18fae3551SRodney W. Grimes.\" Copyright (c) 1980, 1991, 1993 28fae3551SRodney W. Grimes.\" The Regents of the University of California. All rights reserved. 38fae3551SRodney W. Grimes.\" 48fae3551SRodney W. Grimes.\" Redistribution and use in source and binary forms, with or without 58fae3551SRodney W. Grimes.\" modification, are permitted provided that the following conditions 68fae3551SRodney W. Grimes.\" are met: 78fae3551SRodney W. Grimes.\" 1. Redistributions of source code must retain the above copyright 88fae3551SRodney W. Grimes.\" notice, this list of conditions and the following disclaimer. 98fae3551SRodney W. Grimes.\" 2. Redistributions in binary form must reproduce the above copyright 108fae3551SRodney W. Grimes.\" notice, this list of conditions and the following disclaimer in the 118fae3551SRodney W. Grimes.\" documentation and/or other materials provided with the distribution. 128fae3551SRodney W. Grimes.\" 4. Neither the name of the University nor the names of its contributors 138fae3551SRodney W. Grimes.\" may be used to endorse or promote products derived from this software 148fae3551SRodney W. Grimes.\" without specific prior written permission. 158fae3551SRodney W. Grimes.\" 168fae3551SRodney W. Grimes.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 178fae3551SRodney W. Grimes.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 188fae3551SRodney W. Grimes.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 198fae3551SRodney W. Grimes.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 208fae3551SRodney W. Grimes.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 218fae3551SRodney W. Grimes.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 228fae3551SRodney W. Grimes.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 238fae3551SRodney W. Grimes.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 248fae3551SRodney W. Grimes.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 258fae3551SRodney W. Grimes.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 268fae3551SRodney W. Grimes.\" SUCH DAMAGE. 278fae3551SRodney W. Grimes.\" 284be4929cSGarrett Wollman.\" From: @(#)savecore.8 8.1 (Berkeley) 6/5/93 297f3dea24SPeter Wemm.\" $FreeBSD$ 308fae3551SRodney W. Grimes.\" 314be4929cSGarrett Wollman.Dd September 23, 1994 328fae3551SRodney W. Grimes.Dt SAVECORE 8 339fe48c6eSRuslan Ermilov.Os 348fae3551SRodney W. Grimes.Sh NAME 358fae3551SRodney W. Grimes.Nm savecore 368fae3551SRodney W. Grimes.Nd "save a core dump of the operating system" 378fae3551SRodney W. Grimes.Sh SYNOPSIS 387c7fb079SRuslan Ermilov.Nm 398fae3551SRodney W. Grimes.Fl c 407c7fb079SRuslan Ermilov.Nm 41628d16a3SDoug Barton.Fl C 42628d16a3SDoug Barton.Op Fl v 43628d16a3SDoug Barton.Op Ar directory device 44628d16a3SDoug Barton.Nm 454c98f36dSDag-Erling Smørgrav.Op Fl fkvz 46edc4f96eSBill Fenner.Op Ar directory Op Ar device ... 478fae3551SRodney W. Grimes.Sh DESCRIPTION 481fa8142dSRuslan ErmilovThe 491fa8142dSRuslan Ermilov.Nm 501fa8142dSRuslan Ermilovutility 51edc4f96eSBill Fennercopies a core dump into 521fa8142dSRuslan Ermilov.Ar directory , 53edc4f96eSBill Fenneror the current working directory if no 541fa8142dSRuslan Ermilov.Ar directory 55edc4f96eSBill Fennerargument is given, 568fae3551SRodney W. Grimesand enters a reboot message and information about the core dump into 578fae3551SRodney W. Grimesthe system log. 588fae3551SRodney W. Grimes.Pp 598fae3551SRodney W. GrimesThe options are as follows: 60f9b52c93SPhilippe Charnier.Bl -tag -width indent 61628d16a3SDoug Barton.It Fl C 62628d16a3SDoug BartonCheck to see if a dump exists, 63628d16a3SDoug Bartonand display a brief message to indicate the status. 64628d16a3SDoug BartonAn exit status of 0 indicates that a dump is there, 65628d16a3SDoug Barton1 indicates that none exists. 66628d16a3SDoug BartonThis option is compatible only with the 67628d16a3SDoug Barton.Op Fl v 68628d16a3SDoug Bartonoption. 698fae3551SRodney W. Grimes.It Fl c 70f9b52c93SPhilippe CharnierClear the dump, so that future invocations of 71f9b52c93SPhilippe Charnier.Nm 728fae3551SRodney W. Grimeswill ignore it. 738fae3551SRodney W. Grimes.It Fl f 74edc4f96eSBill FennerForce a dump to be taken even if the dump was cleared. 754c98f36dSDag-Erling Smørgrav.It Fl k 764c98f36dSDag-Erling SmørgravDo not clear the dump after saving it. 778fae3551SRodney W. Grimes.It Fl v 78f9b52c93SPhilippe CharnierPrint out some additional debugging information. 798fae3551SRodney W. Grimes.It Fl z 80f9b52c93SPhilippe CharnierCompress the core dump and kernel (see 81dff462c3SKris Kennaway.Xr gzip 1 ) . 828fae3551SRodney W. Grimes.El 838fae3551SRodney W. Grimes.Pp 841fa8142dSRuslan ErmilovThe 851fa8142dSRuslan Ermilov.Nm 861fa8142dSRuslan Ermilovutility 87edc4f96eSBill Fennerlooks for dumps on each device specified by the 88edc4f96eSBill Fenner.Ar device 89edc4f96eSBill Fennerargument(s), or on each device in 90edc4f96eSBill Fenner.Pa /etc/fstab 911fa8142dSRuslan Ermilovmarked as 921fa8142dSRuslan Ermilov.Dq dump 931fa8142dSRuslan Ermilovor 941fa8142dSRuslan Ermilov.Dq swap . 951fa8142dSRuslan ErmilovThe 961fa8142dSRuslan Ermilov.Nm 971fa8142dSRuslan Ermilovutility 98edc4f96eSBill Fennerchecks the core dump in various ways to make sure that it is complete. 998fae3551SRodney W. GrimesIf it passes these checks, it saves the core image in 1008fae3551SRodney W. Grimes.Ar directory Ns Pa /vmcore.# 101edc4f96eSBill Fennerand information about the core in 102edc4f96eSBill Fenner.Ar directory Ns Pa /info.# 1038fae3551SRodney W. GrimesThe ``#'' is the number from the first line of the file 1048fae3551SRodney W. Grimes.Ar directory Ns Pa /bounds , 1058fae3551SRodney W. Grimesand it is incremented and stored back into the file each time 106f9b52c93SPhilippe Charnier.Nm 1078fae3551SRodney W. Grimessuccessfully runs. 1088fae3551SRodney W. Grimes.Pp 1091fa8142dSRuslan ErmilovThe 1101fa8142dSRuslan Ermilov.Nm 1111fa8142dSRuslan Ermilovutility 1128fae3551SRodney W. Grimesalso checks the available disk space before attempting to make the copies. 1138fae3551SRodney W. GrimesIf there is insufficient disk space in the file system containing 1148fae3551SRodney W. Grimes.Ar directory , 1158fae3551SRodney W. Grimesor if the file 1168fae3551SRodney W. Grimes.Ar directory Ns Pa /minfree 1178fae3551SRodney W. Grimesexists and the number of free kilobytes (for non-superusers) in the 1188fae3551SRodney W. Grimesfile system after the copies were made would be less than the number 1198fae3551SRodney W. Grimesin the first line of this file, the copies are not attempted. 1208fae3551SRodney W. Grimes.Pp 1218fae3551SRodney W. GrimesIf 122f9b52c93SPhilippe Charnier.Nm 1238fae3551SRodney W. Grimessuccessfully copies the kernel and the core dump, the core dump is cleared 1248fae3551SRodney W. Grimesso that future invocations of 125f9b52c93SPhilippe Charnier.Nm 1268fae3551SRodney W. Grimeswill ignore it. 1278fae3551SRodney W. Grimes.Pp 1281fa8142dSRuslan ErmilovThe 1291fa8142dSRuslan Ermilov.Nm 1301fa8142dSRuslan Ermilovutility 1318fae3551SRodney W. Grimesis meant to be called near the end of the initialization file 1328fae3551SRodney W. Grimes.Pa /etc/rc 1338fae3551SRodney W. Grimes(see 1348fae3551SRodney W. Grimes.Xr rc 8 ) . 1358fae3551SRodney W. Grimes.Sh SEE ALSO 136dff462c3SKris Kennaway.Xr gzip 1 , 137e8ae41c3SRuslan Ermilov.Xr getbootfile 3 , 138e2fb2db5SNick Hibma.Xr dumpon 8 , 1398fae3551SRodney W. Grimes.Xr syslogd 8 1408fae3551SRodney W. Grimes.Sh HISTORY 1418fae3551SRodney W. GrimesThe 1428fae3551SRodney W. Grimes.Nm 143629e80efSPhilippe Charnierutility appeared in 1448fae3551SRodney W. Grimes.Bx 4.1 . 1456087df9eSRuslan Ermilov.Sh BUGS 1466087df9eSRuslan ErmilovThe minfree code does not consider the effect of compression or sparse files. 147