memory for crash kernel 0x0 to 0x0 notwithin permissible range

Symptom

When the user finishes the RHEL5.7 operating system installation and enters into the operating system, a “Memory for crash kernel (0x0 to 0x0) notwithin permissible range” error message may appear as shown below:

Affected configurations

The above symptom is associated with, but not limited to, the following systems:

• All ThinkServer systems

Applies to:

• Red Hat Enterprise Linux 5
• Red Hat Enterprise Linux 5 x64

Additional Information:

This is an informative message only. This message is displayed any time memory is not being reserved for use by the kdump kernel such as the crash kernel parameter is not being passed on the kernel command line.

Solution

If you are not happy with ignoring that message I am going to post here how to remove it. This is one way that it can be done, if you know some other way you are more than welcome to post it here.

My solution is simple, as root you just need to edit your grub configuration and remove the quite option from the kernel line as follows:

 cd /boot/grub/

vi grub.conf

before:

title CentOS (2.6.18-194.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-194.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet
initrd /initrd-2.6.18-194.el5.img

after:

title CentOS (2.6.18-194.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-194.el5 ro root=/dev/VolGroup00/LogVol00 rhgb
initrd /initrd-2.6.18-194.el5.img

 That’s it, save, exit and reboot to check it:

# init 6