在对一台Debian服务器执行更新时，发生如下错误：
QUOTE: Hit http://ftp.debian.org wheezy/main Translation-en Hit http://ftp.debian.org wheezy/non-free Translation-en Reading package lists... Done W: There is no public key available for the following key IDs: 9D6D8F6BC857C906 W: There is no public key available for the following key IDs: 7638D0442B90D010
一种方法如下：
QUOTE: # gpg --recv-keys 4D270D06F42584E6
# gpg --export 4D270D06F42584E6 | apt-key add -
另一种方法似乎更为简单：
QUOTE: # apt-get install debian-keyring debian-archive-keyring
# apt-key update
尝试了第二种方法，成功解决了public key的问题。 |