I have done something wrong i guess :-( I did /sbin/mkinitrd -v -f /boot/initrd-2.6.8-1.521smp.img 2.6.8-1.521smp In my modprobe.conf is only alias scsi_host_adapter 3w-9xxx If I try to reboot the boot process stops with the following error messages idel: I/O resource 0x170-0x177 not free. idel: ports already in use, skipping probe Red Hat nash version 3.5.22 starting mkrootdev: label / not found mount: error 2 on mounting ext3 pivotroot: pivot_root(/sysroot,/sysroot/initrd) failed: 2 umount /initrd/proc failed: 2 Kernel panic: No init found. Try passing init- option to kernel. Any idea how I can solve this ? Erwin