centos安装nfs方法

首先安装yum install nfs-utils

配置nfs：修改/etc/exports 文件 /dsx01/(可用于挂载的目录) *(*表示任意IP地址)(insecure,rw,sync,no_root_squash)权限配置，具体参考172.16.15.3配置方式

重启nfs服务：service nfs restart

挂载nfs方式：mont -t nfs xxx.xxx.xxx.xxx:/xx/xx /xxx/xxx/

我之前安装这种方式安装没有问题，换了台物理机后，就报错了：

[root@sugon02 dsx01]# service nfs restart
Redirecting to /bin/systemctl restart  nfs.service
Job for nfs-server.service Failed because the control process exited with error code. See "systemctl status nfs-server.service" and "journalctl -xe" for details.

接着跟踪错误：

[root@sugon02 dsx01]# systemctl status nfs-server.service
● nfs-server.service - NFS server and services
   Loaded: loaded (/usr/lib/systemd/system/nfs-server.service; disabled; vendor preset: disabled)
   Active: Failed (Result: exit-code) since Fri 2017-02-24 15:19:08 CST; 28s ago
  Process: 2662 ExecStart=/usr/sbin/rpc.nfsd $RPCNFSDARGS (code=exited,status=1/FAILURE)
  Process: 2659 ExecStartPre=/usr/sbin/exportfs -r (code=exited,status=0/SUCCESS)
 Main PID: 2662 (code=exited,status=1/FAILURE)

Feb 24 15:19:08 sugon02 systemd[1]: Starting NFS server and services...
Feb 24 15:19:08 sugon02 rpc.nfsd[2662]: rpc.nfsd: writing fd to kernel Failed: errno 111 (Connection refused)


Feb 24 15:19:08 sugon02 rpc.nfsd[2662]: rpc.nfsd: unable to set any sockets for nfsdFeb 24 15:19:08 sugon02 systemd[1]: nfs-server.service: main process exited,code=exited,status=1/FAILUREFeb 24 15:19:08 sugon02 systemd[1]: Failed to start NFS server and
 services.Feb 24 15:19:08 sugon02 systemd[1]: Unit nfs-server.service entered Failed state.Feb 24 15:19:08 sugon02 systemd[1]: nfs-server.service Failed.



活的关键信息：


rpc.nfsd: writing fd to kernel Failed: errno 111 (Connection refused)
百度后知道还有起一个rpcbind服务：


 #service rpcbind restart
 #service nfs start
rpcbind服务起来之后，nfs服务也跟着拉起来，百度rpcbind了解到：


RPC即Remote Procedure Call Protocol（远程过程调用协议），RPCBIND用于取代旧版本中的portmap组件。 简单说，RPCBIND就是为了将不同服务与对应的端口进行绑定，以便支持机器间的互操作

到这我就成功了，如果还是安装失败，可以安装个portmap 再试试

centos安装nfs方法

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