1config NFS_FS 2 tristate "NFS client support" 3 depends on INET && FILE_LOCKING 4 depends on BKL # fix as soon as lockd is done 5 select LOCKD 6 select SUNRPC 7 select NFS_ACL_SUPPORT if NFS_V3_ACL 8 help 9 Choose Y here if you want to access files residing on other 10 computers using Sun's Network File System protocol. To compile 11 this file system support as a module, choose M here: the module 12 will be called nfs. 13 14 To mount file systems exported by NFS servers, you also need to 15 install the user space mount.nfs command which can be found in 16 the Linux nfs-utils package, available from http://linux-nfs.org/. 17 Information about using the mount command is available in the 18 mount(8) man page. More detail about the Linux NFS client 19 implementation is available via the nfs(5) man page. 20 21 Below you can choose which versions of the NFS protocol are 22 available in the kernel to mount NFS servers. Support for NFS 23 version 2 (RFC 1094) is always available when NFS_FS is selected. 24 25 To configure a system which mounts its root file system via NFS 26 at boot time, say Y here, select "Kernel level IP 27 autoconfiguration" in the NETWORK menu, and select "Root file 28 system on NFS" below. You cannot compile this file system as a 29 module in this case. 30 31 If unsure, say N. 32 33config NFS_V3 34 bool "NFS client support for NFS version 3" 35 depends on NFS_FS 36 help 37 This option enables support for version 3 of the NFS protocol 38 (RFC 1813) in the kernel's NFS client. 39 40 If unsure, say Y. 41 42config NFS_V3_ACL 43 bool "NFS client support for the NFSv3 ACL protocol extension" 44 depends on NFS_V3 45 help 46 Some NFS servers support an auxiliary NFSv3 ACL protocol that 47 Sun added to Solaris but never became an official part of the 48 NFS version 3 protocol. This protocol extension allows 49 applications on NFS clients to manipulate POSIX Access Control 50 Lists on files residing on NFS servers. NFS servers enforce 51 ACLs on local files whether this protocol is available or not. 52 53 Choose Y here if your NFS server supports the Solaris NFSv3 ACL 54 protocol extension and you want your NFS client to allow 55 applications to access and modify ACLs on files on the server. 56 57 Most NFS servers don't support the Solaris NFSv3 ACL protocol 58 extension. You can choose N here or specify the "noacl" mount 59 option to prevent your NFS client from trying to use the NFSv3 60 ACL protocol. 61 62 If unsure, say N. 63 64config NFS_V4 65 bool "NFS client support for NFS version 4" 66 depends on NFS_FS 67 select SUNRPC_GSS 68 help 69 This option enables support for version 4 of the NFS protocol 70 (RFC 3530) in the kernel's NFS client. 71 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/. 75 76 If unsure, say Y. 77 78config NFS_V4_1 79 bool "NFS client support for NFSv4.1 (EXPERIMENTAL)" 80 depends on NFS_V4 && EXPERIMENTAL 81 help 82 This option enables support for minor version 1 of the NFSv4 protocol 83 (draft-ietf-nfsv4-minorversion1) in the kernel's NFS client. 84 85 If unsure, say N. 86 87config ROOT_NFS 88 bool "Root file system on NFS" 89 depends on NFS_FS=y && IP_PNP 90 help 91 If you want your system to mount its root file system via NFS, 92 choose Y here. This is common practice for managing systems 93 without local permanent storage. For details, read 94 <file:Documentation/filesystems/nfs/nfsroot.txt>. 95 96 Most people say N here. 97 98config NFS_FSCACHE 99 bool "Provide NFS client caching support" 100 depends on NFS_FS=m && FSCACHE || NFS_FS=y && FSCACHE=y 101 help 102 Say Y here if you want NFS data to be cached locally on disc through 103 the general filesystem cache manager 104 105config NFS_USE_LEGACY_DNS 106 bool "Use the legacy NFS DNS resolver" 107 depends on NFS_V4 108 help 109 The kernel now provides a method for translating a host name into an 110 IP address. Select Y here if you would rather use your own DNS 111 resolver script. 112 113 If unsure, say N 114 115config NFS_USE_KERNEL_DNS 116 bool 117 depends on NFS_V4 && !NFS_USE_LEGACY_DNS 118 select DNS_RESOLVER 119 select KEYS 120 default y 121