kurumin@dd33:~$ sudo apt-get update
Obtendo:1 http://ftp.us.debian.org etch Release.gpg [378B]
Obtendo:2 http://ftp.us.debian.org unstable Release.gpg [378B]
Atingido http://ftp.us.debian.org etch Release
Ign http://julio.gdhpress.com.br ./ Release.gpg
Atingido http://ftp.us.debian.org unstable Release
Obtendo:3 http://ftp.debian-unofficial.org sarge Release.gpg [189B]
Ign http://julio.gdhpress.com.br ./ Release
Obtendo:4 http://www.debian-multimedia.org etch Release.gpg [189B]
Obtendo:5 http://www.debian-multimedia.org sid Release.gpg [189B]
Obtendo:6 http://kanotix.com sid Release.gpg [189B]
Atingido http://ftp.us.debian.org etch/main Packages/DiffIndex
Atingido http://ftp.us.debian.org etch/contrib Packages/DiffIndex
Atingido http://ftp.us.debian.org etch/non-free Packages/DiffIndex
Atingido http://ftp.debian-unofficial.org sarge Release
Obtendo:7 http://www.debian-multimedia.org etch Release [5560B]
Atingido http://kanotix.com sid Release
Ign http://julio.gdhpress.com.br ./ Packages/DiffIndex
Ign http://julio.gdhpress.com.br ./ Packages
Atingido http://ftp.us.debian.org unstable/main Packages/DiffIndex
Atingido http://ftp.us.debian.org unstable/contrib Packages/DiffIndex
Atingido http://ftp.us.debian.org unstable/non-free Packages/DiffIndex
Ign http://ftp.debian-unofficial.org sarge/main Packages/DiffIndex
Obtendo:8 http://www.debian-multimedia.org sid Release [5560B]
Ign http://kanotix.com sid/main Packages/DiffIndex
Atingido http://julio.gdhpress.com.br ./ Packages
Ign http://www.debian-multimedia.org etch/main Packages/DiffIndex
Ign http://kanotix.com sid/contrib Packages/DiffIndex
Ign http://kanotix.com sid/non-free Packages/DiffIndex
Ign http://ftp.debian-unofficial.org sarge/contrib Packages/DiffIndex
Ign http://ftp.debian-unofficial.org sarge/non-free Packages/DiffIndex
Ign http://www.debian-multimedia.org sid/main Packages/DiffIndex
Atingido http://kanotix.com sid/main Packages
Ign http://ftp.debian-unofficial.org sarge/restricted Packages/DiffIndex
Atingido http://ftp.debian-unofficial.org sarge/main Packages
Atingido http://www.debian-multimedia.org etch/main Packages
Atingido http://kanotix.com sid/contrib Packages
Atingido http://ftp.debian-unofficial.org sarge/contrib Packages
Atingido http://ftp.debian-unofficial.org sarge/non-free Packages
Atingido http://www.debian-multimedia.org sid/main Packages
Atingido http://kanotix.com sid/non-free Packages
Atingido http://ftp.debian-unofficial.org sarge/restricted Packages
Baixados 11,1kB em 4s (2557B/s)
Lendo lista de pacotes... Pronto
W: Não existem chaves públicas para os seguintes IDs de chaves:
A70DAF536070D3A1
W: Não existem chaves públicas para os seguintes IDs de chaves:
A70DAF536070D3A1
W: Você terá que executar apt-get update para corrigir esses problemas

aqui no kurumin 6.0 tá dando esse erro, alguem aí sabe a solução?

Já tentou isso primeiro?

sudo apt-get update
sudo apt-get upgrade

problema resolvido, era só fazer isso:

# gpg --keyserver hkp://wwwkeys.eu.pgp.net --recv-keys 6070D3A1
# gpg --armor --export 6070D3A1 | apt-key add -