Hello,<br><br>My servers didn't crash during the week-end which is a good sign.<br>However I'm still trying to get a dump in /var/crash. For this I need an<br>init ramdisk that's RDAC & MPP enabled. As I previously said I am<br>
using LSI's drivers in order to access my SAN:<br><br><a href="http://www.lsi.com/rdac/ds4000.html">http://www.lsi.com/rdac/ds4000.html</a><br><br>The instalation procedure is easy. The driver package listed above comes<br>
with a SHELL script that builds a custom initrd which then gets copied in /boot:<br><br>[xxx@localhost ~]$ ls -l /boot/mpp-2.6.18-128.2.1.el5.img <br>-rw------- 1 root root 4049795 Jul 20 15:28 /boot/mpp-2.6.18-128.2.1.el5.img<br>
<br>At this point I'm not sure if it's safe use /sbin/mkdumprd along with a custom<br>/etc/kdump.conf that includes all the drivers in the above ramdisk image.<br><br>Do you guys have any experience at all with this kind of stuff?<br>
<br>Regards,<br><br>-Andrei<br><br><br><div class="gmail_quote">On Fri, Jul 17, 2009 at 2:26 PM, Matty <span dir="ltr"><<a href="mailto:matty91@gmail.com" target="_blank">matty91@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><div></div><div>On Fri, Jul 17, 2009 at 11:50 AM, Andrei F<<a href="mailto:frunzales@gmail.com" target="_blank">frunzales@gmail.com</a>> wrote:<br>
> Hi,<br>
><br>
> I've configured my servers as described here:<br>
><br>
> <a href="http://prefetch.net/blog/index.php/2009/07/06/using-kdump-to-get-core-files-on-fedora-and-centos-hosts/" target="_blank">http://prefetch.net/blog/index.php/2009/07/06/using-kdump-to-get-core-files-on-fedora-and-centos-hosts/</a><br>
><br>
> When I try to start the kdump service via service kdump start, I get the<br>
> following warnings:<br>
><br>
> [root@lweb2 boot]# service kdump start<br>
> No kdump initial ramdisk found. [WARNING]<br>
> Rebuilding /boot/initrd-2.6.18-92.1.22.el5kdump.img<br>
> Starting kdump:<br>
> [FAILED]<br>
><br>
> First of all I like the idea of automatically building an initrd image with<br>
> kdump support, but<br>
> I also need MPP support. Just to give you an example, this is how both<br>
> machines are booting up:<br>
><br>
> title RDAC CentOS (2.6.18-92.1.22.el5) with MPP<br>
> root (hd0,0)<br>
> kernel /vmlinuz-2.6.18-92.1.22.el5 ro root=/dev/VolGroup00/LogVol00<br>
> initrd /mpp-2.6.18-92.1.22.el5.img<br>
><br>
> At this point I'm wondering how to generate an initrd image with mpp & kdump<br>
> support.<br>
><br>
><br>
> Also /var/log/messages gives me this:<br>
><br>
> Jul 17 11:42:27 lweb2 kdump: No crashkernel parameter specified for running<br>
> kernel<br>
> Jul 17 11:42:27 lweb2 kdump: failed to start up<br>
><br>
> I assume that once the server is being rebooted with the correct kernel<br>
> arguments like<br>
> crashkernel=128M@16M and the correct initrd with mpp & kdump support the<br>
> service<br>
> should start just fine.<br>
<br>
</div></div>You are correct. The init script checks the kernel command line<br>
(/proc/cmdline) for the crashkernel line. If it's not present, it will<br>
fail to initialize.<br>
<div><div></div><div><br>
- Ryan<br>
--<br>
<a href="http://prefetch.net" target="_blank">http://prefetch.net</a><br>
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</div></div></blockquote></div><br>