yum error creating exported file system for diskless client

[Frederick N. Brier]

I was following the directions in Chapter 18. Setting Up A Remote Diskless System <https://docs.fedoraproject.org/en-US/Fedora/14/html/Storage_Administration_Guide/nfs-diskless-systems.html> and got to 18.3 <https://docs.fedoraproject.org/en-US/Fedora/14/html/Storage_Administration_Guide/diskless-nfs-config.html> where it said Fedora could be installed to a directory that would be exported.  I had previously created a 2GB ext4 LVM volume and mounted it at /diskless/myhostname and then attempted to execute the yum command:

[root at myserver yum.repos.d]# yum groupinstall Base --installroot=/diskless/myhostname
Loaded plugins: refresh-packagekit
fedora/metalink                                                                                                            |  18 kB     00:00
Could not parse metalink https://mirrors.fedoraproject.org/metalink?repo=fedora-$releasever&arch=x86_64 error was
No repomd file
Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora. Please verify its path and try again
[root at myserver yum.repos.d]#

yum update works fine.  I tried doing a "yum clean all".  Did not fix it.  What step am I missing?  Thank you.
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