umount(ADM)                     19 June 1992                     umount(ADM)


 Name

    umount - unmount a filesystem

 Syntax

    /etc/umount special-device

 Description

    The umount command announces to the system that the removable file struc-
    ture previously mounted on device special-device is to be removed.  Any
    pending I/O for the file system is completed, and the file structure is
    flagged as clean.  For a detailed explanation of the mounting process,
    see mount(ADM).

 File

    /etc/mnttab     Mount table

 See also

    mount(ADM), mount(S), mnttab(F)

 Diagnostics

    device busy    An executing process is using a file on the named file-
                   system, often caused by someone working in the filesystem.

 Standards conformance

    umount is conformant with:

    AT&T SVID Issue 2;
    and X/Open Portability Guide, Issue 3, 1989.