what GRUB options for HURD installation ?

[arnuld]

i followed this guide:  http://www.debian.org/ports/hurd/hurd-install

and in section "5 - booting GNU/Hurd" i see this:

Assuming that the first drive (i.e. `(hd0)') is the master on the
secondary controller, we would have:

 grub> kernel (hd0,0)/boot/gnumach.gz root=device:hd2s1 -s
  [Multiboot-elf, ...]


read this:  "Assuming that the first drive (i.e. `(hd0)') is the
master on the secondary controller"

what does that mean, if anything ?

i have simply an ATA attached and this is the only disk i have on my
system and i am installing it on 4th partition of my hard-disk
{(hd0,3)  for GRUB }


[root@arch gnu]# fdisk -l

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

  Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1          25      200781   83  Linux
/dev/sda2              26         281     2056320   82  Linux swap / Solaris
/dev/sda3             282        6607    50813595    5  Extended
/dev/sda4            6608        6850     1951897+  83  Linux
/dev/sda5             282        1741    11727418+  83  Linux
/dev/sda6            1742        4174    19543041   83  Linux
/dev/sda7            4175        6607    19543041   83  Linux
[root@arch gnu]#


this from my Arch GNU/Linux distro. nevermind the "sda". actually
"Arch" uses sda for both ATA and Serial-ATA hard-disks and i have an
ATA, (not Serial-ATA).

so i do not understand which one i should use:

this:       grub> kernel (hd0,0)/boot/gnumach.gz root=device:hd1s3 -s

or this:  grub> kernel (hd0,0)/boot/gnumach.gz root=device:hd1s4 -s

or this:  grub> kernel (hd0,0)/boot/gnumach.gz root=device:hd0s3 -s

or this:  grub> kernel (hd0,0)/boot/gnumach.gz root=device:hd0s4 -s


any idea ??

--
http://arnuld.blogspot.com/