servidor @PostgreSQL não desligou no Lion (Mac OS 10.7)

Instalei o PostgreSQL usando o Homebrew no Lion. Começa bem, mas não fecha. Eu tentei

$ #started with
$ pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
$ #tried stoping with
$ pg_ctl -D /usr/local/var/postgres stop -m immediate
waiting for server to shut down................................... failed
pg_ctl: server does not shut down

Corrigi esse problema excluindo o Launch Agent:

launchctl unload -w ~/Library/LaunchAgents/org.postgresql.postgres.plist
rm ~/Library/LaunchAgents/org.postgresql.postgres.plist

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