解决安装macports，不能更新的问题

执行命令 sudo port -v selfupdate，出现超时

68-245-171-115:var fanshulin$ sudo port -v selfupdate

Password:

---> Updating MacPorts base sources using rsync

rsync: failed to connect to rsync.macports.org: Operation timed out (60)

rsync error: error in socket IO (code 10) at /SourceCache/rsync/rsync-42/rsync/clientserver.c(105) [receiver=2.6.9]

Command failed: /usr/bin/rsync -rtzv --delete-after rsync://rsync.macports.org/release/tarballs/base.tar /opt/local/var/macports/sources/rsync.macports.org/release/tarballs

Exit code: 10

Error: /opt/local/bin/port: port selfupdate failed: Error synchronizing MacPorts sources: command execution failed

解决方法如下：

1.搜索到了官网的连接，http://trac.macports.org/ticket/36256，根据指引到达了
http://trac.macports.org/wiki/howto/PortTreeTarball
2.看到如下说明：

Configuration

Edit $prefix/etc/macports/sources.conf, comment out the rsync entry, and add a new entry as follows:

#rsync://rsync.macports.org/release/ports/ [default]
http://www.macports.org/files/ports.tar.gz [default]

直接编辑source.conf 是不行的，拷贝到桌面记事本打开

添加上上去，如下：

//rsync://rsync.macports.org/release/tarballs/ports.tar [default]

#rsync://rsync.macports.org/release/ports/ [default]
http://www.macports.org/files/ports.tar.gz [default]

3.把这个文件拷贝覆盖

4. sudo port -v selfupdate

5.正常更新，21M的包，如下：

68-245-171-115:var fanshulin$ sudo port -d sync

Password:

Warning: /opt/local/etc/macports/sources.conf specifies invalid source '//rsync://rsync.macports.org/release/tarballs/ports.tar [default]', ignored.

DEBUG: Copying /Users/fanshulin/Library/Preferences/com.apple.dt.Xcode.plist to /opt/local/var/macports/home/Library/Preferences

---> Updating the ports tree

Synchronizing local ports tree from http://www.macports.org/files/ports.tar.gz
% Total % Received % Xferd Average Speed Time Time Time Current

Dload Upload Total Spent Left Speed

100 21.5M 100 21.5M 0 0 32451 0 0:11:36 0:11:36 --:--:-- 81848

问题解决，xxoo,路还很长啊，我本是要装opencv的。