从Fedora 34升级至39时遭遇GPG密钥错误求助

问题描述 #

执行升级命令时出现GPG密钥文件找不到的错误：

sudo dnf system-upgrade download --releasever=39 --skip-broken --allowerasing

错误信息：

Curl error (37): Couldn't read a file:// file for file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-39-x86_64 [Couldn't open file /etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-39-x86_64]

此前尝试的以下命令未解决问题：

sudo dnf clean all 
sudo rpm --import \ "https://rpmfusion.org/keys?action=AttachFile&do=get&target=RPM-GPG-KEY-rpmfusion-free-fedora-$(rpm -E %fedora)" \ "https://rpmfusion.org/keys?action=AttachFile&do=get&target=RPM-GPG-KEY-rpmfusion-nonfree-fedora-$(rpm -E %fedora)" 
sudo dnf reinstall \ "https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm" \ "https://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm" 

解决步骤 #

1. 导入Fedora 39官方GPG密钥
   先安装密钥管理包（若未安装）：

   sudo dnf install distribution-gpg-keys
   

   再导入Fedora 39的x86_64密钥：

   sudo rpm --import /usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-39-x86_64
   

2. 重置Fedora官方仓库配置
   重新安装fedora-release包以修复仓库和密钥关联：

   sudo dnf reinstall fedora-release
   

   更新仓库缓存：

   sudo dnf makecache
   

3. 重新执行升级命令
   再次运行升级下载指令：

   sudo dnf system-upgrade download --releasever=39 --skip-broken --allowerasing
   

4. 修复RPM Fusion仓库（若仍有相关问题）
   卸载旧版本的RPM Fusion配置包：

   sudo dnf remove rpmfusion-free-release rpmfusion-nonfree-release
   

   安装Fedora 39对应的RPM Fusion包：

   sudo dnf install rpmfusion-free-release-39 rpmfusion-nonfree-release-39
   

   导入RPM Fusion的39密钥：

   sudo rpm --import /usr/share/distribution-gpg-keys/rpmfusion/RPM-GPG-KEY-rpmfusion-free-fedora-39
   sudo rpm --import /usr/share/distribution-gpg-keys/rpmfusion/RPM-GPG-KEY-rpmfusion-nonfree-fedora-39
   

内容的提问来源于stack exchange，提问作者user3882729