Hello, all;

I'm trying to use the add/remove software program in Yellow Dog 5.0 on a Mac G4 PPC and keep encountering this message:

"Unable to retrieve software information. This could be caused by not having a network connection available."

I'm assuming my network connection is fine, as I'm accessing the internet and downloading files with no problem. I've searched the web for solutions, and what I've tried so far does not seem to help. running yum update from the command line gives me the following:

Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories
extras [1/3]
(url removed) ... repomd.xml: [Errno 14] HTTP Error 404: Date: Wed, 16 Dec 2009 16:17:23 GMT
Server: Apache
Vary: accept-language,accept-charset
Accept-Ranges: bytes
Transfer-Encoding: chunked
Content-Type: text/html; charset=iso-8859-1
Content-Language: en
Trying other mirror.
(url removed) ... repomd.xml: [Errno 14] HTTP Error 404: Date: Wed, 16 Dec 2009 16:17:33 GMT
Server: Apache
Vary: accept-language,accept-charset
Accept-Ranges: bytes
Transfer-Encoding: chunked
Content-Type: text/html; charset=iso-8859-1
Content-Language: en
Trying other mirror.
Cannot open/read repomd.xml file for repository: extras
failure: repodata/repomd.xml from extras: [Errno 256] No more mirrors to try.
Error: failure: repodata/repomd.xml from extras: [Errno 256] No more mirrors to try.


Any ideas? Thanks in advance...