I've been struggling with it for over a week now, but am still unable to yaboot (though I think I've made some minimal progress). I have a G4/500 with linux on a dedicated external scsi drive (Adaptec 2906 card). Per OF, the card corresponds to: /pci@f2000000/pci-bridge@d/pci9004,7850@2/@2 (It is device 2 on the scsi chain, or at least that's what the back of the hard drive implies.) pdisk says the bootstrap partition is #2: Partition map (with 512 byte blocks) on '/dev/sda' #: type name length base ( size ) 1: Apple_UNIX_SVR2 / 7785303 @ 204 ( 3.7G) 2: Apple_HFS "bootstrap" 65638 @ 7785507 ( 32.0M) 3: Apple_UNIX_SVR2 swap 1048592 @ 7851145 (512.0M) [rest deleted] Set the relevant line in /boot/ofboot.b (which is cp'd from the menu_ofboot.b): " Booting Yaboot ..." cr " boot sd:2,yaboot" eval My /etc/yaboot.conf is as follows: -------------- default=Linux-Stable ## change to your bootstrap partition ie /dev/hda2 boot=/dev/sda2 device=sd: timeout=20 install=/boot/yaboot magicboot=/boot/ofboot.b image=/boot/vmlinux label=Linux-Stable root=/dev/sda1 read-only partition=2 append= "video=aty128fb:vmode:17;cmode:24" ----------------- Now, in OF, when I try to set sd as a devalias, it tells me the nvramrc isn't valid. When I printenv, I don't see it showing up anywhere (but maybe I don't know what to look for, exactly?). When in OF and I try to boot directly by providing the OF path manually, I get this error: method not found ; ihandle=ff9c4980 phandle=ff8a9708 method not found ihandle=ff9c4980 phandle=ff8a9708 can't OPEN: /pci@f2000000/.... {etc}. I don't know what this means or what to do with this information. (Anyone have any idea?) One last thing: I have managed in the past week to get ybin working (my bootstrap was mounted in the mtab). But I have no idea how to proceed from here. I'm about to start my medical internship, and will have no more time to fiddle with this starting about two weeks from now. Sorry to whine! :-) Any/all suggestions most welcome! Thanks! Tom Thomas Dilling, MD tdilling@mac.com