Home / server / Questions / 671701
Accepted
lobi
Asked: 2015-02-27 09:16:05 +0800 CST

IPMI web management on Supermicro not working: "Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0:..." and "Invalid Channel 255"

  • 772

Troubleshooting an IPMI issue on a centos 6.5 server. Specifically, I am not able to set up IPMI web management due to errors when trying to work with IPMI LAN settings.

I get the following error when I type ipmitool lan print:

[root@]# ipmitool lan print
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory
Get Channel Info command failed
Invalid Channel 255

Almost all google/stackexchange answers to these problems result in the answer found here ipmitool - can't find /dev/ipmi0 or /dev/ipmidev/0, however this supermicro server has the same exact ipmi kernel modules loaded as my other supermicro server as shown below:

[root@SERVER_WITHOUT_WORKING_IPMI]# modprobe --showconfig | grep ipmi
alias platform:ipmi_si ipmi_devintf
[root@SERVER_WITH_WORKING_IPMI]# modprobe --showconfig | grep ipmi
alias platform:ipmi_si ipmi_devintf

Therefore, I suspect this is not a problem related to kernel modules...

Any assistance on this is greatly appreciated. Note that this device is in production, so I have to be careful with "trying things out". Also note that I am relatively new to linux (network engineer here).

Thanks everyone...(this is my first post!)

ipmi

1 Answers

  1. Best Answer

    Did the following:

    lsmod | grep ipmi

    ...and this showed that the ipmi_devintf module was NOT loaded. Did modprobe and loaded this and it worked.

    However, I still can't ping the ipmi interface even though I verified correct network config <-- this is a separate problem that I will need to look into.

    • 0