The following signatures couldn’t be verified because the public key is not available:解决办法

昨晚下载puppet的apt源,这样日后可以很方便在内部测试puppet,不过发现一个问题,当客户端更新的时候,会遇到

W: GPG error: http://10.1.199.11 precise Release: 
The following signatures couldn't be verified because the public key is not available: 
NO_PUBKEY 1054B7A24BD6EC30

查了一下,这个错误比较普遍,只要你用手工的方式添加额外的源,基本都会碰到这个问题。

root@node18:~# apt-key list
/etc/apt/trusted.gpg
--------------------
pub   1024D/437D05B5 2004-09-12
uid                  Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
sub   2048g/79164387 2004-09-12
 
pub   1024D/FBB75451 2004-12-30
uid                  Ubuntu CD Image Automatic Signing Key <cdimage@ubuntu.com>


如果你添加的源是没有信任的key,就无法安装。

知道原因就好办了。

需要注意的是:gpg: key 4BD6EC30,这也就是下面运行export 的数字。你如果不是puppet,你就需要根据你gpg的key来调整。

# wget http://apt.puppetlabs.com/pubkey.gpg
 
 
# gpg --import pubkey.gpg
gpg: directory `/root/.gnupg' created
gpg: new configuration file `/root/.gnupg/gpg.conf' created
gpg: WARNING: options in `/root/.gnupg/gpg.conf' are not yet active during this run
gpg: keyring `/root/.gnupg/secring.gpg' created
gpg: keyring `/root/.gnupg/pubring.gpg' created
gpg: /root/.gnupg/trustdb.gpg: trustdb created
gpg: key 4BD6EC30: public key "Puppet Labs Release Key
 (Puppet Labs Release Key) <info@puppetlabs.com>" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
gpg: no ultimately trusted keys found
 
 
 
 
# gpg -a --export 4BD6EC30 | apt-key add - 
OK
 
 
 
 
# apt-key list
/etc/apt/trusted.gpg
--------------------
pub   1024D/437D05B5 2004-09-12
uid                  Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
sub   2048g/79164387 2004-09-12
 
pub   1024D/FBB75451 2004-12-30
uid                  Ubuntu CD Image Automatic Signing Key <cdimage@ubuntu.com>
 
pub   4096R/4BD6EC30 2010-07-10 [expires: 2016-07-08]
uid                  Puppet Labs Release Key (Puppet Labs Release Key) <info@puppetlabs.com>

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