标签：CentOS centos mirrors aarch64 GPG releasever https ARM
最近遇到 ARM 版 CentOS 配置阿里源更新报错：
The GPG keys listed for the "CentOS-7 - Base" repository are already installed but they are not correct for this package.
Check that the correct key URLs are configured for this repository.GPG 在 Linux 上的应用主要是实现官方发布的包的签名机制。
GPG 分为公钥及私钥。
公钥：顾名思意，即可共享的密钥，主要用于验证私钥加密的数据及签名要发送给私钥方的数据。
私钥：由本地保留的密钥，用于签名本地数据及验证用公钥签名的数据。
出现上述错误是因为阿里源中配置的GPG签名错误（第17行及所有相同的 gpgkey 地址）：
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base
baseurl=https://mirrors.aliyun.com/centos-altarch/$releasever/os/$basearch/
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7 #<b>错误的签名地址</b>
#released updates
[updates]
name=CentOS-$releasever - Updates
baseurl=https://mirrors.aliyun.com/centos-altarch/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
baseurl=https://mirrors.aliyun.com/centos-altarch/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
enabled=1
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
baseurl=https://mirrors.aliyun.com/centos-altarch/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
目前 CentOS 官方提供的的签名是https://www.centos.org/keys/RPM-GPG-KEY-CentOS-7-aarch64
因此将阿里源配置中的 gpgkey 地址修改即可。
最终配置文件如下：
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base
baseurl=https://mirrors.aliyun.com/centos-altarch/$releasever/os/$basearch/
gpgcheck=1
gpgkey=https://www.centos.org/keys/RPM-GPG-KEY-CentOS-7-aarch64
#released updates
[updates]
name=CentOS-$releasever - Updates
baseurl=https://mirrors.aliyun.com/centos-altarch/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=https://www.centos.org/keys/RPM-GPG-KEY-CentOS-7-aarch64
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
baseurl=https://mirrors.aliyun.com/centos-altarch/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=https://www.centos.org/keys/RPM-GPG-KEY-CentOS-7-aarch64
enabled=1
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
baseurl=https://mirrors.aliyun.com/centos-altarch/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=https://www.centos.org/keys/RPM-GPG-KEY-CentOS-7-aarch64配置完后，执行：
yum clean allyum makecache后续更新或安装软件时会弹出是否确认新配置的 GPG KEY，选择同意即可正常更新和安装。
作者：李凌
本文转自【中国信创服务社区】
标签：CentOS,centos,mirrors,aarch64,GPG,releasever,https,ARM 来源： https://blog.csdn.net/m0_46573967/article/details/113623998
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