I have a system with two hard-drives connected to a Promise Ultra-100 controller. I have created a raid partition that takes up most of the drives but have left room for a partition to be mounted as /boot. I did this as my understanding is that grub cannot boot directly to a raided partion (/dev/md0). In this case the partition for boot would be /dev/hde3 . When I try to run grub-install I get the following message : /dev/hde does not have any corresponding BIOS drive Any ideas what this means. I am using kernel 4.1 built with support for the controller built into the kernel (not a module). It also has raid1 and reiserfs for the raid partition although I am using ext2 for the /boot partition. It is the latest version of grub as found on unstable debian. Any Ideas? I am new to the world of grub. Sorry if this has been asked before but I could not find it in the mailing list archives. Matt _______________________________________________ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub