It worked flawlessly!

I used the hexedit program and verified it with the mount command as 
described below.

I only have one question:
Writing the disk using this command:

dd if=generic-pc-1.32.img.uncompressed of=/dev/<your-SG20-disk>

It didn't append the 'bs=16k' option at the end as described on the 
m0n0wall web site here:
<http://m0n0.ch/wall/installation_generic.php>

So I didn't use that either, but I was just wondering if it would have 
done the write any differently.

Either way, I am now using the web GUI, so thank you very much and also 
for the suggestions from others.

Joe



On 10/02/2010 12:17 PM, Joey Morin wrote:
> On Sat, Oct 2, 2010 at 11:30 AM, Lee Sharp<leesharp at hal dash pc dot org>  wrote:
>
>    
>> On 10/02/2010 10:39 AM, Joe wrote:
>>      
>>> ** Is there a way to choose one of the above NICs by mounting the image
>>> in Linux and editing something?
>>>        
>> No good.  There is no linux driver for this filesystem.  You need a FreeBSD
>> system to mount the compressed filesystem.  At that point you can mount the
>> image to change both the current config, and the default config so you are
>> not in this situation again.
>>
>>      
> under linux:
> fetch the latest generic m0n0wall image and uncompress it
> gzip -d<  generic-pc-1.32.img>  generic-pc-1.32.img.uncompressed
> mount -t ufs -o loop,ufstype=44bsd,offset=8192
> generic-pc-1.32.img.uncompressed mnt/
>
> however, this will fail unless your kernel has write support for ufs.  the
> default kernel for debian/ubuntu does not.  you can compile your own kernel:
> http://ghantoos.org/2009/04/04/mounting-ufs-in-readwrite-under-linux/
>
> once mounted read/write, you can edit the config file
> vi mnt/conf/config.xml
> search for sis0, which is the default lan driver m0n0wall ships with, and
> change it to fxp0.  save the file, and unmount the image.
>
> if you don't feel up to compiling your own kernel, there's another (dirty)
> way:
> hexedit generic-pc-1.32.img.uncompressed
>
> tab over to the ascii side on the right and search (/) for sis0.  you can
> type over the sis with fxp and save the file (ctrl-x).  what you've just
> done is modify the raw ufs file system that is the m0n0wall.  the only
> change you've made are three characters, which happen to be the three
> characters that define the driver for the lan interface.  you can confirm
> this by mounting the modified image:
> mount -t ufs -o ro,loop,ufstype=44bsd,offset=8192
> generic-pc-1.32.img.uncompressed mnt/
> and check the config file:
> less mnt/conf/config.xml
>
> for either method, after you've modified the image install the SG20's disk
> into your linux machine, and dd if=generic-pc-1.32.img.uncompressed
> of=/dev/<your-SG20-disk>.  be very careful, as you'll have to do this as
> root.  don't clobber your linux system disk.
>
> with luck, you'll now be able to boot the SG20 with the newly copied
> m0n0wall image, and the intel pro nic will be the lan interface.  from
> there, you should be able to get at the webgui and finish the config.
>
> i have used both of these approaches in the past to configure
> headless/keyless m0n0walls.
>
> jj
>
>