业务需求安装一个免费的ssl毫不犹豫想到了Let's Encrypt,于是yum 安装,但是这台机器上面遇到了怪事,没有可用的安装包,于是换了几次阿里,163,sohu源,换过cdn最终还是没能成功,照旧No package certbot available,呃呵,卸载重装epel-release.noarch,折腾了好久没解决。@H_502_3@
后来找到原因尴尬了这台服务器同事以前安装插件时候把CentOS-Epel.repo 设置成enabled=0以后就没改回来。@H_502_3@
yum update 不更新内核只更软件以下两个办法:@H_502_3@
1.@H_502_3@
yum –exclude=kernel* update@H_502_3@
2.@H_502_3@
vim /etc/yum.conf@H_502_3@
[main]@H_502_3@
exclude=kernel*@H_502_3@
exclude=centos-release*@H_502_3@
@H_502_3@
更新repo源:@H_502_3@
1.cd /etc/yum.repos.d/@H_502_3@
2.mv CentOS-Base.repo CentOS-Base.repo.bak@H_502_3@
3.@H_502_3@
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo@H_502_3@
或者@H_502_3@
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo@H_502_3@
@H_502_3@
mv Centos-7.repo CentOS-Base.repo@H_502_3@
yum clean all
@H_502_3@
yum makecache@H_502_3@