[..] > Can anyone tell me what i must do for compile the kernel at 64 bit ? if the procedure is different for this situation? FTP to ftp.parisc-linux.org and change to the cvs tree and download the gcc and the binutils from there * They are 64bit * and make sure you have the correct modutils for your kernel. The compiler should be called something like hppa64-gcc. Hope this helps.