| dumpon.8 (85630) | dumpon.8 (89601) |
|---|---|
| 1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" From: @(#)swapon.8 8.1 (Berkeley) 6/5/93 | 1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" From: @(#)swapon.8 8.1 (Berkeley) 6/5/93 |
| 33.\" $FreeBSD: head/sbin/dumpon/dumpon.8 85630 2001-10-28 16:47:06Z n_hibma $ | 33.\" $FreeBSD: head/sbin/dumpon/dumpon.8 89601 2002-01-21 01:16:11Z sobomax $ |
| 34.\" 35.Dd May 12, 1995 36.Dt DUMPON 8 37.Os 38.Sh NAME 39.Nm dumpon 40.Nd "specify a device for crash dumps" 41.Sh SYNOPSIS --- 46 unchanged lines hidden (view full) --- 88to the device number of the designated 89.Ar special_file 90or to 91.Dv NODEV 92(meaning that no dumps are to be taken) if 93.Ar special_file 94is the text string: 95.Dq Li off . | 34.\" 35.Dd May 12, 1995 36.Dt DUMPON 8 37.Os 38.Sh NAME 39.Nm dumpon 40.Nd "specify a device for crash dumps" 41.Sh SYNOPSIS --- 46 unchanged lines hidden (view full) --- 88to the device number of the designated 89.Ar special_file 90or to 91.Dv NODEV 92(meaning that no dumps are to be taken) if 93.Ar special_file 94is the text string: 95.Dq Li off . |
| 96.Pp 97Since 98.Nm 99can only be called after the system enters single-user mode, 100it can not be used to create dumps 101for system panics during kernel initialization. In such cases you 102have to use 103.Va dumpdev 104tunable provided by 105.Xr loader 8 106instead. |
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| 96.Sh SEE ALSO 97.Xr sysctl 3 , 98.Xr fstab 5 , 99.Xr rc.conf 5 , 100.Xr config 8 , 101.Xr init 8 , | 107.Sh SEE ALSO 108.Xr sysctl 3 , 109.Xr fstab 5 , 110.Xr rc.conf 5 , 111.Xr config 8 , 112.Xr init 8 , |
| 113.Xr loader 8 , |
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| 102.Xr rc 8 , 103.Xr savecore 8 , 104.Xr swapon 8 , 105.Xr panic 9 106.Sh FILES 107.Bl -tag -width "/dev/{ad,da}?s?b" -compact 108.It Pa /dev/{ad,da}?s?b 109standard swap areas 110.It Pa /etc/rc.conf 111boot-time system configuration 112.El 113.Sh BUGS 114Because the filesystem layer is already dead by the time a crash dump 115is taken, it is not possible to send crash dumps directly to a file. | 114.Xr rc 8 , 115.Xr savecore 8 , 116.Xr swapon 8 , 117.Xr panic 9 118.Sh FILES 119.Bl -tag -width "/dev/{ad,da}?s?b" -compact 120.It Pa /dev/{ad,da}?s?b 121standard swap areas 122.It Pa /etc/rc.conf 123boot-time system configuration 124.El 125.Sh BUGS 126Because the filesystem layer is already dead by the time a crash dump 127is taken, it is not possible to send crash dumps directly to a file. |
| 116.Pp 117Since 118.Nm 119can only be called after the system enters single-user mode, 120it can not be used to create dumps 121for system panics during kernel initialization. | |
| 122.Sh HISTORY 123The 124.Nm 125command appeared in 126.Fx 2.1 . | 128.Sh HISTORY 129The 130.Nm 131command appeared in 132.Fx 2.1 . |