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NFS: Update help text for CONFIG_NFS_FS

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Clean up: refresh the help text for Kconfig items related to the NFS
client.  Remove obsolete URLs, and make the language consistent among
the options.

Also move the ROOT_NFS config option next to the options related to the
NFS client.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2008-05-21 17:09:04 -04:00 committed by Trond Myklebust
parent b5418383ef
commit 6fb1bc1030
1 changed files with 57 additions and 58 deletions
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115
fs/Kconfig
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@ -1544,10 +1544,6 @@ config UFS_FS
The recently released UFS2 variant (used in FreeBSD 5.x) is
READ-ONLY supported.
If you only intend to mount files from some other Unix over the
network using NFS, you don't need the UFS file system support (but
you need NFS file system support obviously).
Note that this option is generally not needed for floppies, since a
good portable way to transport files and directories between unixes
(and even other operating systems) is given by the tar program ("man
@ -1587,6 +1583,7 @@ menuconfig NETWORK_FILESYSTEMS
Say Y here to get to see options for network filesystems and
filesystem-related networking code, such as NFS daemon and
RPCSEC security modules.
This option alone does not add any kernel code.
If you say N, all options in this submenu will be skipped and
@ -1595,76 +1592,92 @@ menuconfig NETWORK_FILESYSTEMS
if NETWORK_FILESYSTEMS
config NFS_FS
tristate "NFS file system support"
tristate "NFS client support"
depends on INET
select LOCKD
select SUNRPC
select NFS_ACL_SUPPORT if NFS_V3_ACL
help
If you are connected to some other (usually local) Unix computer
(using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
on that computer (the NFS server) using the Network File Sharing
protocol, say Y. "Mounting files" means that the client can access
the files with usual UNIX commands as if they were sitting on the
client's hard disk. For this to work, the server must run the
programs nfsd and mountd (but does not need to have NFS file system
support enabled in its kernel). NFS is explained in the Network
Administrator's Guide, available from
<http://www.tldp.org/docs.html#guide>, on its man page: "man
nfs", and in the NFS-HOWTO.
Choose Y here if you want to access files residing on other
computers using Sun's Network File System protocol. To compile
this file system support as a module, choose M here: the module
will be called nfs.
A superior but less widely used alternative to NFS is provided by
the Coda file system; see "Coda file system support" below.
To mount file systems exported by NFS servers, you also need to
install the user space mount.nfs command which can be found in
the Linux nfs-utils package, available from http://linux-nfs.org/.
Information about using the mount command is available in the
mount(8) man page. More detail about the Linux NFS client
implementation is available via the nfs(5) man page.
If you say Y here, you should have said Y to TCP/IP networking also.
This option would enlarge your kernel by about 27 KB.
Below you can choose which versions of the NFS protocol are
available in the kernel to mount NFS servers. Support for NFS
version 2 (RFC 1094) is always available when NFS_FS is selected.
To compile this file system support as a module, choose M here: the
module will be called nfs.
To configure a system which mounts its root file system via NFS
at boot time, say Y here, select "Kernel level IP
autoconfiguration" in the NETWORK menu, and select "Root file
system on NFS" below. You cannot compile this file system as a
module in this case.
If you are configuring a diskless machine which will mount its root
file system over NFS at boot time, say Y here and to "Kernel
level IP autoconfiguration" above and to "Root file system on NFS"
below. You cannot compile this driver as a module in this case.
There are two packages designed for booting diskless machines over
the net: netboot, available from
<http://ftp1.sourceforge.net/netboot/>, and Etherboot,
available from <http://ftp1.sourceforge.net/etherboot/>.
If you don't know what all this is about, say N.
If unsure, say N.
config NFS_V3
bool "Provide NFSv3 client support"
bool "NFS client support for NFS version 3"
depends on NFS_FS
help
Say Y here if you want your NFS client to be able to speak version
3 of the NFS protocol.
This option enables support for version 3 of the NFS protocol
(RFC 1813) in the kernel's NFS client.
If unsure, say Y.
config NFS_V3_ACL
bool "Provide client support for the NFSv3 ACL protocol extension"
bool "NFS client support for the NFSv3 ACL protocol extension"
depends on NFS_V3
help
Implement the NFSv3 ACL protocol extension for manipulating POSIX
Access Control Lists. The server should also be compiled with
the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option.
Some NFS servers support an auxiliary NFSv3 ACL protocol that
Sun added to Solaris but never became an official part of the
NFS version 3 protocol. This protocol extension allows
applications on NFS clients to manipulate POSIX Access Control
Lists on files residing on NFS servers. NFS servers enforce
ACLs on local files whether this protocol is available or not.
Choose Y here if your NFS server supports the Solaris NFSv3 ACL
protocol extension and you want your NFS client to allow
applications to access and modify ACLs on files on the server.
Most NFS servers don't support the Solaris NFSv3 ACL protocol
extension. You can choose N here or specify the "noacl" mount
option to prevent your NFS client from trying to use the NFSv3
ACL protocol.
If unsure, say N.
config NFS_V4
bool "Provide NFSv4 client support (EXPERIMENTAL)"
bool "NFS client support for NFS version 4 (EXPERIMENTAL)"
depends on NFS_FS && EXPERIMENTAL
select RPCSEC_GSS_KRB5
help
Say Y here if you want your NFS client to be able to speak the newer
version 4 of the NFS protocol.
This option enables support for version 4 of the NFS protocol
(RFC 3530) in the kernel's NFS client.
Note: Requires auxiliary userspace daemons which may be found on
http://www.citi.umich.edu/projects/nfsv4/
To mount NFS servers using NFSv4, you also need to install user
space programs which can be found in the Linux nfs-utils package,
available from http://linux-nfs.org/.
If unsure, say N.
config ROOT_NFS
bool "Root file system on NFS"
depends on NFS_FS=y && IP_PNP
help
If you want your system to mount its root file system via NFS,
choose Y here. This is common practice for managing systems
without local permanent storage. For details, read
<file:Documentation/filesystems/nfsroot.txt>.
Most people say N here.
config NFSD
tristate "NFS server support"
depends on INET
@ -1746,20 +1759,6 @@ config NFSD_V4
If unsure, say N.
config ROOT_NFS
bool "Root file system on NFS"
depends on NFS_FS=y && IP_PNP
help
If you want your Linux box to mount its whole root file system (the
one containing the directory /) from some other computer over the
net via NFS (presumably because your box doesn't have a hard disk),
say Y. Read <file:Documentation/filesystems/nfsroot.txt> for
details. It is likely that in this case, you also want to say Y to
"Kernel level IP autoconfiguration" so that your box can discover
its network address at boot time.
Most people say N here.
config LOCKD
tristate