Re: [cobalt-users] Raq4 - Kernel 2.4 Upgrade Woes

[Duncan Laurie <duncan@xxxxxxxxxxxx>]

Josh Trutwin wrote:
> 2) Set the "btoip" in the cobalt's rom
>
> During bootup, hit the spacebar to go to the rom menu (not the boot
> monitor -- 'q' out of it if you get there).  Once you're there, type
> "lowlevel", then "cmos".  Set the BTO (Build To Order) server's IP
> address -- in this case, the IP of the server with the /nfsroot-x86
> that is NFS exported.  This is done with a command like
>
>     btoip 192 168 0 1
>
> Note the spaces instead of the dots separating the numbers in the
> address.
> </snip>
>
> Unfortunately, my lowlevel BIOS menu does not have a "cmos" option.  Here
> is what I have:  (sorry for the quoting method, I'm lazy...)
> Any thoughts?  boot from net by default is looking for /nfsboot-x86 on
> 192.168.0.1, which is my gateway, 192.169.0.4 is my Debian NFS
> server....
>

It looks like the howto makes a few assumptions about the setup...
In particular, the btoip option is only available on 2.9.x and 2.10.x
roms... It was added to support netbooting across different segments;
if it is not provided (or not supported by the rom version) then this
address is acquired from the DHCP server "routers" option, i.e.:

subnet 192.168.0.0 netmask 255.255.255.0 {
    range dynamic-bootp 192.168.0.200 192.168.0.210;
    option routers 192.168.0.4;
    option broadcast-address 192.168.0.255;
}

> I noticed this on my last attempt, probably why my first Debian go didn't
> work, but it still doesn't boot from ROM then mount my HD.

You could also try overriding the "zero-page" data that linux uses
to determine the root device with a kernel command line parameter:

Cobalt:Main Menu> boot
Cobalt:Boot Menu> set_params "root=/dev/hda1"


-duncan