Showing posts with label vmcore. Show all posts
Showing posts with label vmcore. Show all posts

Thursday, 21 April 2016

Package require to analyze kernel core dump in RHEL system


To analyze the system crash dump file (vmcore) , we must have crash and debuginfo package installed on system. 

To install the crash package in your system, run the following as root:
#yum install crash
To install the kernel-debuginfo package, make sure that you have the yum-utils package installed and run the following command as root:
#debuginfo-install kernel
If not able to download the debuginfo kernel package with above command, then download the package from ftp server: http://ftp.heanet.ie/mirrors/puias/updates/


For example to download the RHEL6 (32-bit) related debuginfo package from:
http://ftp.heanet.ie/mirrors/puias/updates/6Server/en/os/debug/i386/

For example to download the RHEL6 (64-bit) related debuginfo package from:
http://ftp.heanet.ie/mirrors/puias/updates/6Server/en/os/debug/x86_64/


Package need to download:
1) Determine the kernel version of generated "vmcore" system , by executing "uname -r" command
2) Download the kernel-debuginfo-`uname -r`.rpm and kernel-debuginfo-common-`uname -r`.rpm
3) Install the package through rpm command i.e "rpm -ivh <package name>