Hi Niki, On Sun, 2007-05-27 at 21:35 +0200, Niki Kovacs wrote: > And that WAS the problem. Curiously, I hesitated over it. In fact, > Debian initrd files are called initrd.img-2.6.18-something... while > CentOS initrd is initrd-2.6.18-something.img. Hence the confusion. You could consider installing GRUB from CentOS in the MBR of the CentOS disk (though, the boot partition would be fine too), and add something like --- title CentOS root (hd1) makeactive chainloader +1 --- To your Debian GRUB configuration. This prevents that you'll have to update your Debian GRUB configuration again after n kernel updates (where n is the number set with the installonlyn yum plugin). -- Daniel