On May 25, 2016, at 11:21 PM, Hans Ecke <hans@ecke.ws> wrote:Frank,The error message means that the module ipmi_si could not find the IPMI hardware device to talk to.In the case of success it works like this:* you call modprobe ipmi_si* kernel loads that module into memory* kernel calls initialization routine within that module* initialization routine finds hardware device and tells the kernel that all is well* there is a song and dance involving udev to create the /dev/*ipmi* device nodes* ipmitool uses those device nodes to talk to the hardwareIn your case, this is what happened:* you call modprobe ipmi_si* kernel loads that module into memory* kernel calls initialization routine within that module* initialization routine does not find hardware device and tells the kernel that it failed* kernel unloads the module again. It passes a very short error status back to you. This is where the "Error inserting ... no such device" message comes from. This is also why "lsmod" does not show the ipmi_si module.* no /dev/*ipmi* device nodes were created* ipmitool does not see the device nodesIf you look at dmesg, the module initialization routine might have printed a more specific error message there. If you find such an error message, chances are you can use google to fix your situation. (or maybe you just need a different ipmi module for your computer)Hans_______________________________________________On Wed, May 25, 2016 at 5:20 AM, Frank Yu <flyxiaoyu@gmail.com> wrote:Hi all,
I am trying to load kernel module ipmi_si, while failed with error "No such device", truth is I can find file in ../kernel/drivers/char/ipmi/ipmi_si.ko. So why I can't load it?
Steps:
# ls -l /lib/modules/2.6.32-573.el6.x86_64/kernel/drivers/char/ipmi/ipmi_si.ko
-rwxr--r--. 1 root root 93080 Jul 23 2015 /lib/modules/2.6.32-573.el6.x86_64/kernel/drivers/char/ipmi/ipmi_si.ko
# modprobe ipmi_si
FATAL: Error inserting ipmi_si (/lib/modules/2.6.32-573.el6.x86_64/kernel/drivers/char/ipmi/ipmi_si.ko): No such device
# lsmod |grep ipmi
ipmi_devintf 7729 0
ipmi_poweroff 8532 0
ipmi_watchdog 17874 0
ipmi_msghandler 38701 3 ipmi_devintf,ipmi_poweroff,ipmi_watchdog
# ipmitool
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directoryWhat should I do if I want to setup IPMI on my centos host?
--Regards
Frank Yu
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