stuck on 7.0.1406

[daftendireckt]

Hi

I would need your help to upgrade my CentOS server. When running "yum update", none of the repo are found and it's trying over and over on all possible mirrors like this:

http://ftp.df.lth.se/pub/centos/7.0.140 ... repomd.xml: (28, 'Resolving timed out after 30387 milliseconds')
Trying other mirror.

I've finally found out that version 7.0.1406 is deprecated: http://mirror.zetup.net/CentOS/7.0.1406/readme
I've tried to edit CentOS-Base.repo and change the url but it's built with the variable $releasever:

#baseurl=http://mirror.centos.org/centos/$releas ... $basearch/

Question is how to edit this variable?

[gerald_clark]

You don't. It does not need to be changed, and changing it will break updates.
Is your network working?
Can you ping an external IP address?
Are you using a proxy?

[TrevorH]

You can also try yum clean all

Please post the output from rpm -q centos-release and rpm -q --qf '%{version}\n' centos-release

[daftendireckt]

Ok... shame on me! That was a network issue with no access to the internet
I fell into the trap as the repo address was also unreachable from my laptop but that's true that a timeout issue is different from an 404 error. Anyway, thanks for pointing me in the right direction, my server is now up to date.