GPGerror problem in apt-get

GPGerror problem in apt-get -- Debian information in the Linux release. For details, refer to the following section. After Debian is installed in this document, the following warning occurs when you use apt-get update to update the software source:

GPG error: http://debian.linux.org.tw etch Release: The following signature cannot be verified because there is no public key: NO_PUBKEY 07DC563D1F41B907

Solution:

First, make sure that the following programs are installed

# Apt-get install gnupg

Then, manually import the required public key

# Gpg -- keyserver keyring.debian.org -- recv-keys 07DC563D1F41B907

# Gpg -- armor -- export 07DC563D1F41B907 | apt-key add-

After "OK" is displayed on the screen, you can update the software source again.