Re: yum install –nogpgcheck and friends

Hello Yumhamster - and welcome to the Forum.

First of all;  please read the "New Members Start Here" boards before submitting your posts, or they may be deleted. 

I am not familiar with this subject but I noticed a couple of things. 
1. Did the system provide any error messages during the attempted installation?  If so, please post them - the more information that you provide the easier it is for people to assist. 
2. Although the file /etc/pki/rpm-gpg/ is writable by the owner, you might like to try ...