Hi
Thank you very much for your reply. really appreciated!
Yes I also did several native installs. I rebooted the machine in recue mode and
did several native installs with several diferent grub.conf 's but i can't get him to boot :/
In my opinion the bios has a problem with this new sata2 disk and the os detects a different layout than the bios does. I think a solution would be to define the disk layout als bootparameter for the kernel but i can only do that when i set a user defined layout on diks in the is bios self. And there is no such posibility in the bios
Anyway after such a struggle a decided just to use a triware controller instead. Machine is running fine now.