yum update error in fedora 15

[n2xssvv.g02gfr12930]

On 06/01/2011 11:02 AM, sandeep Patel wrote:
> Hi All,
>           I have installed fedora 15x86_64(fresh).And when I tried to update
> It gives error like this:
>
> *[root at localhost ~]# yum update
> Loaded plugins: langpacks, presto, refresh-packagekit
> Could not retrieve mirrorlist
> http://mirrors.rpmfusion.org/mirrorlist?repo=free-fedora-15&arch=x86_64
> <http://mirrors.rpmfusion.org/mirrorlist?repo=free-fedora-15&arch=x86_64>
> error was
> 14: curl#5 - "Couldn't resolve proxy"
> Could not retrieve mirrorlist
> http://mirrors.rpmfusion.org/mirrorlist?repo=free-fedora-updates-released-15&arch=x86_64
> <http://mirrors.rpmfusion.org/mirrorlist?repo=free-fedora-updates-released-15&arch=x86_64>
> error was
> 14: curl#5 - "Couldn't resolve proxy"
> Could not retrieve mirrorlist
> http://mirrors.rpmfusion.org/mirrorlist?repo=nonfree-fedora-15&arch=x86_64
> <http://mirrors.rpmfusion.org/mirrorlist?repo=nonfree-fedora-15&arch=x86_64>
> error was
> 14: curl#5 - "Couldn't resolve proxy"
> Could not retrieve mirrorlist
> http://mirrors.rpmfusion.org/mirrorlist?repo=nonfree-fedora-updates-released-15&arch=x86_64
> <http://mirrors.rpmfusion.org/mirrorlist?repo=nonfree-fedora-updates-released-15&arch=x86_64>
> error was
> 14: curl#5 - "Couldn't resolve proxy"
> Error: Cannot retrieve repository metadata (repomd.xml) for
> repository: fedora. Please verify its path and try again*
>
> I am using my net connection behind proxy server. So I also made the
> changes in yum.conf file for proxy, proxy_username,proxy_password.I did
> googling for this problem. and i tried solution but they did not work.
>
> Could any one please help me to come out from this problem?
>
> --
> Sandeep Kumar Patel
> M.C.A.
> University of Hyderabad
> Email ID: leosandeep08 at gmail.com <mailto:leosandeep08 at gmail.com>
> Contact N0.: +91-9491383752
>

This looks like a problem with your network configuration, and not yum 
itself. Check if you can access the internet, if not then it almost 
certainly is your network configuration.

HTH

cpp4ever