[Bug 1437862] Re: pg_upgradecluster fails: "could not get cluster locales"

** Description changed: We upgrade a 12.04 LTS to 14.04 LTS and use the pg_upgradecluster - command then (usage described in /usr/share/doc/README.Debian.gz). But - we get a failure an no upgrade is done: + command(usage as described in /usr/share/doc/README.Debian.gz). But we + get a failure an

[Bug 1437862] [NEW] pg_upgradecluster fails: "could not get cluster locales"

Public bug reported: We upgrade a 12.04 LTS to 14.04 LTS and use the pg_upgradecluster command then (usage described in /usr/share/doc/README.Debian.gz). But we get a failure an no upgrade is done: pg_dropcluster 9.3 main --stop pg_upgradecluster 9.1 main psql: FATAL: the database system is sh