系统升级错误-2006-11-23

W: There are no public key available for the following key IDs:
A70DAF536070D3A1
W: You may want to run apt-get update to correct these problems
# gpg --keyserver wwwkeys.eu.pgp.net --recv-keys A70DAF536070D3A1 && gpg --armor --export A70DAF536070D3A1 | apt-key add -
gpg: keyring `/root/.gnupg/secring.gpg' created
gpg: requesting key 6070D3A1 from hkp server wwwkeys.eu.pgp.net
gpg: /root/.gnupg/trustdb.gpg: trustdb created
gpg: key 6070D3A1: public key "Debian Archive Automatic Signing Key (4.0/etch) " imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1
OK