:33 INFO config-changed   File "/var/lib/juju/agents/unit-mysql-0/charm/hooks/config-changed", line 114, in <module>
unit-mysql-0: 2015-04-14 15:34:33 INFO config-changed     with open('/var/lib/mysql/mysql.passwd','r') as rpw:
unit-mysql-0: 2015-04-14 15:34:33 INFO config-changed IOError: [Errno 2] No such file or directory: '/var/lib/mysql/mysql.passwd'
unit-mysql-0: 2015-04-14 15:34:33 ERROR juju.worker.uniter uniter.go:486 hook failed: exit status 1