On Oct 24, 2013, at 3:55 PM, Akemi Yagi wrote: On Thu, Oct 24, 2013 at 12:47 PM, Tony Schreiner <anthony.schreiner at bc.edu<mailto:anthony.schreiner at bc.edu>> wrote: I had used the the 6.3 net installer disk (and the 6.4 repo) which I noticed had kernel 2.6.32-279, so I retrieved that kernel from the vault and it works. The 279 and earlier kernels don't display any ipmi messages during boot (in dmesg) The system is not ipmi capable I don't believe, should I be looking there? Try adding the following kernel parameters and see if the 6.4 kernel boots: ipmi_si.tryacpi=0 ipmi_si.trydmi=0 ipmi_si.trydefaults=0 Akemi ______________________________________________ Akemi Awesome, that did the trick. I do not see those parameters in https://www.kernel.org/doc/Documentation/kernel-parameters.txt There is an error in the boot to 2.6.32.-358.23.2 irq 19: nobody cared (try booting with the "irqpoll" option) I've added the irqpoll parameter and the message goes away.Is there any downside to using it? Tony