the reason for this error
Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora. Please verify its path and try again
is that 14 has been UNSUPPORTED for a very LONG time ( in the fedora world)
it is 7 and will be 8 EIGHT versions out of date in a few weeks
the old and NOT updated for 3 YEARS!!!!
software was removed from almost all of the mirrors
it is still in the historical archive in the main fedora server
also you DO NOT install only a very TINY part of the needed auto tools and gcc by only installing a very very tiny part of it
"yum install autoconf"
NONE!!! of any guide anyplace on the net will have you ONLY install autoconf all by it's self
please READ!!! yes read
the user guides that the fedora team put together
-- they are VERY well documented
use the "groupinstall" option for the "Development Tools "
---- and read the help page---
then install the group
---- then from the listed groups install it -------
yum groupinstall "Development Tools"