2 tristate "NFS client support"
3 depends on INET && FILE_LOCKING
6 select NFS_ACL_SUPPORT if NFS_V3_ACL
8 Choose Y here if you want to access files residing on other
9 computers using Sun's Network File System protocol. To compile
10 this file system support as a module, choose M here: the module
13 To mount file systems exported by NFS servers, you also need to
14 install the user space mount.nfs command which can be found in
15 the Linux nfs-utils package, available from http://linux-nfs.org/.
16 Information about using the mount command is available in the
17 mount(8) man page. More detail about the Linux NFS client
18 implementation is available via the nfs(5) man page.
20 Below you can choose which versions of the NFS protocol are
21 available in the kernel to mount NFS servers. Support for NFS
22 version 2 (RFC 1094) is always available when NFS_FS is selected.
24 To configure a system which mounts its root file system via NFS
25 at boot time, say Y here, select "Kernel level IP
26 autoconfiguration" in the NETWORK menu, and select "Root file
27 system on NFS" below. You cannot compile this file system as a
33 bool "NFS client support for NFS version 3"
36 This option enables support for version 3 of the NFS protocol
37 (RFC 1813) in the kernel's NFS client.
42 bool "NFS client support for the NFSv3 ACL protocol extension"
45 Some NFS servers support an auxiliary NFSv3 ACL protocol that
46 Sun added to Solaris but never became an official part of the
47 NFS version 3 protocol. This protocol extension allows
48 applications on NFS clients to manipulate POSIX Access Control
49 Lists on files residing on NFS servers. NFS servers enforce
50 ACLs on local files whether this protocol is available or not.
52 Choose Y here if your NFS server supports the Solaris NFSv3 ACL
53 protocol extension and you want your NFS client to allow
54 applications to access and modify ACLs on files on the server.
56 Most NFS servers don't support the Solaris NFSv3 ACL protocol
57 extension. You can choose N here or specify the "noacl" mount
58 option to prevent your NFS client from trying to use the NFSv3
64 bool "NFS client support for NFS version 4"
69 This option enables support for version 4 of the NFS protocol
70 (RFC 3530) in the kernel's NFS client.
72 To mount NFS servers using NFSv4, you also need to install user
73 space programs which can be found in the Linux nfs-utils package,
74 available from http://linux-nfs.org/.
79 bool "NFS client support for NFSv4.1 (EXPERIMENTAL)"
80 depends on NFS_FS && NFS_V4 && EXPERIMENTAL
81 select SUNRPC_BACKCHANNEL
82 select PNFS_FILE_LAYOUT
84 This option enables support for minor version 1 of the NFSv4 protocol
85 (RFC 5661) in the kernel's NFS client.
89 config PNFS_FILE_LAYOUT
94 depends on NFS_FS && NFS_V4_1 && BLK_DEV_DM
99 depends on NFS_FS && NFS_V4_1 && SCSI_OSD_ULD
102 config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
103 string "NFSv4.1 Implementation ID Domain"
107 This option defines the domain portion of the implementation ID that
108 may be sent in the NFS exchange_id operation. The value must be in
109 the format of a DNS domain name and should be set to the DNS domain
110 name of the distribution.
111 If the NFS client is unchanged from the upstream kernel, this
112 option should be set to the default "kernel.org".
115 bool "Root file system on NFS"
116 depends on NFS_FS=y && IP_PNP
118 If you want your system to mount its root file system via NFS,
119 choose Y here. This is common practice for managing systems
120 without local permanent storage. For details, read
121 <file:Documentation/filesystems/nfs/nfsroot.txt>.
123 Most people say N here.
126 bool "Provide NFS client caching support"
127 depends on NFS_FS=m && FSCACHE || NFS_FS=y && FSCACHE=y
129 Say Y here if you want NFS data to be cached locally on disc through
130 the general filesystem cache manager
132 config NFS_USE_LEGACY_DNS
133 bool "Use the legacy NFS DNS resolver"
136 The kernel now provides a method for translating a host name into an
137 IP address. Select Y here if you would rather use your own DNS
142 config NFS_USE_KERNEL_DNS
144 depends on NFS_V4 && !NFS_USE_LEGACY_DNS
150 depends on NFS_FS && SUNRPC_DEBUG