On Sat, 2 Oct 2004, Gene Heskett wrote:
> And one other minor detail should be mentioned, Jon.  Some, but not 
> all linux distributions disable the multiple lun scsi bus scans in 
> order to speed up the boot process.  Co-incidentally, some changers 
> have their robot mechanisms located at the same scsi buss address as 
> the drive itself, but at the next higher logical unit number, or 
> 'lun' in the slang.  Those distributions that disable this must have 
> their kernels re-compiled with this option enabled in order to find 
> and identify the changers robotics at boot time.  Without that, it 
> won't be found or usable.  Red Hat is one such distribution whose 
> default kernels do not spend the extra (maximum of 49 seconds if the 
> exact scsi-1 protocol is followed) time during the boot to do this.

Try adding something like `max_scsi_luns=7' to the kernel command line.

Gr{oetje,eeting}s,

                                                Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert AT linux-m68k 
DOT org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                                            -- Linus Torvalds