OK, I now have Solaris 10 installed on a 2nd internal HD. However, when I attempted to modify the grub boot loader I am stymied by the way FC3 set up my system. The grub entyr I put in is: title Solaris 10 rootnoverify (hd3,1) makeactive chainloader +1 Because I now have Sol10 on /dev/hdc, partition 1 But FC3 configured my system with the internal drive as an LVM (smart, I liked that, but now it's a new wrinkle). So my fstab is this: /dev/VolGroup00/LogVol00 / ext3 defaults 1 1 LABEL=/boot /boot ext3 defaults 1 2 none /dev/pts devpts gid=5,mode=620 0 0 none /dev/shm tmpfs defaults 0 0 none /proc proc defaults 0 0 none /sys sysfs defaults 0 0 /dev/VolGroup00/LogVol01 swap swap defaults 0 0 /dev/hdd /media/cdrw_dvdr auto noauto,user,exec,managed,ro 0 0 /dev/fd0 /media/floppy auto noauto,user,exec,managed 0 0 So when I attempt to perform the following sequence, grub does not recognize any of the drives I am calling for. (grub) root (hd0,0) (grub) setup (hd0) (grub) quit Can anyone help?