tftp problems

[Ian Duggan]

I'm having problems getting L4 to boot using grub and tftp. My grub config looks
like this:

title = ChacmOS on Sopwith
kernel = (nd)/tftpboot/chacmos/rmgr -sigma0 -roottask
module = (nd)/tftpboot/chacmos/x86-kernel
module = (nd)/tftpboot/chacmos/sigma0
module = (nd)/tftpboot/chacmos/booter
module = (nd)/tftpboot/chacmos/memsvr
module = (nd)/tftpboot/chacmos/namesvr
module = (nd)/tftpboot/chacmos/ext2fs
module = (nd)/tftpboot/chacmos/ramdisk
module = (nd)/tftpboot/chacmos/shell

It gets as far as retrieving rmgr via tftp (I see it get requested in the logs),
but the machine reboots itself as it is loading the rmgr image. It prints out
the "[Multiboot-elf blah blah" stuff and does a reboot before anything related
to x86-kernel is printed to the screen. This happens very quickly.

If I move the first two files to the boot floppy I am using, things boot fine.
This config works:

title = ChacmOS on Sopwith (Floppy)
kernel = (fd0)/rmgr -sigma0 -roottask
module = (fd0)/x86-kernel
module = (nd)/tftpboot/chacmos/sigma0
module = (nd)/tftpboot/chacmos/booter
module = (nd)/tftpboot/chacmos/memsvr
module = (nd)/tftpboot/chacmos/namesvr
module = (nd)/tftpboot/chacmos/ext2fs
module = (nd)/tftpboot/chacmos/ramdisk
module = (nd)/tftpboot/chacmos/shell


There is something in the grub/tftp boot process that differs from what it does
when loading the files from floppy that causes problems. It seems that maybe it
is starting to execute stuff before it has everything in place? I am using grub
0.90 from the Debian source.

Any ideas? What else can I do to try to track down the problem?

--Ian

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ian Duggan                    address@hidden
                              http://www.ianduggan.net