我使用 Fedora 31 并尝试排除故障一个错误我在那里得到了从 Rawhide 升级软件包的建议。我已经安装了存储库dnf install fedora-repos-rawhide，然后尝试升级单个包。由于 GPG 问题，此操作失败：
# env LC_ALL=C dnf --enablerepo=rawhide update texlive-microtype
Last metadata expiration check: 0:02:15 ago on Wed Nov 13 10:11:12 2019.
Modular dependency problems:
Problem 1: conflicting requests
- nothing provides module(platform:f31) needed by module afterburn:rolling:3120190921123425:22d7e2a5-0.x86_64
Problem 2: conflicting requests
- nothing provides module(platform:f31) needed by module avocado:69lts:3120190813194337:f636be4b-0.x86_64
Problem 3: conflicting requests
- nothing provides module(platform:f31) needed by module meson:latest:3120190826183302:dc56099c-0.x86_64
Problem 4: conflicting requests
- nothing provides module(platform:f31) needed by module zram-generator:rolling:3120190813200958:22d7e2a5-0.x86_64
Problem 5: conflicting requests
- nothing provides module(platform:f31) needed by module afterburn:rolling:3120191015163839:22d7e2a5-0.x86_64
Problem 6: conflicting requests
- nothing provides module(platform:f31) needed by module avocado:69lts:3120191004211344:f636be4b-0.x86_64
Problem 7: conflicting requests
- nothing provides module(platform:f31) needed by module meson:latest:3120191009081836:dc56099c-0.x86_64
Problem 8: conflicting requests
- nothing provides module(platform:f31) needed by module zram-generator:rolling:3120191009082925:22d7e2a5-0.x86_64
Problem 9: conflicting requests
- nothing provides module(platform:f31) needed by module zola:rolling:3120190922161148:22d7e2a5-0.x86_64
Problem 10: conflicting requests
- nothing provides module(platform:f31) needed by module zincati:rolling:3120190926112556:22d7e2a5-0.x86_64
Problem 11: conflicting requests
- nothing provides module(platform:f31) needed by module tokei:rolling:3120190921122652:22d7e2a5-0.x86_64
Problem 12: conflicting requests
- nothing provides module(platform:f31) needed by module stratis:1:3120190907214611:22d7e2a5-0.x86_64
Problem 13: conflicting requests
- nothing provides module(platform:f31) needed by module skim:rolling:3120190921123929:22d7e2a5-0.x86_64
Problem 14: conflicting requests
- nothing provides module(platform:f31) needed by module silver:rolling:3120190912064049:22d7e2a5-0.x86_64
Problem 15: conflicting requests
- nothing provides module(platform:f31) needed by module sd:rolling:3120190921120742:22d7e2a5-0.x86_64
Problem 16: conflicting requests
- nothing provides module(platform:f31) needed by module rpick:latest:3120190515141045:4004e21e-0.x86_64
Problem 17: conflicting requests
- nothing provides module(platform:f31) needed by module ripgrep:latest:3120190803131619:22d7e2a5-0.x86_64
Problem 18: conflicting requests
- nothing provides module(platform:f31) needed by module pretty-git-prompt:rolling:3120190714104357:22d7e2a5-0.x86_64
Problem 19: conflicting requests
- nothing provides module(platform:f31) needed by module ninja:latest:3120190304180949:f636be4b-0.x86_64
Problem 20: conflicting requests
- nothing provides module(platform:f31) needed by module newsboat:latest:3120190728140405:22d7e2a5-0.x86_64
Problem 21: conflicting requests
- nothing provides module(platform:f31) needed by module minetest:5:3120190308194723:f636be4b-0.x86_64
Problem 22: conflicting requests
- nothing provides module(platform:f31) needed by module lsd:rolling:3120190803124134:22d7e2a5-0.x86_64
Problem 23: conflicting requests
- nothing provides module(platform:f31) needed by module jmc:latest:3120190813124555:7188e41a-0.x86_64
Problem 24: conflicting requests
- nothing provides module(platform:f31) needed by module hyperfine:latest:3120190721071357:22d7e2a5-0.x86_64
Problem 25: conflicting requests
- nothing provides module(platform:f31) needed by module heatseeker:latest:3120190921124230:22d7e2a5-0.x86_64
Problem 26: conflicting requests
- nothing provides module(platform:f31) needed by module gimp:2.10:3120190904121229:f636be4b-0.x86_64
Problem 27: conflicting requests
- nothing provides module(platform:f31) needed by module fish:3:3120190219150858:6045e57d-0.x86_64
Problem 28: conflicting requests
- nothing provides module(platform:f31) needed by module ffsend:latest:3120190812145625:22d7e2a5-0.x86_64
Problem 29: conflicting requests
- nothing provides module(platform:f31) needed by module fedora-coreos-pinger:rolling:3120190813195119:22d7e2a5-0.x86_64
Problem 30: conflicting requests
- nothing provides module(platform:f31) needed by module fd-find:rolling:3120190813195105:22d7e2a5-0.x86_64
Problem 31: conflicting requests
- nothing provides module(platform:f31) needed by module exa:latest:3120190813195051:22d7e2a5-0.x86_64
Problem 32: conflicting requests
- nothing provides module(platform:f31) needed by module eclipse:2019-06:3120190902131726:efdece7d-0.x86_64
Problem 33: conflicting requests
- nothing provides module(platform:f31) needed by module dwm:6.2:3120190813195003:f636be4b-0.x86_64
Problem 34: conflicting requests
- nothing provides module(platform:f31) needed by module dutree:rolling:3120190926112243:22d7e2a5-0.x86_64
Problem 35: conflicting requests
- nothing provides module(platform:f31) needed by module cbindgen:rolling:3120190515070043:4004e21e-0.x86_64
Problem 36: conflicting requests
- nothing provides module(platform:f31) needed by module bat:latest:3120190813194409:22d7e2a5-0.x86_64
Problem 37: conflicting requests
- nothing provides module(platform:f31) needed by module askalono-cli:rolling:3120190813194323:22d7e2a5-0.x86_64
Dependencies resolved.
=======================================================================================================================
Package Architecture Version Repository Size
=======================================================================================================================
Upgrading:
texlive-microtype noarch 9:svn50187-5.fc32 rawhide 67 k
Transaction Summary
=======================================================================================================================
Upgrade 1 Package
Total size: 67 k
Is this ok [y/N]: y
Downloading Packages:
[SKIPPED] texlive-microtype-svn50187-5.fc32.noarch.rpm: Already downloaded
warning: /var/cache/dnf/rawhide-2d95c80a1fa0a67d/packages/texlive-microtype-svn50187-5.fc32.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 12c944d0: NOKEY
Fedora - Rawhide - Developmental packages for the next Fedora release 1.6 MB/s | 1.6 kB 00:00
GPG key at file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-31-x86_64 (0x3C3359C4) is already installed
The GPG keys listed for the "Fedora - Rawhide - Developmental packages for the next Fedora release" repository are already installed but they are not correct for this package.
Check that the correct key URLs are configured for this repository.. Failing package is: texlive-microtype-9:svn50187-5.fc32.noarch
GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-31-x86_64
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: GPG check FAILED
这些步骤似乎是正确的，至少是在 2014 年。我是否错过了一步？我还需要手动导入 Rawhide 密钥吗？
答案1
在输出中可以看到该包是用 GPG key 签名的0x3C3359C4。看着Fedora 密钥列表，发现这是Fedora 32的签名密钥。但是/etc/yum.repos.d/fedora-rawhide.repo一看就知道它是用来$releasever解析密钥的。在我的系统上，这是 Fedora 31 的密钥，因此它不起作用。我刚刚将其更改为 Hard 32，然后就成功了。
--- fedora-rawhide.repo.bak 2019-10-11 20:50:44.000000000 +0200
+++ fedora-rawhide.repo 2019-11-13 10:28:34.986757292 +0100
@@ -28,7 +28,7 @@
repo_gpgcheck=0
type=rpm
gpgcheck=1
-gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-32-$basearch
skip_if_unavailable=False
[rawhide-debuginfo]
@@ -39,7 +39,7 @@
repo_gpgcheck=0
type=rpm
gpgcheck=1
-gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-32-$basearch
skip_if_unavailable=False
[rawhide-source]
@@ -50,6 +50,6 @@
repo_gpgcheck=0
type=rpm
gpgcheck=1
-gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-32-$basearch
skip_if_unavailable=False