dnf和rpm和yum关系_Rpm，Yum，Dnf“ NOKEY”公钥检查错误和解决方案

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dnf和rpm和yum关系

Rpm is very popular and secure package management format and application. Recent version of the rpm and yum command uses Public Key Check in order to make installation more secure. This is done by checking integrity of the rpm package.

Rpm是非常流行且安全的软件包管理格式和应用程序。 rpm和yum命令的最新版本使用公共密钥检查以使安装更加安全。这是通过检查rpm软件包的完整性来完成的。

RPM软件包的NOKEY错误 (NOKEY Error For RPM Package)

We may see the error during a package installation with rpm or yum command.The main reason for this error is digital signature key not verified. Also the error has NOKEY message which can be seen below. There are different reasons for this NOKEY error for RPM packages. Solutions are explained below for these different error cases.

在使用rpm或yum命令安装软件包时，我们可能会看到该错误。此错误的主要原因是未验证数字签名密钥。该错误还有NOKEY消息，如下所示。对于RPM软件包，此NOKEY错误有不同的原因。下面介绍了针对这些不同错误情况的解决方案。

显示包裹签名(Show Package Signature)

If we want to get more details about the signature of the package we can use -q -i options for rpm command. In this example, we will check the signature and public key of the oracle package.

如果要获取有关软件包签名的更多详细信息，可以对rpm命令使用-q -i选项。在此示例中，我们将检查oracle包的签名和公钥。

$ sudo rpm -qi oracle-database-xe-18c-1.0-1.x86_64.rpm

We can see that there is a warning which will print the public key error. We can see that Signature line show information about the hash algorithm, date and time and Key ID.

我们可以看到有一个警告会打印出公钥错误。我们可以看到， Signature行显示了有关哈希算法，日期和时间以及密钥ID的信息。

禁用RPG软件包的GPG签名检查 (Disable GPG Signature Check For The RPM Package)

We will use --nosignature in order to prevent GPG or signature check of given rpm package.

我们将使用--nosignature来防止GPG或给定rpm软件包的签名检查。

$ sudo rpm --nosignature oracle-database-xe-18c.rpm

禁用Yum / Dnf的GPG签名检查 (Disable GPG Signature Check For Yum/Dnf)

We can use yum or dnf command by providing --nogpgcheck option to the command. This will disable Public key or signature check for the current command. But signature check will not disabled in general.

通过为命令提供--nogpgcheck选项，可以使用yum或dnf命令。这将禁用当前命令的公钥或签名检查。但是通常不会禁用签名检查。

$ yum install --nogpgcheck oracle-database.rpm

全局禁用Yum / Dnf的GPG签名检查 (Disable GPG Signature Check For Yum/Dnf Globally)

Yum is a very useful package manager which can resolve dependencies of the rpm packages and download from the network. We can set gpgcheck configuration in /etc/yum.conf . This will disable signature check for all yum or dnf commands.

Yum是一个非常有用的软件包管理器，可以解决rpm软件包的依赖性并从网络下载。我们可以在/etc/yum.conf设置gpgcheck配置。这将禁用所有yum或dnf命令的签名检查。