Building Kernels and Kernel modules

Hi,
	I've been working on Linux on ia32 for some time now.  This week we
decided to see what it would take to port our drivers to ultraLinux.

	I have a ultra spar 60, on which I installed aurora 1.0 (I didn't
worry about X at this stage).  I seem to have two problems at the moment:

1)  Building the 2.4.20 Kernel
I have downloaded the 2.4.20 Kernel from www.kernel.org and started with the
default config file (defconfig) from the /usr/src/linux/arch/sparc64
directory.  The first time I built the Kernel all was OK.  However it didn't
load because the required scsi driver wasn't included.  So I ran make
xconfig to add it.  But then after a 
make dep
make vmlinux

I go an error from fonts.c in driver/video indicating that no fonts were
defined.

#ifdef NO_FONTS
#error No fonts configured.
#endif

This error wouldn't go away until I did a

make mrproper
make oldconfig
make dep
make vmlinux

I then made another change to the Kernel config and the same thing happened.

Can anyone throw some light on this?

Also, in an effort to reduce the number of modules, and therefore the build
time, I have tries to trim the config.  I seem to have done something that
produces the following message when the boot process tries to start init

INIT:  cannot fork, retry..

it does this ad infinitum.



2) 32 bit User / 64 Bit Kernel
For sparc64 I realise that userland is 32 bits and Kernel space is 64 bits.
I have built a Kernel module in userland and I am trying to load it into the
Kernel.  I get the following error message:

[root@icarus kernel]# /sbin/insmod fred.o
fsx25.o: ELF file fred.o not for this architecture

I assume this is to do with the 32/64 bit issue.  What magic do I need to
place in my Makefile or which tool do I need to use to build a module that
can be loaded.



I have spent a couple of hours searching with google but haven't found any
help with either of these two matters.  I hope someone can help.


Thanks

Kevin Curtis
Linux Development
FarSite Communications Ltd
[email protected]
tel:   +44 1256 330461
fax:  +44 1256 854931
http://www.farsite.co.uk