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Description of problem:
kdump seems to be enabled by default in RHEL6. After the installation I see the following in the boot messages:
no kdump initial ramdisk found. [WARNING]
Rebuilding /boot/initrd-2.6.32-23.el6.x86_64kdump.img
Starting kdump: [FAILED]

However kdump isn't even configured properly. There's no kernel commandline parameter specified. Starting system-config-kdump also failed with "This system does not have enough memory for kdump to be viable."

System has 512MB, shouldn't that be enough to run kdump?

Version-Release number of selected component (if applicable):
kexec-tools-2.0.0-68.el6.x86_64
system-config-kdump-2.0.2.1-11.el6.noarch

How reproducible:
always

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.

*** This bug has been marked as a duplicate of bug 581422 ***