1. mount the fc6 cdrom
#mount /dev/cdrom /mnt/cdrom
or
#mount -o loop $SOMEWHERE/fc6.iso /mnt/cdrom
2. install createrepo
#cd /mnt/cdrom/Fedora/RPMS
#rpm -ivh createrepo***.rpm
3. create repo data log
#mkdir /mnt/repo
#cd /mnt/repo
#cp /mnt/cdrom/repodata/comps.xml /mnt/repo/repodata
#ln -s /mnt/cdrom /mnt/repo/Fedora
#createrepo -g /mnt/repo/repodate/comps.xml ./
#vi /etc/yum.conf
add
[a_local]
baseurl=file:///mnt/repo
