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Add a sentence to the umount.8 man page to clarify the behaviour

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for forced dismount when used on an NFS mount point. Requested by
Jeremy Chadwick.
This is a content change.

MFC after:	2 weeks
This commit is contained in:
Rick Macklem 2011-05-31 18:27:18 +00:00
parent b398d10657
commit 6b43e31fe7
1 changed files with 4 additions and 1 deletions
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5
sbin/umount/umount.8
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@ -28,7 +28,7 @@
.\" @(#)umount.8 8.2 (Berkeley) 5/8/95
.\" $FreeBSD$
.\"
.Dd July 18, 2003
.Dd May 31, 2011
.Dt UMOUNT 8
.Os
.Sh NAME
@ -78,6 +78,9 @@ The file system is forcibly unmounted.
Active special devices continue to work,
but all other files return errors if further accesses are attempted.
The root file system cannot be forcibly unmounted.
For NFS, a forced dismount can take up to 1 minute or more to
complete against an unresponsive server and may throw away
data not yet written to the server for this case.
.It Fl h Ar host
Only file systems mounted from the specified host will be
unmounted.