Hi, I am trying to install the kernel src rpm that I've downloaded from the CentOS ftp, kernel-2.6.9-22.EL.src.rpm. I hope to compile the kernel with XFS enabled. However, I have tried to simply run: [root at se4 ~]# rpm -iv kernel-2.6.9-22.EL.src.rpm and it complains back: warning: group builder does not exist - using root warning: user builder does not exist - using root warning: group builder does not exist - using root warning: user builder does not exist - using root warning: group builder does not exist - using root warning: user builder does not exist - using root .... then an rpm -q kernel-2.6.9-22.EL.src.rpm says: package kernel-2.6.9-22.EL.src.rpm is not installed Anyone know what is going on?? ps. I have tried to install the CentOSplus kernel with xfs and that is completely unstable for me. thanks, Andrew