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32 .\" @(#)swapon.8 6.3 (Berkeley) 3/16/91
34 .\" Sun Dec 27 12:31:30 1992: Modified by faith@cs.unc.edu
35 .\" Sat Mar 6 20:46:02 1993: Modified by faith@cs.unc.edu
36 .\" Sat Oct 9 09:35:30 1993: Converted to man format by faith@cs.unc.edu
37 .\" Sat Nov 27 20:22:42 1993: Updated authorship information, faith@cs.unc.edu
38 .\" Mon Sep 25 14:12:38 1995: Added -v and -p information
39 .\" Tue Apr 30 03:32:07 1996: Added some text from A. Koppenhoefer
41 .TH SWAPON 8 "25 September 1995" "Linux 1.x" "Linux Programmer's Manual"
43 swapon, swapoff \- enable/disable devices and files for paging and swapping
45 .B /sbin/swapon [\-h \-V]
47 .B /sbin/swapon \-a [\-v] [\-e]
49 .BI "/sbin/swapon [\-v] [\-p " "priority" "] " " specialfile " ...
53 .B /sbin/swapoff [\-h \-V]
57 .BI /sbin/swapoff " specialfile " ...
60 is used to specify devices on which paging and swapping are to take place.
62 The device or file used is given by the
64 parameter. It may be of the form
68 to indicate a device by label or uuid.
72 normally occur in the system multi-user initialization file
74 making all swap devices available, so that the paging and swapping activity
75 is interleaved across several devices and files.
77 Normally, the first form is used:
80 All devices marked as ``swap'' swap devices in
82 are made available, except for those with the ``noauto'' option.
83 Devices that are already running as swap are silently skipped.
90 makes swapon silently skip devices that do not exist.
96 Use the partition that has the specified
105 This option is only available if
107 was compiled under and is used under a 1.3.2 or later kernel.
109 is a value between 0 and 32767. Higher numbers indicate higher
112 for a full description of swap priorities. Add
114 to the option field of
120 Display swap usage summary by device. Equivalent to "cat /proc/swaps".
121 Not available before Linux 2.1.25.
124 Use the partition that has the specified
137 disables swapping on the specified devices and files.
140 flag is given, swapping is disabled on all known swap devices and files
148 on a file with holes.
149 Swap over NFS may not work.
160 standard paging devices
163 standard (SCSI) paging devices
166 ascii filesystem description table
170 command appeared in 4.0BSD.