The original poster asked how to remove old kernels. That is a good indication of the OP's level of knowledge. It is very reasonable to conclude that the OP did not compile his own kernel so although no doubt an interesting debate and educational, it is most likely not applicable to the OP's situation and beyond the OP's knowledge/skill level (so rpm -e would be the logical suggestion to his question). I agree with the earlier suggestion of running the following as root: First determine what kernel version you are running (should be the latest one installed - if not I suggest you re-boot to the latest kernel as you will not be able to remove an older one which is active). Do this as follows: # uname -a Next determine which kernels are installed. Do this as follows (-q for query, -a for all, then pipe that to grep for the results with the word kernel in it). # rpm -qa | grep kernel Finally remove the older kernels by doing the following for each kernel you wish to remove (good advice to keep at least current and previous version): # rmp -e older-kernel-exactly-as-spelled-in-previous-query This will also take care of modifying your grub.conf file. Jacques B.