My system crashed and even though I haven't been able to know what caused the crash after going through the usual logs: messages, dmesg, secure, etc. There's nothing valuable I have seen on them so I decided to follow a tutorial in how to run the crash application to see what might have happened. Every time I run it with:$ sudo crash System.map-3.10.0-123.el7 vmlinuz-3.10.0-123.el7 vmcoreI get the following error:  crash: vmlinuz-3.10.0-123.el7: not a supported file formatHere's the output:crash 7.0.9-5.el7_1Copyright (C) 2002-2014  Red Hat, Inc.Copyright (C) 2004, 2005, 2006, 2010  IBM CorporationCopyright (C) 1999-2006  Hewlett-Packard CoCopyright (C) 2005, 2006, 2011, 2012  Fujitsu LimitedCopyright (C) 2006, 2007  VA Linux Systems Japan K.K.Copyright (C) 2005, 2011  NEC CorporationCopyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.This program is free software, covered by the GNU General Public License,and you are welcome to change it and/or distribute copies of it undercertain conditions.  Enter help copying to see the conditions.This program has absolutely no warranty.  Enter help warranty for details.crash: vmlinuz-3.10.0-123.el7: not a supported file formatUsage:  crash [OPTION]... NAMELIST MEMORY-IMAGE[@ADDRESS] (dumpfile form)  crash [OPTION]... [NAMELIST]                  (live system form)Enter crash -h for details.I'm using CentOS 7. What might be wrong? And also, Any ideas how to get better information about the crash would be appreciated. 
After my system crashed and I run crash, but I get the following error: not a supported file format
linux;centos;kernel;debugging;crash
The vmlinuz format is compressed AFAIK. The steps are too long to copy-paste here, so I'm gonna provide a link instead.https://stackoverflow.com/a/30514503/3979290