X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fexportfs%2Fexportfs.man;h=2bd8e31519eb02fdbbf8f87531f9c5aded5cca1e;hp=510c48ff5372089cebbd0b98a9ce7ca4fdfbba96;hb=6bd461c4f1708b38f59f9f4a1bec881f027fd8aa;hpb=0fd2443ac44caadb57c8c393d015582aafad1250 diff --git a/utils/exportfs/exportfs.man b/utils/exportfs/exportfs.man index 510c48f..2bd8e31 100644 --- a/utils/exportfs/exportfs.man +++ b/utils/exportfs/exportfs.man @@ -2,8 +2,8 @@ .\" exportfs(8) .\" .\" Copyright (C) 1995 Olaf Kirch -.\" Modifications 1999 Neil Brown -.TH exportfs 8 "7 Sep 1999" +.\" Modifications 1999-2003 Neil Brown +.TH exportfs 8 "18 July 2003" .SH NAME exportfs \- maintain list of NFS exported file systems .SH SYNOPSIS @@ -15,6 +15,8 @@ exportfs \- maintain list of NFS exported file systems .br .BI "/usr/sbin/exportfs [-v] .br +.BI "/usr/sbin/exportfs -f" +.br .SH DESCRIPTION The .B exportfs @@ -39,7 +41,32 @@ without modifying using .BR exportfs . .P -Any export requests which identify a specific host (rather than a +.B exportfs +and it's partner program +.B mountd +work in one of two modes, a legacy mode which applies to 2.4 and +earlier versions of the Linux kernel, and a new mode which applies to +2.6 and later versions providing the +.B nfsd +virtual filesystem has been mounted at +.B /proc/fs/nfsd +or +.BR /proc/fs/nfs . +If this filesystem is not mounted in 2.6, the legacy mode is used. +.P +In the new mode, +.B exportfs +does not give any information to the kernel but only provides it to +.B mountd +through the +.B /var/lib/nfs/xtab +file. +.B mountd +will listen to requests from the kernel and will provide information +as needed. +.P +In the legacy mode, +any export requests which identify a specific host (rather than a subnet or netgroup etc) are entered directly into the kernel's export table as well as being written to .BR /var/lib/nfs/xtab . @@ -71,10 +98,15 @@ with /etc/exports. It removes entries in /var/lib/nfs/xtab which are deleted from /etc/exports, and remove any entries from the kernel export table which are no longer valid. .TP -.TP .B -u Unexport one or more directories. .TP +.B -f +In 'new' mode, flush everything out of the kernels export table. Any +clients that are active will get new entries added by +.B mountd +when they make their next request. +.TP .B -v Be verbose. When exporting or unexporting, show what's going on. When displaying the current export list, also display the list of export @@ -106,7 +138,7 @@ entries in (unless the .B -i option is given). -In addition, the administrator may overide any options from these sources +In addition, the administrator may override any options from these sources using the .B -o argument which takes a comma-separated list of options in the same fashion @@ -124,7 +156,7 @@ take place immediately after parsing the command line and updating the file. .P The default export options are -.BR sync,ro,root_squash,no_delay . +.BR sync,ro,root_squash,wdelay . .\" -------------------- Unexporting Directories ------------------ .SS Unexporting Directories The third synopsis shows how to unexported a currently exported directory. @@ -135,7 +167,7 @@ all entries listed in are removed from the kernel export tables, and the file is cleared. This effectively shuts down all NFS activity. .P -To remove individial export entries, one can specify a +To remove individual export entries, one can specify a .I host:/path pair. This deletes the specified entry from .B xtab @@ -152,7 +184,9 @@ option, the list of flags pertaining to each export are shown in addition. .\" -------------------- EXAMPLES --------------------------------- .SH EXAMPLES The following adds all directories listed in -.B /etc/exports to /var/lib/nfs/xtab +.B /etc/exports +to +.B /var/lib/nfs/xtab and pushes the resulting export entries into the kernel: .P .nf @@ -182,7 +216,7 @@ across reboots. .P When unexporting a network or domain entry, any current exports to members of this group will be checked against the remaining valid exports and -if they themselves are nolonger valid they will be removed. +if they themselves are no longer valid they will be removed. .P .\" -------------------- SEE ALSO -------------------------------- .SH SEE ALSO