布布吐 | Bubuto

最近运行sudo apt－get update时遇到警告，英文系统：
W: GPG error: http://download.bitdefender.com bitdefender Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A373FB480EC4FE05
W: You may want to run apt-get update to correct these problems

中文系统显示如下：
GPG签名验证错误： http://packages.medibuntu.org intrepid Release: 由于没有公钥，下列签名无法进行验证： NO_PUBKEY 2EBC26B60C5A2783


类似于这样的问题，我肯定不是第一个遇到的，google里一搜索，马上就有答案了。
解决方法：
gpg –keyserver subkeys.pgp.net –recv 0EC4FE05
gpg –export –armor 0EC4FE05 | sudo apt-key add -

说明：
若缺少其他公钥，则将命令中两处0EC4FE05改为NO_PUBKEY A373FB480EC4FE05中最后8位即可！

xxxx@ubuntu:~$ gpg --keyserver subkeys.pgp.net --recv 0EC4FE05
gpg: directory `/home/xxxx/.gnupg' created
gpg: new configuration file `/home/xxxx/.gnupg/gpg.conf' created
gpg: WARNING: options in `/home/xxxx/.gnupg/gpg.conf' are not yet active during this run
gpg: keyring `/home/xxxx/.gnupg/secring.gpg' created
gpg: keyring `/home/xxxx/.gnupg/pubring.gpg' created
gpg: requesting key 0EC4FE05 from hkp server subkeys.pgp.net
gpg: /home/xxxx/.gnupg/trustdb.gpg: trustdb created
gpg: key 0EC4FE05: public key "BitDefender Packages " imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1
xxxx@ubuntu:~$ gpg --export --armor 0EC4FE05 | sudo apt-key add -
OK

问题解决！记录于此。