ubuntu 7.10 Gutsy can not disable ipv6

ok
ubuntu 7.10 gutsy cannot disable ipv6
add this text to the end of /etc/modprobe.d/blacklist

install ipv6 /bin/true

then

reboot

normally disable ipv6 on linux
add this text to the end of /etc/modprobe.d/blacklist

blacklist ipv6

then

reboot

but that code can not work with 7.10 gutsy version

oops
how to check if the ipv6 is disable?
you can use following cmd:

ifconfig 
ip a | grep inet6
lsmod | grep ipv6

for instance
before

lsmod | grep ipv6

will output

ipv6                  251393  335

after reboot server
lsmod | grep ipv6 will output nothing


update
now i find why 'blacklist ipv6' cat not work on ubuntu 7.10 gutsy version

first of all i install shorewall with default installation
and shorewall default will need nf_conntrack_h323, nf_nat_h323 these two module in linux kernel which is used by ipv6

here is perfect solution for disable ipv6 on ubuntu 7.10 gutsy version
add "blacklist ipv6" to /etc/modprobe.d/blacklist
copy the file /usr/share/doc/shorewall/default-config/modules to /etc/shorewall, edit /etc/shorewall/modules file, comment nf_nat_h323 and nf_conntrack_h323 these two module, then reboot your server