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.\" 3. All advertising materials mentioning features or use of this software 138fae3551SRodney W. Grimes.\" must display the following acknowledgement: 148fae3551SRodney W. Grimes.\" This product includes software developed by the University of 158fae3551SRodney W. Grimes.\" California, Berkeley and its contributors. 168fae3551SRodney W. Grimes.\" 4. Neither the name of the University nor the names of its contributors 178fae3551SRodney W. Grimes.\" may be used to endorse or promote products derived from this software 188fae3551SRodney W. Grimes.\" without specific prior written permission. 198fae3551SRodney W. Grimes.\" 208fae3551SRodney W. Grimes.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 218fae3551SRodney W. Grimes.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 228fae3551SRodney W. Grimes.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 238fae3551SRodney W. Grimes.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 248fae3551SRodney W. Grimes.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 258fae3551SRodney W. Grimes.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 268fae3551SRodney W. Grimes.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 278fae3551SRodney W. Grimes.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 288fae3551SRodney W. Grimes.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 298fae3551SRodney W. Grimes.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 308fae3551SRodney W. Grimes.\" SUCH DAMAGE. 318fae3551SRodney W. Grimes.\" 324be4929cSGarrett Wollman.\" From: @(#)savecore.8 8.1 (Berkeley) 6/5/93 337f3dea24SPeter Wemm.\" $FreeBSD$ 348fae3551SRodney W. Grimes.\" 354be4929cSGarrett Wollman.Dd September 23, 1994 368fae3551SRodney W. Grimes.Dt SAVECORE 8 379fe48c6eSRuslan Ermilov.Os 388fae3551SRodney W. Grimes.Sh NAME 398fae3551SRodney W. Grimes.Nm savecore 408fae3551SRodney W. Grimes.Nd "save a core dump of the operating system" 418fae3551SRodney W. Grimes.Sh SYNOPSIS 427c7fb079SRuslan Ermilov.Nm 438fae3551SRodney W. Grimes.Fl c 447c7fb079SRuslan Ermilov.Nm 45628d16a3SDoug Barton.Fl C 46628d16a3SDoug Barton.Op Fl v 47628d16a3SDoug Barton.Op Ar directory device 48628d16a3SDoug Barton.Nm 494c98f36dSDag-Erling Smørgrav.Op Fl fkvz 50edc4f96eSBill Fenner.Op Ar directory Op Ar device ... 518fae3551SRodney W. Grimes.Sh DESCRIPTION 521fa8142dSRuslan ErmilovThe 531fa8142dSRuslan Ermilov.Nm 541fa8142dSRuslan Ermilovutility 55edc4f96eSBill Fennercopies a core dump into 561fa8142dSRuslan Ermilov.Ar directory , 57edc4f96eSBill Fenneror the current working directory if no 581fa8142dSRuslan Ermilov.Ar directory 59edc4f96eSBill Fennerargument is given, 608fae3551SRodney W. Grimesand enters a reboot message and information about the core dump into 618fae3551SRodney W. Grimesthe system log. 628fae3551SRodney W. Grimes.Pp 638fae3551SRodney W. GrimesThe options are as follows: 64f9b52c93SPhilippe Charnier.Bl -tag -width indent 65628d16a3SDoug Barton.It Fl C 66628d16a3SDoug BartonCheck to see if a dump exists, 67628d16a3SDoug Bartonand display a brief message to indicate the status. 68628d16a3SDoug BartonAn exit status of 0 indicates that a dump is there, 69628d16a3SDoug Barton1 indicates that none exists. 70628d16a3SDoug BartonThis option is compatible only with the 71628d16a3SDoug Barton.Op Fl v 72628d16a3SDoug Bartonoption. 738fae3551SRodney W. Grimes.It Fl c 74f9b52c93SPhilippe CharnierClear the dump, so that future invocations of 75f9b52c93SPhilippe Charnier.Nm 768fae3551SRodney W. Grimeswill ignore it. 778fae3551SRodney W. Grimes.It Fl f 78edc4f96eSBill FennerForce a dump to be taken even if the dump was cleared. 794c98f36dSDag-Erling Smørgrav.It Fl k 804c98f36dSDag-Erling SmørgravDo not clear the dump after saving it. 818fae3551SRodney W. Grimes.It Fl v 82f9b52c93SPhilippe CharnierPrint out some additional debugging information. 838fae3551SRodney W. Grimes.It Fl z 84f9b52c93SPhilippe CharnierCompress the core dump and kernel (see 85dff462c3SKris Kennaway.Xr gzip 1 ) . 868fae3551SRodney W. Grimes.El 878fae3551SRodney W. Grimes.Pp 881fa8142dSRuslan ErmilovThe 891fa8142dSRuslan Ermilov.Nm 901fa8142dSRuslan Ermilovutility 91edc4f96eSBill Fennerlooks for dumps on each device specified by the 92edc4f96eSBill Fenner.Ar device 93edc4f96eSBill Fennerargument(s), or on each device in 94edc4f96eSBill Fenner.Pa /etc/fstab 951fa8142dSRuslan Ermilovmarked as 961fa8142dSRuslan Ermilov.Dq dump 971fa8142dSRuslan Ermilovor 981fa8142dSRuslan Ermilov.Dq swap . 991fa8142dSRuslan ErmilovThe 1001fa8142dSRuslan Ermilov.Nm 1011fa8142dSRuslan Ermilovutility 102edc4f96eSBill Fennerchecks the core dump in various ways to make sure that it is complete. 1038fae3551SRodney W. GrimesIf it passes these checks, it saves the core image in 1048fae3551SRodney W. Grimes.Ar directory Ns Pa /vmcore.# 105edc4f96eSBill Fennerand information about the core in 106edc4f96eSBill Fenner.Ar directory Ns Pa /info.# 1078fae3551SRodney W. GrimesThe ``#'' is the number from the first line of the file 1088fae3551SRodney W. Grimes.Ar directory Ns Pa /bounds , 1098fae3551SRodney W. Grimesand it is incremented and stored back into the file each time 110f9b52c93SPhilippe Charnier.Nm 1118fae3551SRodney W. Grimessuccessfully runs. 1128fae3551SRodney W. Grimes.Pp 1131fa8142dSRuslan ErmilovThe 1141fa8142dSRuslan Ermilov.Nm 1151fa8142dSRuslan Ermilovutility 1168fae3551SRodney W. Grimesalso checks the available disk space before attempting to make the copies. 1178fae3551SRodney W. GrimesIf there is insufficient disk space in the file system containing 1188fae3551SRodney W. Grimes.Ar directory , 1198fae3551SRodney W. Grimesor if the file 1208fae3551SRodney W. Grimes.Ar directory Ns Pa /minfree 1218fae3551SRodney W. Grimesexists and the number of free kilobytes (for non-superusers) in the 1228fae3551SRodney W. Grimesfile system after the copies were made would be less than the number 1238fae3551SRodney W. Grimesin the first line of this file, the copies are not attempted. 1248fae3551SRodney W. Grimes.Pp 1258fae3551SRodney W. GrimesIf 126f9b52c93SPhilippe Charnier.Nm 1278fae3551SRodney W. Grimessuccessfully copies the kernel and the core dump, the core dump is cleared 1288fae3551SRodney W. Grimesso that future invocations of 129f9b52c93SPhilippe Charnier.Nm 1308fae3551SRodney W. Grimeswill ignore it. 1318fae3551SRodney W. Grimes.Pp 1321fa8142dSRuslan ErmilovThe 1331fa8142dSRuslan Ermilov.Nm 1341fa8142dSRuslan Ermilovutility 1358fae3551SRodney W. Grimesis meant to be called near the end of the initialization file 1368fae3551SRodney W. Grimes.Pa /etc/rc 1378fae3551SRodney W. Grimes(see 1388fae3551SRodney W. Grimes.Xr rc 8 ) . 1398fae3551SRodney W. Grimes.Sh BUGS 140edc4f96eSBill FennerThe minfree code does not consider the effect of compression or sparse files. 1418fae3551SRodney W. Grimes.Sh SEE ALSO 142dff462c3SKris Kennaway.Xr gzip 1 , 143e8ae41c3SRuslan Ermilov.Xr getbootfile 3 , 144e2fb2db5SNick Hibma.Xr dumpon 8 , 1458fae3551SRodney W. Grimes.Xr syslogd 8 1468fae3551SRodney W. Grimes.Sh HISTORY 1478fae3551SRodney W. GrimesThe 1488fae3551SRodney W. Grimes.Nm 149629e80efSPhilippe Charnierutility appeared in 1508fae3551SRodney W. Grimes.Bx 4.1 . 151