Either there is something in your /etc/yum.repos.d that is pointing to that site 
Or there is one of the mirrorlists that your /etc/yum.repos.d is pointing to, that is.

What happens if you do
Yum --disablerepo=adobe-linux  list

Steve


-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]] On Behalf Of Larry Linder
Sent: Sunday, July 22, 2012 10:03 AM
To: scientific-linux-users
Subject: Problem with "yum"

We are at SL 5.7 and attempting to update Libre Office to 3.5.5.

[root@engr01 /]# yum clean all
Loaded plugins: kernel-module
Cleaning up Everything

[root@engr01 /]# yum list
Loaded plugins: kernel-module
adobe-linux-x86_64                                       |  951 B     00:00
adobe-linux-x86_64/primary                               | 1.2 kB     00:00
adobe-linux-x86_64                                                          
2/2
http://ftp.novell.com/pub/mono/download-stable/RHEL_5/repodata/repomd.xml: 
[Errno 14] HTTP Error 404: Not Found
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: mono. 
Please verify its path and try again

"yum" apears to be be broken!!!  as I can't even list the installed.  Since we do not use Adobe anything and we abandoned Novel 10 years ago - any clue is useful.

Any hints as to what changed in the last several weeks?

Thank You
Larry Linder