Linux 上的 rsnapshot 失败并显示“处理时返回 12”

Question

我以为我已经正确设置了 rsnapshot，但第二天检查日志后，我发现了以下内容：

[05/Sep/2014:10:34:11] /usr/bin/rsnapshot daily: ERROR: /usr/bin/rsync returned 12 while processing john@192.168.0.102:/media/linuxstorage/docs/

返回码“12”是什么意思？

Answer 1

为了看看发生了什么，我手动运行它并去做其他事情：

raspberrypi $ sudo rsnapshot daily

好吧，你瞧，它一直坐在那里等待我的密码。

john@192.168.0.102's password: 
Connection closed by 192.168.0.102
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: error in rsync protocol data stream (code 12) at io.c(605) [Receiver=3.0.9]
----------------------------------------------------------------------------
rsnapshot encountered an error! The program was invoked with these options:
/usr/bin/rsnapshot daily 
----------------------------------------------------------------------------
ERROR: /usr/bin/rsync returned 12 while processing bgrissom@192.168.0.102:/medi/linuxstorage/docs/

我已将 rsnapshot 用户从 更改为piin root，/etc/crontab并且root没有为远程主机设置“无密码 ssh”密钥。我所要做的就是解决这个问题：

raspberrypi $ sudo bash
raspberrypi # ssh-copy-id john@192.168.0.102