The StAB cluster subscribes to Red Hat, and uses version 6, which is one behind the latest version, version 7.
Being one version behind is typicaly not a problem, as it continues to be fully supported. However, there are software packages that like to use the bleeding edge, and there are admitted problems installing these programs.
Installation of devtoolset-2
There are two ways apparently via RHN Classic or RH Subscription Management, and we choose the latter because there is a useful command-line tool for it.
To install on a node:
ssh node4 'subscription-manager subscribe --pool=8a85f9814ed67b98014eda13ed983c7d'
Note here that we have previously been able to verify the pool ID. Documentation for this can be found at
This will also enable the appropriate repos for you (though *-source-rpms and *-debug-rpms may be left out).
outdated repomd.xml warnings
You can get rid of them (i.e. update the repomd.xml) by:
yum clean all yum update yum*
PYCURL error 7
Note that this could easily occur is the squid server on marvin has failed. Make sure you at least try and restart the squid server on marvin.
This link has a fairly exhaustive for checking errors using tcpdump and nc.
RedHat service types
- A service is usually under one or more of these.
- Some of them are a little old.
- it's probably best to use subscription manager.
Considering upgrading to RHEL7
A link for this is solution number 637583
- This could be one heck of an epic upgrade, especially as regards the manually installed software programs (150 or them, some of them very big)
- Most likely it will be the different C library that will cause problems
- Library and linking problems are big ... fear them!