im试图在redhat 7.9上yum-install openssl-devel，得到以下依赖性错误，似乎已经安装了新版本的openssl-libs，而openssl-devel仍依赖于旧版本：
Error: Package: 1:openssl-devel-1.0.2k-19.el7.x86_64 (rhel7.9-server)
Requires: openssl-libs(x86-64) = 1:1.0.2k-19.el7
Installed: 1:openssl-libs-1.0.2k-21.el7_9.x86_64 (@rhel7.9-fix)
openssl-libs(x86-64) = 1:1.0.2k-21.el7_9
Available: 1:openssl-libs-1.0.2k-19.el7.x86_64 (rhel7.9-server)
openssl-libs(x86-64) = 1:1.0.2k-19.el7
问题是，我似乎无法降级或删除openssl-libs 7.9-fix:
sudo yum downgrade openssl-libs
[sudo] password for idm:
Loaded plugins: product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
Resolving Dependencies
--> Running transaction check
---> Package openssl-libs.x86_64 1:1.0.2k-19.el7 will be a downgrade
---> Package openssl-libs.x86_64 1:1.0.2k-21.el7_9 will be erased
--> Finished Dependency Resolution
Error: Package: 1:openssl-1.0.2k-21.el7_9.x86_64 (@rhel7.9-fix)
Requires: openssl-libs(x86-64) = 1:1.0.2k-21.el7_9
Removing: 1:openssl-libs-1.0.2k-21.el7_9.x86_64 (@rhel7.9-fix)
openssl-libs(x86-64) = 1:1.0.2k-21.el7_9
Downgraded By: 1:openssl-libs-1.0.2k-19.el7.x86_64 (rhel7.9-server)
openssl-libs(x86-64) = 1:1.0.2k-19.el7
sudo yum remove openssl-libs
...
Error: Trying to remove "systemd", which is protected
Error: Trying to remove "yum", which is protected
因此，目前我不确定应该如何安装openssl-devel。提前感谢
通过添加具有正确包的新存储库解决了问题