fopen(/conf/config.xml): failed to open stream:

[bchristensen at conservationnw.org]

 Hello, I am not a regular user or networking expert; I work for a small
non-profit that had a pfSense/FreeBSD firewall set up on a Soekris net4801.
The person who set it up has disappeared. When moving our office today, I
attempted to log on via a console cable to change the IP addresses, which I
sort of know how to do, but it froze up and had to be hard-rebooted. Now,
while it manages to boot all the way to the console setup menu, I receive
the error:

 Warning: fopen(/conf/config.xml): failed to open stream: No such file or
directory in /etc/inc/xmlparse.inc on line 149. Error: could not open xml
input

 Only the shell (#8), PfTop (9), and traffic logs (10) from the menu work;
the rest return same error

 The only thing I can see in the bootup that might be an issue is a line
reading: pci0 
 at device 18.1 (no driver attached)
 and then later the same error for device 18.5, but I don't know if that
was all there before the disaster  

 I looked in the files named, but only know
enough to follow the script
for so long. I found some posts online about fstab and something not
mounting, and had a look at that file. The only line in /etc/fstab  is
 /dev/ufs/pfSense /ufs ro 1 1  

 That probably doesn't help, but...  

 If you have any ideas, please let me know. RIght now I am sleeping on the
new office floor (don't live here) until it's fixed :)

 THANK YOU!!!

 -- 
 BRC