Using crash utility usage - cannot find booted kernel error (vmlinux)

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I'd like to make an analysis   in RH 5.5 for created vmcore file .


According to some docs  two kernel packages are required - kernel-debuginfo-version.arch.rpm and kernel-debuginfo-common-version.arch.rpm .



I have these ones :


# yum list | grep debug

kernel-debug.x86_64                    2.6.18-194.el5        installed
kernel-debug-devel.x86_64              2.6.18-194.el5        installed




Neither kernel-debug-common-* is not available .


I assume that due to this fact  I do not have /usr/lib/debug/lib/modules/ directory with vmlinix in order to proceed with vmcore  analysis .


# crash



crash: cannot find booted kernel -- please enter namelist argument


Please advise .



/Vlad .



Hi Vlad,


please have a look at either our ftp server or the yum utilities as they provide a feature to download debuginfo packages too.


Here are a few links about crash and its usage:


Hope that helps.