tftp arcload on a indigo2

[Jorge Salamero Sanz <bencer@cauterized.net>]

hi all,

i'm trying to setup a diskless indigo2 following julien's arcload howto but i 
get into this problem:

>> bootp():
Setting $netaddr to 192.168.10.1 (from server 192.168.10.254)
Obtaining  from server 192.168.10.254                        
48272+608+4208+304+352+19608d+1872+3936 entry: 0x91ff2e10    
ARCLoad version 0.5 (Debian 0.5-7 M32) (c) 2004-5 Stanislaw Skowronek
Loading configuration for 'ip22(2626)'...                            
Setting $netaddr to 192.168.10.1 (from server 192.168.10.254)        
Obtaining /etc/arc.cf from server 192.168.10.254                     
Invalid token '}' in state NOMATCH (expected '{' or STRING).         
Failed.                                                              

the environment is:

>> printenv                                                          
OSLoader=arcload                                                     
OSLoadFilename=ip22(2626)                                            
AutoLoad=Yes                                                         
TimeZone=PST8PDT                                                     
console=d
diskless=1
dbaud=9600
volume=0
sgilogo=y
autopower=y
eaddr=08:00:69:09:c9:6a
ConsoleOut=serial(0)
ConsoleIn=serial(0)
cpufreq=174
OSLoadPartition=bootp():
netaddr=192.168.10.1
dlserver=192.168.10.254
>>

and this is my arc.cf:

/tftpboot# cat arc.cf
append "root=/dev/nfs";
append "ro";
append "console=ttyS0";

ip22 {
        2626 {
                description "debian";
                image "bootp():/vmlinux";
        }

        single {
                description "single";
                append "single";
        }
}

no matter where i place the arc.cf, the same error. aftpd doesn't send it 
neither:

==> syslog <==
Nov 20 15:59:33 sphinx dhcpd: BOOTREQUEST from 08:00:69:09:c9:6a via eth1
Nov 20 15:59:33 sphinx dhcpd: BOOTREPLY for 192.168.10.1 to indie        
(08:00:69:09:c9:6a) via eth1                                             

==> atftpd.log <==
Nov 20 15:59:34 sphinx atftpd[12979.-1219355728]: Creating new socket:
192.168.10.254:4029                                                   
Nov 20 15:59:34 sphinx atftpd[12979.-1219355728]: Serving /tftpboot/arc.ecoff
to 192.168.10.1:8884                                                         
Nov 20 15:59:34 sphinx atftpd[12979.-1219355728]: Aborting transfer          
Nov 20 15:59:34 sphinx atftpd[12979.-1219355728]: Server thread exiting 

where do you think i could be missing something ?