41 lines
952 B
Groff
41 lines
952 B
Groff
.Dd February 2, 2015
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.Dt UMOUNT 8
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.Os ubase
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.Sh NAME
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.Nm umount
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.Nd unmount file systems
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.Sh SYNOPSIS
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.Nm
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.Op Fl fln
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.Ar target...
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.Nm
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.Op Fl fln
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.Fl a
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.Sh DESCRIPTION
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.Nm
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detaches the
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.Ar target
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filesystem(s). A file system is specified by giving the directory where it
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has been mounted. Giving the special device on which the file system
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lives may also work, but is obsolete, mainly because it will fail in
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case this device was mounted on more than one directory.
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.Sh OPTIONS
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.Bl -tag -width Ds
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.It Fl a
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All of the file systems described in
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.Pa /proc/mounts
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are unmounted. The proc filesystem is not unmounted.
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.It Fl f
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Force unmount (in case of an unreachable NFS server).
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.It Fl l
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Lazy unmount. Detach the filesystem from the fs hierarchy now, and cleanup
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all references to the filesystem as soon as it is not busy anymore.
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.It Fl n
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Unmount without writing in
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.Pa /etc/mtab .
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This is the default action.
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.El
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.Sh SEE ALSO
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.Xr umount 2 ,
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.Xr mount 8
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