Hello!. I rebuilded my centos 3 with 2.4.x kernel to install a 2.6.x on there. I did it saving the .config file (config-2.4.21-27.0.2.EL) and then i have loaded it in the menuconfig of the 2.6.23. Afther that i rebuilded the kernel doing: make all make modules_install make install When they finish, the grub.conf looks ok (with the correct kernel) At the end, i reboot the machine but the kernel 2.4.x stills there. What im doing wrong ?? Thanks in advance!