Hello all I think i need help from people that understand more then i how suse has designed the boot system I have a promise card, sx4000, for ide raid Please, no need to discuss about the merits or demerits of the card, or even the company , because that will not solve the actual problem (the mistake is already made ) The thing is that the card works well under suse 9.0 using default kernel from install cds (2.4.21-99-default), using one module that is available from promise site I have been trying to use suse 9.3 and that same kernel but without success. To perform the testing process i have been using vmware machines, even without the proper fasttrak module, because the problems arise before that becomes an issue. If i install suse 9.3, clone the proper line in grub or lilo, reboot to test, and then try to install the rpm of the default kernel from suse 9.0 The package installs clean, the lilo or grub gets modified, but the system will not boot the kernel 2.4.x, resulting in kernel panic , like unable to mount root in dev:08:02 or similar. Is the system unable to locate the proper initrd, althought it is there and the boot configuration is good ???? why ??? If i install suse 9.0 and then try to upgrade to suse 9.3, keeping the proper line under llilo or grup, the system will not boot with the old kernel, even if the vmlinuz-2.4.21-99-default, and the equivalent initrd-2.4.21-99-default are there, the proper /lib/modules/......... files are there, and the grup line is there, like it should ..... Why is so dificult to use a kernel 2.4.x on suse 9.3 ?? is it impossible ????? I keep a copy of /etc under /etc.copia/ and /boot under /boot.copia/, from suse 9.0 I even generated modprobe.conf from the old modules.conf, using some information that read from http://portal.suse.com/sdb/en/2004/02/migrating_to_26.html , before the upgrade Still the old 2.4.x kernel will not boot Do i have to force the upgrade to keep some packages from the suse 9.0 version ?? (besides the kernel , of course ) Can anybody point me out ?? Many many thanks Yours truly André