The move to /linux/scientific/obsolete/<version name> for Scientific 
Linux 4 is now complete.

On 06/11/2012 10:01 AM, Pat Riehecky wrote:
> Reminder:
>
> As of February 2012 Scientific Linux 4 has been receiving no updates 
> of any type since it has been designated End of Life.  The extra 
> length of public availability was provided for sites which have 
> continued to run Scientific Linux 4.
>
> For the last few months it has remained in the standard location.  On 
> June 12 2012 we will be moving all instances of Scientific Linux 4 
> into the 'obsolete' directory under /linux/scientific/ .  This is the 
> same place that Scientific Linux 3 has been since it was archived.
> They will be at /linux/scientific/obsolete/<version name>.
> This move will break all yum update operations that use the old path.
> If you wish to use our archived copies you may update your
> /etc/yum.repos.d/ files to point to this archived location they can
> still function while the archive is available.
>
> Again, this is location where we will archive Scientific Linux 4 after
> June 12 2012. We have no plans to delete Scientific Linux 4 or
> Scientific Linux 3 at this time.  We are merely making a clear
> distinction between current distributions, which can receive updates,
> and obsolete ones, which will not receive updates.
>
> Sites requiring Scientific Linux 3 or Scientific Linux 4 should make a 
> local copy of these trees so that they are always available to you if 
> you need them.  You can then update your /etc/yum.repos.d/ files to
> point to this local mirror for increased performance.
>
> No modifications of Scientific Linux 5 or Scientific Linux 6 will be 
> made as a part of this change.
>