Hello Hubert, Sorry for the delay. > ipmi_destroy_user_Rsmp_74848fb7 It seems like modvesions problem to me. Does the i2c-impi directly include the modversions.h file? Anyway, you have the RedHat E. Linux so I would suggest to ask RedHat for that (or impi people) The kernel 2.4.21 is very old and unfortunately I cannot recall anything special about it. I would focus on the modversion problems -> most likely it is the case of troubles. I hope it helps, Regards Rudolf