On Thu, Oct 27, 2011 at 09:18:56AM -0500, Matt Garman wrote: > I have a server running CentOS 6.0. Last night I replaced the CPU and > motherboard. Old hardware: Supermicro x8sil-f + x3440. New hardware: > Supermicro x9scl+-f + E3-1230. This is a new Sandy Bridge Xeon. > > Everything else remained the same, including an IBM m1015 SAS HBA. > This is just an IBM re-branded LSI 92xx-8i (9220-8i specifically I > believe), which uses the LSI SAS2008 chipset and the megaraid_sas > driver. It worked without any issue on the old motherboard/cpu. > However, with the new motherboard/cpu, the system makes it through the > BIOS POST without any issue. But about half-way through the kernel > initialization, it basically locks up. It will sit there for several > minutes, doing nothing, then start printing out error messages (I was > unable to get a screenshot or take note of the errors). > > But if I take the m1015 card out, the system boots quickly and without > issue, as it always has. > > I saw this post[1] on the forums, which suggested that Sandy Bridge > really needs 6.1, which, for those of us using CentOS, we can only get > sorta close to by using the continuous release. So I did a "yum > install centos-release-cr ; yum update". I let everything install > (there were no install errors or problems), and rebooted with the > m1015 in back in the system, but the problem remains. > > So now I'm at a loss. Anyone have any thoughts? > > [1] http://www.centos.org/modules/newbb/viewtopic.php?topic_id=33878&forum=56 SuperMicro actually has a FAQ[1] on a very similar issue: same motherboard, but an LSI 9240 RAID card (very similar to the IBM M1015, same actual chipset I believe), and CentOS 5.5. But the described problem is the same as mine. Simple fix: upgrade BIOS to v1.1a or later. Works for me! [1] http://www.supermicro.com/support/faqs/faq.cfm?faq=12830 Hope this helps anyone with the same problem. -Matt