1.下载
    1.1 Ubuntu
        CD
            MD5SUM:http://releases.ubuntu.com/releases/9.10/MD5SUMS
            Text Mode
                i386:  http://releases.ubuntu.com/releases/9.10/ubuntu-9.10-alternate-i386.iso
                AMD64: http://releases.ubuntu.com/releases/9.10/ubuntu-9.10-alternate-amd64.iso
            GUI Mode
                i386:  http://releases.ubuntu.com/releases/9.10/ubuntu-9.10-desktop-i386.iso
                AMD64:  http://releases.ubuntu.com/releases/9.10/ubuntu-9.10-desktop-amd64.iso
        DVD
            MD5SUM:http://cdp_w_picpaths.ubuntu.com/dvd/current/MD5SUMS
            i386:http://cdp_w_picpaths.ubuntu.com/dvd/current/karmic-dvd-i386.iso
            AMD64:http://cdp_w_picpaths.ubuntu.com/dvd/current/karmic-dvd-amd64.iso
            
    1.2 OpenSUSE
        MD5SUM:http://download.opensuse.org/distribution/11.2/iso/openSUSE-11.2-DVD-i586.iso.md5
        i386：http://ftp.novell.co.jp/pub/opensuse/distribution/11.2/iso/openSUSE-11.2-DVD-i586.iso
        AMD64：http://ftp.novell.co.jp/pub/opensuse/distribution/11.2/iso/openSUSE-11.2-DVD-x86_64.iso
        BT:http://download.opensuse.org/distribution/11.2/iso/openSUSE-11.2-DVD-i586.iso.torrent
    1.3 Fedora
        i386：http://mirrors.163.com/fedora/releases/12/Fedora/i386/iso/Fedora-12-i386-DVD.iso
        AMD64：http://mirrors.163.com/fedora/releases/12/Fedora/x86_64/iso/Fedora-12-x86_64-DVD.iso
        BT：http://torrent.fedoraproject.org/
2.校验
    1.校验工具校验
        WinMD5工具/Hash（强烈推荐）
    2.虚拟机校验法
        VMware Player/VirtualBox
3.刻录
    1.Windows下刻录
        Nero/ImgBurn