Your boot-sector is lost (or not found) Have you checked that BIOS is trying to boot from the correct disk. My MSI-card bit me exacltly like this last time i plugged inn an aditional disk. I had rebooted, but not powercycled. When I powercycled, the BIOS detected new HW and came up with the incredible idea that the new factory-blank disk should be the primary boot-device and not those I had configured as boot-disks (SDS mirror i my case) -- and for some reason it thought there was a boot-sector there and started to execute the random bits..probably \0 == NOOP. Seems like a bad BIOS-bug. My fix was simply to reconfigure the BIOS boot-order (and make sure I powercycle next time I rearrange HW that supposedly was hot-swap.. ). If that's not the case you'll probably need to do installgrub (manpage has an example but I dont know if it needs special tweaking for zfs-boot) This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss