Impossible disable ipv6

Hello everyone, can someone explain to me why I can not disable IPV6 by volumio, I have tested many solutions that I found on the internet about internal functioning of all other distributions but not with volumio. I disabled all services that listen on ipv6 but I would like to boot the module was not loaded

Thank you in advance

If you have a raspberry pi you can try disabling it through /boot/cmdline.txt. You can add the option:

ipv6.disable=1

thanks for the reply!

I had not tried this solution, I do a test and I will tell you …
we hope …

best solution…
now the ipv6 is disabled

the next mission is remove the module from the kernel,
because at startup i have this message:

IPv6: Loaded, but administratively disabled, reboot required to enable …

meanwhile, thanks mr tux for the solution!