[SOLVED] Centos sudo yum update fails

Issue

I have the following error when trying to update yum for security can someone advise a fix, i have run yum clean metadata and that didnt work i am worried about running yum clean all as this was suggested as a fix in another post as i am not sure what it does?

    sudo yum update
Loaded plugins: priorities, update-motd, upgrade-helper
amzn-main/latest                                         | 2.1 kB     00:00     
amzn-updates/latest                                      | 2.3 kB     00:00     
centos                                                   | 3.7 kB     00:00     
http://apt.sw.be/redhat/el5/en/x86_64/dag/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
Trying other mirror.
epel/x86_64/metalink                                     |  23 kB     00:00     
epel/x86_64                                              | 4.3 kB     00:00     
epel/x86_64/updateinfo                                   | 736 kB     00:00     
epel/x86_64/primary_db                                   | 5.9 MB     00:00     
http://apt.sw.be/redhat/el6/en/x86_64/rpmforge/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
Trying other mirror.
rpmforge                                                 | 1.9 kB     00:00     
4028 packages excluded due to repository priority protections
Resolving Dependencies
--> Running transaction check
---> Package aws-cli.noarch 0:1.10.46-1.40.amzn1 will be updated
---> Package aws-cli.noarch 0:1.10.56-1.41.amzn1 will be an update
---> Package compat-libtiff3.x86_64 0:3.9.4-10.13.amzn1 will be updated
---> Package compat-libtiff3.x86_64 0:3.9.4-18.14.amzn1 will be an update
---> Package curl.x86_64 0:7.40.0-8.58.amzn1 will be updated
---> Package curl.x86_64 0:7.40.0-8.59.amzn1 will be an update
---> Package dracut.noarch 0:004-336.28.amzn1 will be updated
---> Package dracut.noarch 0:004-409.31.amzn1 will be an update
http://apt.sw.be/redhat/el5/en/x86_64/dag/repodata/filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
Trying other mirror.

Thanks

Solution

You should delete invalid repo file in /etc/yum.repos.d/ directory.

First detect repo file with:

# grep -l apt.sw.be /etc/yum.repos.d/

Delete invalid repo file and clean yum cache with:

# sudo yum clean all

Answered By - Ali Okan Yüksel

Answer Checked By - Willingham (WPSolving Volunteer)