我使用 wget 下载kernel-devel，然后我想安装它，但似乎已通过以下方式安装yum：
$ rpm -i kernel-devel-3.10.0-327.el7.x86_64.rpm
warning: kernel-devel-3.10.0-327.el7.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID 192a7d7d: NOKEY
error: can't create transaction lock on /var/lib/rpm/.rpm.lock (Permission denied)
[echou@localhost kernel]$ sudo rpm -i kernel-devel-3.10.0-327.el7.x86_64.rpm
[sudo] password for echou:
warning: kernel-devel-3.10.0-327.el7.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID 192a7d7d: NOKEY
package kernel-devel-3.10.0-693.11.6.el7.x86_64 (which is newer than kernel-devel-3.10.0-327.el7.x86_64) is already installed
那么，如何降级呢？
编辑
我尝试使用kernel-devel-uname-r == $(uname -r)特殊版本：
$ sudo yum install "kernel-devel-uname-r == $(uname -r)"
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.cuhk.edu.hk
* epel: ftp.cuhk.edu.hk
* extras: ftp.cuhk.edu.hk
* updates: ftp.cuhk.edu.hk
No package kernel-devel-uname-r == 3.10.0-327.el7.x86_64 available.
Error: Nothing to do
但也失败了。
答案1
sudo yum downgrade ./kernel-devel-3.10.0-327.el7.x86_64.rpm
在 CentOS 7.4 上测试
答案2
只需使用 yum 删除较新的kernel-devel：
yum remove kernel-devel-3.10.0-327.el7.x86_64.rpm
然后你可以使用它rpm来安装它：
rpm -i kernel-devel-3.10.0-327.el7.x86_64.rpm