Hi Hans, Thanks for you reply. I have solved this problem by install DCMI, and there is no IPMI supported on my host. > On May 25, 2016, at 11:21 PM, Hans Ecke <hans at ecke.ws <mailto:hans at 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 hardware > > In 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 nodes > > If 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 at gmail.com <mailto:flyxiaoyu at 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 directory > > What should I do if I want to setup IPMI on my centos host? > > > -- > Regards > Frank Yu > > _______________________________________________ > CentOS-devel mailing list > CentOS-devel at centos.org <mailto:CentOS-devel at centos.org> > https://lists.centos.org/mailman/listinfo/centos-devel <https://lists.centos.org/mailman/listinfo/centos-devel> > > > _______________________________________________ > CentOS-devel mailing list > CentOS-devel at centos.org <mailto:CentOS-devel at centos.org> > https://lists.centos.org/mailman/listinfo/centos-devel <https://lists.centos.org/mailman/listinfo/centos-devel> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-devel/attachments/20160528/25bf732a/attachment-0008.html>