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OK6410开发板:挂载NFS、从NFS启动:

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搭建NFS服务:

环境是Fedora16,以下为安装过程:

安装NFS服务 #yum install portmap nfs-utils*

编辑/etc/exports

/home/work/fs/rootfs 192.168.0.0/24(rw,sync,no_root_squash)

/home/work/fs/rootfs指定哪个共享目录

192.168.0.0/24表示允许那些主机可以访问,如果是*号,表示所有主机

rw 表示可读写;sync 表示同步,no_root_squash 表示权限

启用NFS服务# systemctl enable nfs-server.service

ln -s '/lib/systemd/system/nfs-server.service' '/etc/systemd/system/multi-user.target.wants/nfs-server.service'

检查NFS服务是否被启用

# systemctl is-enabled nfs-server.service

enabled

启动NFS服务# systemctl start nfs-server.service 或者用service命令# service nfs-server restart

Redirecting to /bin/systemctl  restart nfs-server.service

查看NFS服务状态# systemctl status nfs-server.service

nfs-server.service - NFS Server

 Loaded: loaded (/lib/systemd/system/nfs-server.service; enabled)

 Active: active (running) since Sat, 26 Oct 2013 10:33:13 +0800; 1min 46s ago

本地测试# showmount -e localhost

# mount -t nfs localhost:/home/work/fs/rootfs /home/nfs 

# umount /home/nfs

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在OK6410上挂载NFS:

# mount -t nfs localhost:/home/work/fs/rootfs /tmp

挂载时会出现的问题:

svc: failed to register lockdv1 RPC service (errno 111).

lockd_up: makesock failed, error=-111

mount: mounting 192.168.0.110:/home/work/fs/rootfs on /tmp failed: Connection refused

解决方法:

mount -t nfs -o nolock 192.168.0.110:/home/work/fs/rootfs /tmp

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OK6410从NFS启动:

进入U-Boot命令行模式,设置:

setenv bootargs "root=/dev/nfs nfsroot=192.168.0.110:/home/work/fs/rootfs

ip=192.168.0.120:192.168.0.110:192.168.0.1:255.255.255.0:witech.com.cn:eth0:off console=ttySAC2,115200"

保存参数:saveenv

重新启动:reset

启动的输出信息中可以看到

...

VFS: Mounted root (nfs filesystem) on device 0:14.

devtmpfs: mounted

Freeing init memory: 176K

----------munt all----------------

route: SIOCADDRT: File exists

OK!

bash-4.0# ls

bin      etc      linuxrc  proc     sys      usr

dev      lib      mnt      sbin     tmp      var

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