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08-25-2009
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A question about kernel module and system power-shutdown
Dear all, I've just installed a Vanilla kernel (last stable version downloaded from www.kernel.org) as an exercice in order to better understand how to compile linux kernel. I loaded the .config file of the current kernel (Redhat kernel) in the menuconfig in order to restore all already activated options and I just added the support for NTFS (read and write). I proceeded all instructions as was explained in the HOWTO and apparently it works pretty well. However, there is something a bit strange. Whenever I want to shutdown the system from the command line, I run Code:
# shutdown -h now the option -h actually shuts down electrically the computer. Yet, by this new kernel (fortuantely I conserved the old kernel!) I have the following output: Code:
# shutdown -h now . . here I see system processes and daemons being shutdown as usual . Turning off swap [ OK ] Turning off quotas [ OK ] Unmounting pipe file systems: [ OK ] Halting system... md: stopping all md devices. shutdown: hda System halted. So as you can see at the last line we see "System halted.", but right after that, the computer halts and nothing happens, whereas I excpect it to be shutdown electrically. But this does not happen and I have to push manually the power button. Is there a particular module that had to be activated in the new kernel that I forgot? Thanks in advance, Kind Regards, Dariyoosh  ---------- Post updated at 09:28 PM ---------- Previous update was at 09:27 PM ---------- Ok, finally I found the answer by myself! I checked the config file and there were several ACPI options activated (y). Surprisingly I had ACPI=off in /boot/grub/grub.conf, I just changed it to ACPI=on and it worked pretty well. Regards, Dariyoosh 
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