1、CentOS使用yum update更新时不升级内核
cp /etc/yum.conf /etc/yum.conf.bak2、修改yum的配置文件
vi /etc/yum.conf在[main]的最后添加
exclude=kernel*
exclude=centos-release*说明：不要采用低版本中常用的如下方式：yum –exclude=kernel* update
这个命令在Fedora中基本可以用，但是对于 centos-release 的包无法处理。
下午安装 cockpit 时，使用 yum 工具的时候哦，出现如下信息：
This system is not registered with an entitlement server. You can use subscription-manager to register.
尽管不影响centos 的使用，安装软件也没有任何的影响。但是也是想知道其中的原因；下面是在国外论坛上对于centos 的讨论。
Installing Cockpit on CentOS7 adds the following nag/notice - seen every time you use yum update etc.:
"This system is not registered with Subscription Management. You can use subscription-manager to register"
Removing the cockpit-subscriptions - breaks the web interface fuctionality - You can log in but then you get an error page.
Does anyone have a fix for this?
Obviously, this is designed for RHEL but, seems the CentOS package shouldn't have this "Feature".