Red Hat Enterprise Linux(企业版)
　　To download a Free 30-day Subscription to Red Hat Enterprise Linux:http://www.redhat.com/software/rhel/eval/
　　Support and Pricing Options for Red Hat Enterprise Linux:http://www.redhat.com/software/rhel/
　　Red Hat Fedora Download (FC，是免费的)
　　Red Hat Fedora Download:http://fedora.redhat.com/download/
　　Red Hat Fedora Download Mirror Access:http://fedora.redhat.com/download/mirrors.html
　　Red Hat Linux Download (RH 7.3, 8.0, 9)
　　Indiana, USA:http://csociety-ftp.ecn.purdue.edu/pub/redhatftp://csociety-ftp.ecn.purdue.edu/pub/redhat
　　Minnesota, USA:ftp://ftp.mn-linux.org/linux/redhat
　　Buffalo, New York, USA:ftp://ftp.cse.buffalo.edu/mirror/Linux/redhat
　　Pennsylvania, USA:http://carroll.cac.psu.edu/pub/linux/distributions/redhat/redhatftp://carroll.cac.psu.edu/pub/linux/distributions/redhat/redhat
　　Australia:ftp://ftp.planetmirror.com/pub/redhathttp://www.planetmirror.com/pub/redhat

挂载镜像

mount /dev/cdrom /mnt/