I just installed CentOS 4.6 (because I had 4.6 media handy) on a new system, which has a SuperMicro PDSMi mobo with an E4600 CPU.
I then did yum update to get to 4.7, although I don't think that's relevant to my query.
I wondered why "shutdown -h" would not power down the system. I then also discovered that the soft power button did not initiate a switch to runlevel 0 to do a controlled shutdown.
When I looked in grub.conf, I discovered that the installer had included the boot parameters "noapic acpi=off". I removed them and rebooted, and then found that both soft shutdown from the power button and the final poweroff worked fine. I haven't stressed the system yet, but it seems to boot and run fine.
My question is (at last): why did the installer decide it necessary to include "noapic acpi=off"? Previous installs of CentOS on other hardware have not done that.
Cheers Tony
On Thu, 2008-11-20 at 10:43 +0000, Tony Mountifield wrote:
I just installed CentOS 4.6 (because I had 4.6 media handy) on a new system, which has a SuperMicro PDSMi mobo with an E4600 CPU.
I then did yum update to get to 4.7, although I don't think that's relevant to my query.
I wondered why "shutdown -h" would not power down the system. I then also discovered that the soft power button did not initiate a switch to runlevel 0 to do a controlled shutdown.
When I looked in grub.conf, I discovered that the installer had included the boot parameters "noapic acpi=off". I removed them and rebooted, and then found that both soft shutdown from the power button and the final poweroff worked fine. I haven't stressed the system yet, but it seems to boot and run fine.
My question is (at last): why did the installer decide it necessary to include "noapic acpi=off"? Previous installs of CentOS on other hardware have not done that.
---- I don't believe that anaconda would do that on its own.
It would however, append any kernel options that you used when you booted the installation disk so that's the likely place where it came from.
Craig
In article 1227190609.31040.291.camel@lin-workstation.azapple.com, Craig White craigwhite@azapple.com wrote:
On Thu, 2008-11-20 at 10:43 +0000, Tony Mountifield wrote:
My question is (at last): why did the installer decide it necessary to include "noapic acpi=off"? Previous installs of CentOS on other hardware have not done that.
I don't believe that anaconda would do that on its own.
It would however, append any kernel options that you used when you booted the installation disk so that's the likely place where it came from.
Ah, you're right - thanks! I used a pxe boot server to install, and had left those options in the config file from tests with a previous box.
Mystery solved :-)
Tony
-
Craig White -
tony＠softins.clara.co.uk