Gentoo Linux下配置NFS（网络文件系统）

主机：Gentoo Linux 11.2

内核：Linux 3.0.6

原创作品，转载请表明出处http://blog.youkuaiyun.com/yming0221/article/details/7200611

1、内核编译配置

编译内核配置如下，选中NFS服务器支持

2、用于空间软件准备

命令安装nfs-utils

emerge -av nfs-utils
3、配置NFS用户目录及其权限在/etc/exports下

按自己的要求改写

/home/user/shared 192.168.0.3(async,rw,no_subtree_check)

/home/user/shared2 192.168.0.0/255.255.0.0(async,rw,no_subtree_check)

/mnt/portage 192.168.0.0/16(async,no_subtree_check,rw,no_root_squash)

而括号中的参数含义如下：

• rw- Allow read and write access
• ro- Allow read only access - no write access
• async- Reply to requests before data has been committed to the file system. This improves performance, but increases the risk of data loss in the event of a server crash.
• no_subtree_check- Disable subtree checking. The technical details are in the man page, but essentially it's recommended for read/write filesystems where files change frequently, such as/home. If you disable subtree checking and export something that's not the root of a filesystem, it's possible a client could access a file outside the exported directory, however.
• root_squash- Prevent the client creating files owned by root - instead they will be owned by the anonymous uid/gid (user id / group id, see man page for details).
• no_root_squash- Turn off root squashing. Mostly used on diskless clients.
• all_squash- Map all uids/gids to the anonymous user. This means that all files written to this filesystem will be owned by the same user.

3、启动NFS服务

/etc/init.d/nfs start
在开发板上挂载主机目录成功。