我刚刚通过以下方式重新安装了 postgres brew install postgres
我跑了initdb /usr/local/var/postgres -E utf8但得到了这个：
The files belonging to this database system will be owned by user "atal421".
This user must also own the server process.
The database cluster will be initialized with locale "en_US.UTF-8".
The default text search configuration will be set to "english".
initdb: directory "/usr/local/var/postgres" exists but is not empty
If you want to create a new database system, either remove or empty
the directory "/usr/local/var/postgres" or run initdb
with an …我通过自制软件卸载并重新安装了 postgresql。它工作正常，直到我重新启动计算机。现在我正在尝试运行我的测试，但它们正在爆炸。我正在查看当前进程，但没有看到所有这些 postgres 实例正在运行。我想我必须打开postgres。我试过跑步
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
但这似乎没有任何作用（尽管它确实说server starting，这是错误的）
如何启动服务器？
更新。日志信息：
cat /usr/local/var/postgres/server.log
postgres cannot access the server configuration file "/usr/local/var/postgres/postgresql.conf": No such file or directory
谢谢
我用 Lion 重新格式化了我的机器，它有这个默认版本的 git：
$ git --version
git version 1.7.7.5 (Apple Git-26)
我决定升级 git 所以我做了：
$ brew install git
==> Downloading http://git-core.googlecode.com/files/git-1.7.10.4.tar.gz
######################################################################## 100.0%
==> make prefix=/usr/local/Cellar/git/1.7.10.4 CC=/usr/bin/clang CFLAGS=-Os -w -pipe - march=native -Qunused-arguments LDFLAGS= install
==> make CC=/usr/bin/clang CFLAGS=-Os -w -pipe -march=native -Qunused-arguments LDFLAGS=
==> make clean
==> Downloading http://git-core.googlecode.com/files/git-manpages-1.7.10.4.tar.gz
######################################################################## 100.0%
==> Downloading http://git-core.googlecode.com/files/git-htmldocs-1.7.10.4.tar.gz
######################################################################## 100.0%
==> Caveats
Bash completion has been installed to:
/usr/local/etc/bash_completion.d
The OS X keychain credential helper has been installed to:
/usr/local/bin/git-credential-osxkeychain
The 'contrib' …